ARM: dts: imx: Set default tuning step for imx6sx usdhc

[ Upstream commit 0a2b96e42a0284c4fc03022236f656a085ca714a ]

If the tuning step is not set, the tuning step is set to 1.
For some sd cards, the following Tuning timeout will occur.

Tuning failed, falling back to fixed sampling clock

So set the default tuning step. This refers to the NXP vendor's
commit below:

https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/
arch/arm/boot/dts/imx6sx.dtsi#L1108-L1109

Fixes: 1e336aa0c025 ("mmc: sdhci-esdhc-imx: correct the tuning start tap and step setting")
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: imx8mm: Drop CSI1 PHY reference clock configuration

[ Upstream commit f02b53375e8f14b4c27a14f6e4fb6e89914fdc29 ]

The CSI1 PHY reference clock is limited to 125 MHz according to:
i.MX 8M Mini Applications Processor Reference Manual, Rev. 3, 11/2020
Table 5-1. Clock Root Table (continued) / page 307
Slice Index n = 123 .

Currently the IMX8MM_CLK_CSI1_PHY_REF clock is configured to be
fed directly from 1 GHz PLL2 , which overclocks them. Instead, drop
the configuration altogether, which defaults the clock to 24 MHz REF
clock input, which for the PHY reference clock is just fine.

Based on a patch from Marek Vasut for the imx8mn.

Fixes: e523b7c54c05 ("arm64: dts: imx8mm: Add CSI nodes")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: imx6: phytec: fix RTC interrupt level

[ Upstream commit 762b700982a1e0f562184363f19860c3b9bdd0bf ]

RTC interrupt level should be set to "LOW". This was revealed by the
introduction of commit:

  f181987ef477 ("rtc: m41t80: use IRQ flags obtained from fwnode")

which changed the way IRQ type is obtained.

Signed-off-by: Andrej Picej <andrej.picej@norik.com>
Reviewed-by: Stefan Riedmüller <s.riedmueller@phytec.de>
Fixes: 800d595151bb ("ARM: dts: imx6: Add initial support for phyBOARD-Mira")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: imx: align LED node names with dtschema

[ Upstream commit 4b0d1f2738899dbcc7a026d826373530019aa31b ]

The node names should be generic and DT schema expects certain pattern:

  imx50-kobo-aura.dtb: gpio-leds: 'on' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
  imx6dl-yapp4-draco.dtb: led-controller@30: 'chan@0', 'chan@1', 'chan@2' do not match any of the regexes: '^led@[0-8]$', '^multi-led@[0-8]$', 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Stable-dep-of: 762b700982a1 ("ARM: dts: imx6: phytec: fix RTC interrupt level")
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: rockchip: Disable HS400 for eMMC on ROCK 4C+

[ Upstream commit 2bd1d2dd808c60532283e9cf05110bf1bf2f9079 ]

There is some instablity with some eMMC modules on ROCK Pi 4 SBCs running
in HS400 mode. This ends up resulting in some block errors after a while
or after a "heavy" operation utilising the eMMC (e.g. resizing a
filesystem). An example of these errors is as follows:

    [  289.171014] mmc1: running CQE recovery
    [  290.048972] mmc1: running CQE recovery
    [  290.054834] mmc1: running CQE recovery
    [  290.060817] mmc1: running CQE recovery
    [  290.061337] blk_update_request: I/O error, dev mmcblk1, sector 1411072 op 0x1:(WRITE) flags 0x800 phys_seg 36 prio class 0
    [  290.061370] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:348: I/O error 10 writing to inode 29547 starting block 176466)
    [  290.061484] Buffer I/O error on device mmcblk1p1, logical block 172288
    [  290.061531] Buffer I/O error on device mmcblk1p1, logical block 172289
    [  290.061551] Buffer I/O error on device mmcblk1p1, logical block 172290
    [  290.061574] Buffer I/O error on device mmcblk1p1, logical block 172291
    [  290.061592] Buffer I/O error on device mmcblk1p1, logical block 172292
    [  290.061615] Buffer I/O error on device mmcblk1p1, logical block 172293
    [  290.061632] Buffer I/O error on device mmcblk1p1, logical block 172294
    [  290.061654] Buffer I/O error on device mmcblk1p1, logical block 172295
    [  290.061673] Buffer I/O error on device mmcblk1p1, logical block 172296
    [  290.061695] Buffer I/O error on device mmcblk1p1, logical block 172297

Disabling the Command Queue seems to stop the CQE recovery from running,
but doesn't seem to improve the I/O errors. Until this can be investigated
further, disable HS400 mode on the ROCK Pi 4 SBCs to at least stop I/O
errors from occurring.

Fixes: 246450344dad ("arm64: dts: rockchip: rk3399: Radxa ROCK 4C+")
Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>
Link: https://lore.kernel.org/r/20230705144255.115299-3-chris.obbard@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4

[ Upstream commit cee572756aa2cb46e959e9797ad4b730b78a050b ]

There is some instablity with some eMMC modules on ROCK Pi 4 SBCs running
in HS400 mode. This ends up resulting in some block errors after a while
or after a "heavy" operation utilising the eMMC (e.g. resizing a
filesystem). An example of these errors is as follows:

    [  289.171014] mmc1: running CQE recovery
    [  290.048972] mmc1: running CQE recovery
    [  290.054834] mmc1: running CQE recovery
    [  290.060817] mmc1: running CQE recovery
    [  290.061337] blk_update_request: I/O error, dev mmcblk1, sector 1411072 op 0x1:(WRITE) flags 0x800 phys_seg 36 prio class 0
    [  290.061370] EXT4-fs warning (device mmcblk1p1): ext4_end_bio:348: I/O error 10 writing to inode 29547 starting block 176466)
    [  290.061484] Buffer I/O error on device mmcblk1p1, logical block 172288
    [  290.061531] Buffer I/O error on device mmcblk1p1, logical block 172289
    [  290.061551] Buffer I/O error on device mmcblk1p1, logical block 172290
    [  290.061574] Buffer I/O error on device mmcblk1p1, logical block 172291
    [  290.061592] Buffer I/O error on device mmcblk1p1, logical block 172292
    [  290.061615] Buffer I/O error on device mmcblk1p1, logical block 172293
    [  290.061632] Buffer I/O error on device mmcblk1p1, logical block 172294
    [  290.061654] Buffer I/O error on device mmcblk1p1, logical block 172295
    [  290.061673] Buffer I/O error on device mmcblk1p1, logical block 172296
    [  290.061695] Buffer I/O error on device mmcblk1p1, logical block 172297

Disabling the Command Queue seems to stop the CQE recovery from running,
but doesn't seem to improve the I/O errors. Until this can be investigated
further, disable HS400 mode on the ROCK Pi 4 SBCs to at least stop I/O
errors from occurring.

While we are here, set the eMMC maximum clock frequency to 1.5MHz to
follow the ROCK 4C+.

Fixes: 1b5715c602fd ("arm64: dts: rockchip: add ROCK Pi 4 DTS support")
Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>
Tested-By: Folker Schwesinger <dev@folker-schwesinger.de>
Link: https://lore.kernel.org/r/20230705144255.115299-2-chris.obbard@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

arm64: dts: qcom: qrb5165-rb5: fix thermal zone conflict

[ Upstream commit 798f1df86e5709b7b6aedf493cc04c7fedbf544a ]

The commit 3a786086c6f8 ("arm64: dts: qcom: Add missing "-thermal"
suffix for thermal zones") renamed the thermal zone in the pm8150l.dtsi
file to comply with the schema. However this resulted in a clash with
the RB5 board file, which already contained the pm8150l-thermal zone for
the on-board sensor. This resulted in the board file definition
overriding the thermal zone defined in the PMIC include file (and thus
the on-die PMIC temp alarm was not probing at all).

Rename the thermal zone in qcom/qrb5165-rb5.dts to remove this override.

Fixes: 3a786086c6f8 ("arm64: dts: qcom: Add missing "-thermal" suffix for thermal zones")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230613131224.666668-1-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

bus: ti-sysc: Flush posted write on enable before reset

[ Upstream commit 34539b442b3bc7d5bf10164750302b60b91f18a7 ]

The am335x devices started producing boot errors for resetting musb module
in because of subtle timing changes:

Unhandled fault: external abort on non-linefetch (0x1008)
...
sysc_poll_reset_sysconfig from sysc_reset+0x109/0x12
sysc_reset from sysc_probe+0xa99/0xeb0
...

The fix is to flush posted write after enable before reset during
probe. Note that some devices also need to specify the delay after enable
with ti,sysc-delay-us, but this is not needed for musb on am335x based on
my tests.

Reported-by: kernelci.org bot <bot@kernelci.org>
Closes: https://storage.kernelci.org/next/master/next-20230614/arm/multi_v7_defconfig+CONFIG_THUMB2_KERNEL=y/gcc-10/lab-cip/baseline-beaglebone-black.html
Fixes: 596e7955692b ("bus: ti-sysc: Add support for software reset")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ice: Block switchdev mode when ADQ is active and vice versa

[ Upstream commit 43d00e102d9ecbe2635d7e3f2e14d2e90183d6af ]

ADQ and switchdev are not supported simultaneously. Enabling both at the
same time can result in nullptr dereference.

To prevent this, check if ADQ is active when changing devlink mode to
switchdev mode, and check if switchdev is active when enabling ADQ.

Fixes: fbc7b27af0f9 ("ice: enable ndo_setup_tc support for mqprio_qdisc")
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230816193405.1307580-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

qede: fix firmware halt over suspend and resume

[ Upstream commit 2eb9625a3a32251ecea470cd576659a3a03b4e59 ]

While performing certain power-off sequences, PCI drivers are
called to suspend and resume their underlying devices through
PCI PM (power management) interface. However this NIC hardware
does not support PCI PM suspend/resume operations so system wide
suspend/resume leads to bad MFW (management firmware) state which
causes various follow-up errors in driver when communicating with
the device/firmware afterwards.

To fix this driver implements PCI PM suspend handler to indicate
unsupported operation to the PCI subsystem explicitly, thus avoiding
system to go into suspended/standby mode.

Without this fix device/firmware does not recover unless system
is power cycled.

Fixes: 2950219d87b0 ("qede: Add basic network device support")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230816150711.59035-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: do not allow gso_size to be set to GSO_BY_FRAGS

[ Upstream commit b616be6b97688f2f2bd7c4a47ab32f27f94fb2a9 ]

One missing check in virtio_net_hdr_to_skb() allowed
syzbot to crash kernels again [1]

Do not allow gso_size to be set to GSO_BY_FRAGS (0xffff),
because this magic value is used by the kernel.

[1]
general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
CPU: 0 PID: 5039 Comm: syz-executor401 Not tainted 6.5.0-rc5-next-20230809-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:skb_segment+0x1a52/0x3ef0 net/core/skbuff.c:4500
Code: 00 00 00 e9 ab eb ff ff e8 6b 96 5d f9 48 8b 84 24 00 01 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ea 21 00 00 48 8b 84 24 00 01
RSP: 0018:ffffc90003d3f1c8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 000000000001fffe RCX: 0000000000000000
RDX: 000000000000000e RSI: ffffffff882a3115 RDI: 0000000000000070
RBP: ffffc90003d3f378 R08: 0000000000000005 R09: 000000000000ffff
R10: 000000000000ffff R11: 5ee4a93e456187d6 R12: 000000000001ffc6
R13: dffffc0000000000 R14: 0000000000000008 R15: 000000000000ffff
FS: 00005555563f2380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020020000 CR3: 000000001626d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
udp6_ufo_fragment+0x9d2/0xd50 net/ipv6/udp_offload.c:109
ipv6_gso_segment+0x5c4/0x17b0 net/ipv6/ip6_offload.c:120
skb_mac_gso_segment+0x292/0x610 net/core/gso.c:53
__skb_gso_segment+0x339/0x710 net/core/gso.c:124
skb_gso_segment include/net/gso.h:83 [inline]
validate_xmit_skb+0x3a5/0xf10 net/core/dev.c:3625
__dev_queue_xmit+0x8f0/0x3d60 net/core/dev.c:4329
dev_queue_xmit include/linux/netdevice.h:3082 [inline]
packet_xmit+0x257/0x380 net/packet/af_packet.c:276
packet_snd net/packet/af_packet.c:3087 [inline]
packet_sendmsg+0x24c7/0x5570 net/packet/af_packet.c:3119
sock_sendmsg_nosec net/socket.c:727 [inline]
sock_sendmsg+0xd9/0x180 net/socket.c:750
____sys_sendmsg+0x6ac/0x940 net/socket.c:2496
___sys_sendmsg+0x135/0x1d0 net/socket.c:2550
__sys_sendmsg+0x117/0x1e0 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff27cdb34d9

Fixes: 3953c46c3ac7 ("sk_buff: allow segmenting based on frag sizes")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Xin Long <lucien.xin@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230816142158.1779798-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

sock: Fix misuse of sk_under_memory_pressure()

[ Upstream commit 2d0c88e84e483982067a82073f6125490ddf3614 ]

The status of global socket memory pressure is updated when:

  a) __sk_mem_raise_allocated():

enter: sk_memory_allocated(sk) >  sysctl_mem[1]
leave: sk_memory_allocated(sk) <= sysctl_mem[0]

  b) __sk_mem_reduce_allocated():

leave: sk_under_memory_pressure(sk) &&
sk_memory_allocated(sk) < sysctl_mem[0]

So the conditions of leaving global pressure are inconstant, which
may lead to the situation that one pressured net-memcg prevents the
global pressure from being cleared when there is indeed no global
pressure, thus the global constrains are still in effect unexpectedly
on the other sockets.

This patch fixes this by ignoring the net-memcg's pressure when
deciding whether should leave global memory pressure.

Fixes: e1aab161e013 ("socket: initial cgroup code.")
Signed-off-by: Abel Wu <wuyun.abel@bytedance.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Link: https://lore.kernel.org/r/20230816091226.1542-1-wuyun.abel@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

sfc: don't unregister flow_indr if it was never registered

[ Upstream commit fa165e1949976704500a442faeef8d9596faee76 ]

In efx_init_tc(), move the setting of efx->tc->up after the
 flow_indr_dev_register() call, so that if it fails, efx_fini_tc()
 won't call flow_indr_dev_unregister().

Fixes: 5b2e12d51bd8 ("sfc: bind indirect blocks for TC offload on EF100")
Suggested-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/a81284d7013aba74005277bd81104e4cfbea3f6f.1692114888.git.ecree.xilinx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: dsa: mv88e6xxx: Wait for EEPROM done before HW reset

[ Upstream commit 23d775f12dcd23d052a4927195f15e970e27ab26 ]

If the switch is reset during active EEPROM transactions, as in
just after an SoC reset after power up, the I2C bus transaction
may be cut short leaving the EEPROM internal I2C state machine
in the wrong state.  When the switch is reset again, the bad
state machine state may result in data being read from the wrong
memory location causing the switch to enter unexpected mode
rendering it inoperational.

Fixes: a3dcb3e7e70c ("net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset")
Signed-off-by: Alfred Lee <l00g33k@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230815001323.24739-1-l00g33k@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

i40e: fix misleading debug logs

[ Upstream commit 2f2beb8874cb0844e84ad26e990f05f4f13ff63f ]

Change "write" into the actual "read" word.
Change parameters description.

Fixes: 7073f46e443e ("i40e: Add AQ commands for NVM Update for X722")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Andrii Staikov <andrii.staikov@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

iavf: fix FDIR rule fields masks validation

[ Upstream commit 751969e5b1196821ef78f0aa664a8a97c92c9057 ]

Return an error if a field's mask is neither full nor empty. When a mask
is only partial the field is not being used for rule programming but it
gives a wrong impression it is used. Fix by returning an error on any
partial mask to make it clear they are not supported.
The ip_ver assignment is moved earlier in code to allow using it in
iavf_validate_fdir_fltr_masks.

Fixes: 527691bf0682 ("iavf: Support IPv4 Flow Director filters")
Fixes: e90cbc257a6f ("iavf: Support IPv6 Flow Director filters")
Signed-off-by: Piotr Gardocki <piotrx.gardocki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: openvswitch: reject negative ifindex

[ Upstream commit a552bfa16bab4ce901ee721346a28c4e483f4066 ]

Recent changes in net-next (commit 759ab1edb56c ("net: store netdevs
in an xarray")) refactored the handling of pre-assigned ifindexes
and let syzbot surface a latent problem in ovs. ovs does not validate
ifindex, making it possible to create netdev ports with negative
ifindex values. It's easy to repro with YNL:

$ ./cli.py --spec netlink/specs/ovs_datapath.yaml \
         --do new \
 --json '{"upcall-pid": 1, "name":"my-dp"}'
$ ./cli.py --spec netlink/specs/ovs_vport.yaml \
 --do new \
 --json '{"upcall-pid": "00000001", "name": "some-port0", "dp-ifindex":3,"ifindex":4294901760,"type":2}'

$ ip link show
-65536: some-port0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 7a:48:21:ad:0b:fb brd ff:ff:ff:ff:ff:ff
...

Validate the inputs. Now the second command correctly returns:

$ ./cli.py --spec netlink/specs/ovs_vport.yaml \
 --do new \
 --json '{"upcall-pid": "00000001", "name": "some-port0", "dp-ifindex":3,"ifindex":4294901760,"type":2}'

lib.ynl.NlError: Netlink error: Numerical result out of range
nl_len = 108 (92) nl_flags = 0x300 nl_type = 2
error: -34 extack: {'msg': 'integer out of range', 'unknown': [[type:4 len:36] b'\x0c\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x03\x00\xff\xff\xff\x7f\x00\x00\x00\x00\x08\x00\x01\x00\x08\x00\x00\x00'], 'bad-attr': '.ifindex'}

Accept 0 since it used to be silently ignored.

Fixes: 54c4ef34c4b6 ("openvswitch: allow specifying ifindex of new interfaces")
Reported-by: syzbot+7456b5dcf65111553320@syzkaller.appspotmail.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://lore.kernel.org/r/20230814203840.2908710-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

team: Fix incorrect deletion of ETH_P_8021AD protocol vid from slaves

[ Upstream commit dafcbce07136d799edc4c67f04f9fd69ff1eac1f ]

Similar to commit 01f4fd270870 ("bonding: Fix incorrect deletion of
ETH_P_8021AD protocol vid from slaves"), we can trigger BUG_ON(!vlan_info)
in unregister_vlan_dev() with the following testcase:

  # ip netns add ns1
  # ip netns exec ns1 ip link add team1 type team
  # ip netns exec ns1 ip link add team_slave type veth peer veth2
  # ip netns exec ns1 ip link set team_slave master team1
  # ip netns exec ns1 ip link add link team_slave name team_slave.10 type vlan id 10 protocol 802.1ad
  # ip netns exec ns1 ip link add link team1 name team1.10 type vlan id 10 protocol 802.1ad
  # ip netns exec ns1 ip link set team_slave nomaster
  # ip netns del ns1

Add S-VLAN tag related features support to team driver. So the team driver
will always propagate the VLAN info to its slaves.

Fixes: 8ad227ff89a7 ("net: vlan: add 802.1ad support")
Suggested-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230814032301.2804971-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: phy: broadcom: stub c45 read/write for 54810

[ Upstream commit 096516d092d54604d590827d05b1022c8f326639 ]

The 54810 does not support c45. The mmd_phy_indirect accesses return
arbirtary values leading to odd behavior like saying it supports EEE
when it doesn't. We also see that reading/writing these non-existent
MMD registers leads to phy instability in some cases.

Fixes: b14995ac2527 ("net: phy: broadcom: Add BCM54810 PHY entry")
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/1691901708-28650-1-git-send-email-justin.chen@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

netfilter: nft_dynset: disallow object maps

[ Upstream commit 23185c6aed1ffb8fc44087880ba2767aba493779 ]

Do not allow to insert elements from datapath to objects maps.

Fixes: 8aeff920dcc9 ("netfilter: nf_tables: add stateful object reference to set elements")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ipvs: fix racy memcpy in proc_do_sync_threshold

[ Upstream commit 5310760af1d4fbea1452bfc77db5f9a680f7ae47 ]

When two threads run proc_do_sync_threshold() in parallel,
data races could happen between the two memcpy():

Thread-1 Thread-2
memcpy(val, valp, sizeof(val));
memcpy(valp, val, sizeof(val));

This race might mess up the (struct ctl_table *) table->data,
so we add a mutex lock to serialize them.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Link: https://lore.kernel.org/netdev/B6988E90-0A1E-4B85-BF26-2DAF6D482433@gmail.com/
Signed-off-by: Sishuai Gong <sishuai.system@gmail.com>
Acked-by: Simon Horman <horms@kernel.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

netfilter: nf_tables: deactivate catchall elements in next generation

[ Upstream commit 90e5b3462efa37b8bba82d7c4e63683856e188af ]

When flushing, individual set elements are disabled in the next
generation via the ->flush callback.

Catchall elements are not disabled.  This is incorrect and may lead to
double-deactivations of catchall elements which then results in memory
leaks:

WARNING: CPU: 1 PID: 3300 at include/net/netfilter/nf_tables.h:1172 nft_map_deactivate+0x549/0x730
CPU: 1 PID: 3300 Comm: nft Not tainted 6.5.0-rc5+ #60
RIP: 0010:nft_map_deactivate+0x549/0x730
 [..]
 ? nft_map_deactivate+0x549/0x730
 nf_tables_delset+0xb66/0xeb0

(the warn is due to nft_use_dec() detecting underflow).

Fixes: aaa31047a6d2 ("netfilter: nftables: add catch-all set element support")
Reported-by: lonial con <kongln9170@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

netfilter: nf_tables: fix false-positive lockdep splat

[ Upstream commit b9f052dc68f69dac89fe1e24693354c033daa091 ]

->abort invocation may cause splat on debug kernels:

WARNING: suspicious RCU usage
net/netfilter/nft_set_pipapo.c:1697 suspicious rcu_dereference_check() usage!
[..]
rcu_scheduler_active = 2, debug_locks = 1
1 lock held by nft/133554: [..] (nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid
[..]
 lockdep_rcu_suspicious+0x1ad/0x260
 nft_pipapo_abort+0x145/0x180
 __nf_tables_abort+0x5359/0x63d0
 nf_tables_abort+0x24/0x40
 nfnetlink_rcv+0x1a0a/0x22c0
 netlink_unicast+0x73c/0x900
 netlink_sendmsg+0x7f0/0xc20
 ____sys_sendmsg+0x48d/0x760

Transaction mutex is held, so parallel updates are not possible.
Switch to _protected and check mutex is held for lockdep enabled builds.

Fixes: 212ed75dc5fb ("netfilter: nf_tables: integrate pipapo into commit protocol")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

octeon_ep: cancel tx_timeout_task later in remove sequence

[ Upstream commit 28458c80006bb4e993a09fc094094a8578cad292 ]

tx_timeout_task is canceled too early when removing the driver. Nothing
prevents .ndo_tx_timeout from triggering and queuing the work again.

Better cancel it after the netdev is unregistered.
It's harmless for octep_tx_timeout_task to run in the window between the
unregistration and cancelation, because it checks netif_running.

Fixes: 862cd659a6fb ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Link: https://lore.kernel.org/r/20230810150114.107765-3-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: macb: In ZynqMP resume always configure PS GTR for non-wakeup source

[ Upstream commit 6c461e394d11a981c662cc16cebfb05b602e23ba ]

On Zynq UltraScale+ MPSoC ubuntu platform when systemctl issues suspend,
network manager bring down the interface and goes into suspend. When it
wakes up it again enables the interface.

This leads to xilinx-psgtr "PLL lock timeout" on interface bringup, as
the power management controller power down the entire FPD (including
SERDES) if none of the FPD devices are in use and serdes is not
initialized on resume.

$ sudo rtcwake -m no -s 120 -v
$ sudo systemctl suspend  <this does ifconfig eth1 down>
$ ifconfig eth1 up
xilinx-psgtr fd400000.phy: lane 0 (type 10, protocol 5): PLL lock timeout
phy phy-fd400000.phy.0: phy poweron failed --> -110

macb driver is called in this way:
1. macb_close: Stop network interface. In this function, it
   reset MACB IP and disables PHY and network interface.

2. macb_suspend: It is called in kernel suspend flow. But because
   network interface has been disabled(netif_running(ndev) is
   false), it does nothing and returns directly;

3. System goes into suspend state. Some time later, system is
   waken up by RTC wakeup device;

4. macb_resume: It does nothing because network interface has
   been disabled;

5. macb_open: It is called to enable network interface again. ethernet
   interface is initialized in this API but serdes which is power-off
   by PMUFW during FPD-off suspend is not initialized again and so
   we hit GT PLL lock issue on open.

To resolve this PLL timeout issue always do PS GTR initialization
when ethernet device is configured as non-wakeup source.

Fixes: f22bd29ba19a ("net: macb: Fix ZynqMP SGMII non-wakeup source resume failure")
Fixes: 8b73fa3ae02b ("net: macb: Added ZynqMP-specific initialization")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/1691414091-2260697-1-git-send-email-radhey.shyam.pandey@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/panel: simple: Fix AUO G121EAN01 panel timings according to the docs

[ Upstream commit e8470c0a7bcaa82f78ad34282d662dd7bd9630c2 ]

Commit 03e909acd95a ("drm/panel: simple: Add support for AUO G121EAN01.4
panel") added support for this panel model, but the timings it implements
are very different from what the datasheet describes. I checked both the
G121EAN01.0 datasheet from [0] and the G121EAN01.4 one from [1] and they
all have the same timings: for example the LVDS clock typical value is 74.4
MHz, not 66.7 MHz as implemented.

Replace the timings with the ones from the documentation. These timings
have been tested and the clock frequencies verified with an oscilloscope to
ensure they are correct.

Also use struct display_timing instead of struct drm_display_mode in order
to also specify the minimum and maximum values.

[0] https://embedded.avnet.com/product/g121ean01-0/
[1] https://embedded.avnet.com/product/g121ean01-4/

Fixes: 03e909acd95a ("drm/panel: simple: Add support for AUO G121EAN01.4 panel")
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804151239.835216-1-luca.ceresoli@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

selftests: mirror_gre_changes: Tighten up the TTL test match

[ Upstream commit 855067defa36b1f9effad8c219d9a85b655cf500 ]

This test verifies whether the encapsulated packets have the correct
configured TTL. It does so by sending ICMP packets through the test
topology and mirroring them to a gretap netdevice. On a busy host
however, more than just the test ICMP packets may end up flowing
through the topology, get mirrored, and counted. This leads to
potential spurious failures as the test observes much more mirrored
packets than the sent test packets, and assumes a bug.

Fix this by tightening up the mirror action match. Change it from
matchall to a flower classifier matching on ICMP packets specifically.

Fixes: 45315673e0c5 ("selftests: forwarding: Test changes in mirror-to-gretap")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: phy: fix IRQ-based wake-on-lan over hibernate / power off

[ Upstream commit cc941e548bffc01b5816b4edc5cb432a137a58b3 ]

Uwe reports:
"Most PHYs signal WoL using an interrupt. So disabling interrupts [at
shutdown] breaks WoL at least on PHYs covered by the marvell driver."

Discussing with Ioana, the problem which was trying to be solved was:
"The board in question is a LS1021ATSN which has two AR8031 PHYs that
share an interrupt line. In case only one of the PHYs is probed and
there are pending interrupts on the PHY#2 an IRQ storm will happen
since there is no entity to clear the interrupt from PHY#2's registers.
PHY#1's driver will get stuck in .handle_interrupt() indefinitely."

Further confirmation that "the two AR8031 PHYs are on the same MDIO
bus."

With WoL using interrupts to wake the system, in such a case, the
system will begin booting with an asserted interrupt. Thus, we need to
cope with an interrupt asserted during boot.

Solve this instead by disabling interrupts during PHY probe. This will
ensure in Ioana's situation that both PHYs of the same type sharing an
interrupt line on a common MDIO bus will have their interrupt outputs
disabled when the driver probes the device, but before we hook in any
interrupt handlers - thus avoiding the interrupt storm.

A better fix would be for platform firmware to disable the interrupting
devices at source during boot, before control is handed to the kernel.

Fixes: e2f016cf7751 ("net: phy: add a shutdown procedure")
Link: 20230804071757.383971-1-u.kleine-koenig@pengutronix.de
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: pcs: Add missing put_device call in miic_create

[ Upstream commit 829c6524d6729d05a82575dbcc16f99be5ee843d ]

The reference of pdev->dev is taken by of_find_device_by_node, so
it should be released when not need anymore.

Fixes: 7dc54d3b8d91 ("net: pcs: add Renesas MII converter driver")
Signed-off-by: Xiang Yang <xiangyang3@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

virtio-net: set queues after driver_ok

[ Upstream commit 51b813176f098ff61bd2833f627f5319ead098a5 ]

Commit 25266128fe16 ("virtio-net: fix race between set queues and
probe") tries to fix the race between set queues and probe by calling
_virtnet_set_queues() before DRIVER_OK is set. This violates virtio
spec. Fixing this by setting queues after virtio_device_ready().

Note that rtnl needs to be held for userspace requests to change the
number of queues. So we are serialized in this way.

Fixes: 25266128fe16 ("virtio-net: fix race between set queues and probe")
Reported-by: Dragos Tatulea <dtatulea@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

virtio_net: notify MAC address change on device initialization

[ Upstream commit 9f62d221a4b0aa6a8d2a18053a0ca349c025297c ]

In virtnet_probe(), if the device doesn't provide a MAC address the
driver assigns a random one.
As we modify the MAC address we need to notify the device to allow it
to update all the related information.

The problem can be seen with vDPA and mlx5_vdpa driver as it doesn't
assign a MAC address by default. The virtio_net device uses a random
MAC address (we can see it with "ip link"), but we can't ping a net
namespace from another one using the virtio-vdpa device because the
new MAC address has not been provided to the hardware:
RX packets are dropped since they don't go through the receive filters,
TX packets go through unaffected.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 51b813176f09 ("virtio-net: set queues after driver_ok")
Signed-off-by: Sasha Levin <sashal@kernel.org>

xfrm: add forgotten nla_policy for XFRMA_MTIMER_THRESH

[ Upstream commit 5e2424708da7207087934c5c75211e8584d553a0 ]

The previous commit 4e484b3e969b ("xfrm: rate limit SA mapping change
message to user space") added one additional attribute named
XFRMA_MTIMER_THRESH and described its type at compat_policy
(net/xfrm/xfrm_compat.c).

However, the author forgot to also describe the nla_policy at
xfrma_policy (net/xfrm/xfrm_user.c). Hence, this suppose NLA_U32 (4
bytes) value can be faked as empty (0 bytes) by a malicious user, which
leads to 4 bytes overflow read and heap information leak when parsing
nlattrs.

To exploit this, one malicious user can spray the SLUB objects and then
leverage this 4 bytes OOB read to leak the heap data into
x->mapping_maxage (see xfrm_update_ae_params(...)), and leak it to
userspace via copy_to_user_state_extra(...).

The above bug is assigned CVE-2023-3773. To fix it, this commit just
completes the nla_policy description for XFRMA_MTIMER_THRESH, which
enforces the length check and avoids such OOB read.

Fixes: 4e484b3e969b ("xfrm: rate limit SA mapping change message to user space")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

xfrm: add NULL check in xfrm_update_ae_params

[ Upstream commit 00374d9b6d9f932802b55181be9831aa948e5b7c ]

Normally, x->replay_esn and x->preplay_esn should be allocated at
xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the
xfrm_update_ae_params(...) is okay to update them. However, the current
implementation of xfrm_new_ae(...) allows a malicious user to directly
dereference a NULL pointer and crash the kernel like below.

BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4
RIP: 0010:memcpy_orig+0xad/0x140
Code: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c
RSP: 0018:ffff888008f57658 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571
RDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818
R13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000
FS:  00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ? __die+0x1f/0x70
 ? page_fault_oops+0x1e8/0x500
 ? __pfx_is_prefetch.constprop.0+0x10/0x10
 ? __pfx_page_fault_oops+0x10/0x10
 ? _raw_spin_unlock_irqrestore+0x11/0x40
 ? fixup_exception+0x36/0x460
 ? _raw_spin_unlock_irqrestore+0x11/0x40
 ? exc_page_fault+0x5e/0xc0
 ? asm_exc_page_fault+0x26/0x30
 ? xfrm_update_ae_params+0xd1/0x260
 ? memcpy_orig+0xad/0x140
 ? __pfx__raw_spin_lock_bh+0x10/0x10
 xfrm_update_ae_params+0xe7/0x260
 xfrm_new_ae+0x298/0x4e0
 ? __pfx_xfrm_new_ae+0x10/0x10
 ? __pfx_xfrm_new_ae+0x10/0x10
 xfrm_user_rcv_msg+0x25a/0x410
 ? __pfx_xfrm_user_rcv_msg+0x10/0x10
 ? __alloc_skb+0xcf/0x210
 ? stack_trace_save+0x90/0xd0
 ? filter_irq_stacks+0x1c/0x70
 ? __stack_depot_save+0x39/0x4e0
 ? __kasan_slab_free+0x10a/0x190
 ? kmem_cache_free+0x9c/0x340
 ? netlink_recvmsg+0x23c/0x660
 ? sock_recvmsg+0xeb/0xf0
 ? __sys_recvfrom+0x13c/0x1f0
 ? __x64_sys_recvfrom+0x71/0x90
 ? do_syscall_64+0x3f/0x90
 ? entry_SYSCALL_64_after_hwframe+0x72/0xdc
 ? copyout+0x3e/0x50
 netlink_rcv_skb+0xd6/0x210
 ? __pfx_xfrm_user_rcv_msg+0x10/0x10
 ? __pfx_netlink_rcv_skb+0x10/0x10
 ? __pfx_sock_has_perm+0x10/0x10
 ? mutex_lock+0x8d/0xe0
 ? __pfx_mutex_lock+0x10/0x10
 xfrm_netlink_rcv+0x44/0x50
 netlink_unicast+0x36f/0x4c0
 ? __pfx_netlink_unicast+0x10/0x10
 ? netlink_recvmsg+0x500/0x660
 netlink_sendmsg+0x3b7/0x700

This Null-ptr-deref bug is assigned CVE-2023-3772. And this commit
adds additional NULL check in xfrm_update_ae_params to fix the NPD.

Fixes: d8647b79c3b7 ("xfrm: Add user interface for esn and big anti-replay windows")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ip_vti: fix potential slab-use-after-free in decode_session6

[ Upstream commit 6018a266279b1a75143c7c0804dd08a5fc4c3e0b ]

When ip_vti device is set to the qdisc of the sfb type, the cb field
of the sent skb may be modified during enqueuing. Then,
slab-use-after-free may occur when ip_vti device sends IPv6 packets.
As commit f855691975bb ("xfrm6: Fix the nexthdr offset in
_decode_session6.") showed, xfrm_decode_session was originally intended
only for the receive path. IP6CB(skb)->nhoff is not set during
transmission. Therefore, set the cb field in the skb to 0 before
sending packets.

Fixes: f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ip6_vti: fix slab-use-after-free in decode_session6

[ Upstream commit 9fd41f1ba638938c9a1195d09bc6fa3be2712f25 ]

When ipv6_vti device is set to the qdisc of the sfb type, the cb field
of the sent skb may be modified during enqueuing. Then,
slab-use-after-free may occur when ipv6_vti device sends IPv6 packets.

The stack information is as follows:
BUG: KASAN: slab-use-after-free in decode_session6+0x103f/0x1890
Read of size 1 at addr ffff88802e08edc2 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-next-20230707-00001-g84e2cad7f979 #410
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014
Call Trace:
<IRQ>
dump_stack_lvl+0xd9/0x150
print_address_description.constprop.0+0x2c/0x3c0
kasan_report+0x11d/0x130
decode_session6+0x103f/0x1890
__xfrm_decode_session+0x54/0xb0
vti6_tnl_xmit+0x3e6/0x1ee0
dev_hard_start_xmit+0x187/0x700
sch_direct_xmit+0x1a3/0xc30
__qdisc_run+0x510/0x17a0
__dev_queue_xmit+0x2215/0x3b10
neigh_connected_output+0x3c2/0x550
ip6_finish_output2+0x55a/0x1550
ip6_finish_output+0x6b9/0x1270
ip6_output+0x1f1/0x540
ndisc_send_skb+0xa63/0x1890
ndisc_send_rs+0x132/0x6f0
addrconf_rs_timer+0x3f1/0x870
call_timer_fn+0x1a0/0x580
expire_timers+0x29b/0x4b0
run_timer_softirq+0x326/0x910
__do_softirq+0x1d4/0x905
irq_exit_rcu+0xb7/0x120
sysvec_apic_timer_interrupt+0x97/0xc0
</IRQ>
Allocated by task 9176:
kasan_save_stack+0x22/0x40
kasan_set_track+0x25/0x30
__kasan_slab_alloc+0x7f/0x90
kmem_cache_alloc_node+0x1cd/0x410
kmalloc_reserve+0x165/0x270
__alloc_skb+0x129/0x330
netlink_sendmsg+0x9b1/0xe30
sock_sendmsg+0xde/0x190
____sys_sendmsg+0x739/0x920
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf7/0x1c0
do_syscall_64+0x39/0xb0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 9176:
kasan_save_stack+0x22/0x40
kasan_set_track+0x25/0x30
kasan_save_free_info+0x2b/0x40
____kasan_slab_free+0x160/0x1c0
slab_free_freelist_hook+0x11b/0x220
kmem_cache_free+0xf0/0x490
skb_free_head+0x17f/0x1b0
skb_release_data+0x59c/0x850
consume_skb+0xd2/0x170
netlink_unicast+0x54f/0x7f0
netlink_sendmsg+0x926/0xe30
sock_sendmsg+0xde/0x190
____sys_sendmsg+0x739/0x920
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf7/0x1c0
do_syscall_64+0x39/0xb0
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff88802e08ed00
which belongs to the cache skbuff_small_head of size 640
The buggy address is located 194 bytes inside of
freed 640-byte region [ffff88802e08ed00, ffff88802e08ef80)

As commit f855691975bb ("xfrm6: Fix the nexthdr offset in
_decode_session6.") showed, xfrm_decode_session was originally intended
only for the receive path. IP6CB(skb)->nhoff is not set during
transmission. Therefore, set the cb field in the skb to 0 before
sending packets.

Fixes: f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

xfrm: fix slab-use-after-free in decode_session6

[ Upstream commit 53223f2ed1ef5c90dad814daaaefea4e68a933c8 ]

When the xfrm device is set to the qdisc of the sfb type, the cb field
of the sent skb may be modified during enqueuing. Then,
slab-use-after-free may occur when the xfrm device sends IPv6 packets.

The stack information is as follows:
BUG: KASAN: slab-use-after-free in decode_session6+0x103f/0x1890
Read of size 1 at addr ffff8881111458ef by task swapper/3/0
CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.4.0-next-20230707 #409
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014
Call Trace:
<IRQ>
dump_stack_lvl+0xd9/0x150
print_address_description.constprop.0+0x2c/0x3c0
kasan_report+0x11d/0x130
decode_session6+0x103f/0x1890
__xfrm_decode_session+0x54/0xb0
xfrmi_xmit+0x173/0x1ca0
dev_hard_start_xmit+0x187/0x700
sch_direct_xmit+0x1a3/0xc30
__qdisc_run+0x510/0x17a0
__dev_queue_xmit+0x2215/0x3b10
neigh_connected_output+0x3c2/0x550
ip6_finish_output2+0x55a/0x1550
ip6_finish_output+0x6b9/0x1270
ip6_output+0x1f1/0x540
ndisc_send_skb+0xa63/0x1890
ndisc_send_rs+0x132/0x6f0
addrconf_rs_timer+0x3f1/0x870
call_timer_fn+0x1a0/0x580
expire_timers+0x29b/0x4b0
run_timer_softirq+0x326/0x910
__do_softirq+0x1d4/0x905
irq_exit_rcu+0xb7/0x120
sysvec_apic_timer_interrupt+0x97/0xc0
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:intel_idle_hlt+0x23/0x30
Code: 1f 84 00 00 00 00 00 f3 0f 1e fa 41 54 41 89 d4 0f 1f 44 00 00 66 90 0f 1f 44 00 00 0f 00 2d c4 9f ab 00 0f 1f 44 00 00 fb f4 <fa> 44 89 e0 41 5c c3 66 0f 1f 44 00 00 f3 0f 1e fa 41 54 41 89 d4
RSP: 0018:ffffc90000197d78 EFLAGS: 00000246
RAX: 00000000000a83c3 RBX: ffffe8ffffd09c50 RCX: ffffffff8a22d8e5
RDX: 0000000000000001 RSI: ffffffff8d3f8080 RDI: ffffe8ffffd09c50
RBP: ffffffff8d3f8080 R08: 0000000000000001 R09: ffffed1026ba6d9d
R10: ffff888135d36ceb R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff8d3f8100 R14: 0000000000000001 R15: 0000000000000000
cpuidle_enter_state+0xd3/0x6f0
cpuidle_enter+0x4e/0xa0
do_idle+0x2fe/0x3c0
cpu_startup_entry+0x18/0x20
start_secondary+0x200/0x290
secondary_startup_64_no_verify+0x167/0x16b
</TASK>
Allocated by task 939:
kasan_save_stack+0x22/0x40
kasan_set_track+0x25/0x30
__kasan_slab_alloc+0x7f/0x90
kmem_cache_alloc_node+0x1cd/0x410
kmalloc_reserve+0x165/0x270
__alloc_skb+0x129/0x330
inet6_ifa_notify+0x118/0x230
__ipv6_ifa_notify+0x177/0xbe0
addrconf_dad_completed+0x133/0xe00
addrconf_dad_work+0x764/0x1390
process_one_work+0xa32/0x16f0
worker_thread+0x67d/0x10c0
kthread+0x344/0x440
ret_from_fork+0x1f/0x30
The buggy address belongs to the object at ffff888111145800
which belongs to the cache skbuff_small_head of size 640
The buggy address is located 239 bytes inside of
freed 640-byte region [ffff888111145800, ffff888111145a80)

As commit f855691975bb ("xfrm6: Fix the nexthdr offset in
_decode_session6.") showed, xfrm_decode_session was originally intended
only for the receive path. IP6CB(skb)->nhoff is not set during
transmission. Therefore, set the cb field in the skb to 0 before
sending packets.

Fixes: f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: xfrm: Amend XFRMA_SEC_CTX nla_policy structure

[ Upstream commit d1e0e61d617ba17aa516db707aa871387566bbf7 ]

According to all consumers code of attrs[XFRMA_SEC_CTX], like

* verify_sec_ctx_len(), convert to xfrm_user_sec_ctx*
* xfrm_state_construct(), call security_xfrm_state_alloc whose prototype
is int security_xfrm_state_alloc(.., struct xfrm_user_sec_ctx *sec_ctx);
* copy_from_user_sec_ctx(), convert to xfrm_user_sec_ctx *
...

It seems that the expected parsing result for XFRMA_SEC_CTX should be
structure xfrm_user_sec_ctx, and the current xfrm_sec_ctx is confusing
and misleading (Luckily, they happen to have same size 8 bytes).

This commit amend the policy structure to xfrm_user_sec_ctx to avoid
ambiguity.

Fixes: cf5cb79f6946 ("[XFRM] netlink: Establish an attribute policy")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: af_key: fix sadb_x_filter validation

[ Upstream commit 75065a8929069bc93181848818e23f147a73f83a ]

When running xfrm_state_walk_init(), the xfrm_address_filter being used
is okay to have a splen/dplen that equals to sizeof(xfrm_address_t)<<3.
This commit replaces >= to > to make sure the boundary checking is
correct.

Fixes: 37bd22420f85 ("af_key: pfkey_dump needs parameter validation")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net: xfrm: Fix xfrm_address_filter OOB read

[ Upstream commit dfa73c17d55b921e1d4e154976de35317e43a93a ]

We found below OOB crash:

[   44.211730] ==================================================================
[   44.212045] BUG: KASAN: slab-out-of-bounds in memcmp+0x8b/0xb0
[   44.212045] Read of size 8 at addr ffff88800870f320 by task poc.xfrm/97
[   44.212045]
[   44.212045] CPU: 0 PID: 97 Comm: poc.xfrm Not tainted 6.4.0-rc7-00072-gdad9774deaf1-dirty #4
[   44.212045] Call Trace:
[   44.212045]  <TASK>
[   44.212045]  dump_stack_lvl+0x37/0x50
[   44.212045]  print_report+0xcc/0x620
[   44.212045]  ? __virt_addr_valid+0xf3/0x170
[   44.212045]  ? memcmp+0x8b/0xb0
[   44.212045]  kasan_report+0xb2/0xe0
[   44.212045]  ? memcmp+0x8b/0xb0
[   44.212045]  kasan_check_range+0x39/0x1c0
[   44.212045]  memcmp+0x8b/0xb0
[   44.212045]  xfrm_state_walk+0x21c/0x420
[   44.212045]  ? __pfx_dump_one_state+0x10/0x10
[   44.212045]  xfrm_dump_sa+0x1e2/0x290
[   44.212045]  ? __pfx_xfrm_dump_sa+0x10/0x10
[   44.212045]  ? __kernel_text_address+0xd/0x40
[   44.212045]  ? kasan_unpoison+0x27/0x60
[   44.212045]  ? mutex_lock+0x60/0xe0
[   44.212045]  ? __pfx_mutex_lock+0x10/0x10
[   44.212045]  ? kasan_save_stack+0x22/0x50
[   44.212045]  netlink_dump+0x322/0x6c0
[   44.212045]  ? __pfx_netlink_dump+0x10/0x10
[   44.212045]  ? mutex_unlock+0x7f/0xd0
[   44.212045]  ? __pfx_mutex_unlock+0x10/0x10
[   44.212045]  __netlink_dump_start+0x353/0x430
[   44.212045]  xfrm_user_rcv_msg+0x3a4/0x410
[   44.212045]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[   44.212045]  ? __pfx_xfrm_user_rcv_msg+0x10/0x10
[   44.212045]  ? __pfx_xfrm_dump_sa+0x10/0x10
[   44.212045]  ? __pfx_xfrm_dump_sa_done+0x10/0x10
[   44.212045]  ? __stack_depot_save+0x382/0x4e0
[   44.212045]  ? filter_irq_stacks+0x1c/0x70
[   44.212045]  ? kasan_save_stack+0x32/0x50
[   44.212045]  ? kasan_save_stack+0x22/0x50
[   44.212045]  ? kasan_set_track+0x25/0x30
[   44.212045]  ? __kasan_slab_alloc+0x59/0x70
[   44.212045]  ? kmem_cache_alloc_node+0xf7/0x260
[   44.212045]  ? kmalloc_reserve+0xab/0x120
[   44.212045]  ? __alloc_skb+0xcf/0x210
[   44.212045]  ? netlink_sendmsg+0x509/0x700
[   44.212045]  ? sock_sendmsg+0xde/0xe0
[   44.212045]  ? __sys_sendto+0x18d/0x230
[   44.212045]  ? __x64_sys_sendto+0x71/0x90
[   44.212045]  ? do_syscall_64+0x3f/0x90
[   44.212045]  ? entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   44.212045]  ? netlink_sendmsg+0x509/0x700
[   44.212045]  ? sock_sendmsg+0xde/0xe0
[   44.212045]  ? __sys_sendto+0x18d/0x230
[   44.212045]  ? __x64_sys_sendto+0x71/0x90
[   44.212045]  ? do_syscall_64+0x3f/0x90
[   44.212045]  ? entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   44.212045]  ? kasan_save_stack+0x22/0x50
[   44.212045]  ? kasan_set_track+0x25/0x30
[   44.212045]  ? kasan_save_free_info+0x2e/0x50
[   44.212045]  ? __kasan_slab_free+0x10a/0x190
[   44.212045]  ? kmem_cache_free+0x9c/0x340
[   44.212045]  ? netlink_recvmsg+0x23c/0x660
[   44.212045]  ? sock_recvmsg+0xeb/0xf0
[   44.212045]  ? __sys_recvfrom+0x13c/0x1f0
[   44.212045]  ? __x64_sys_recvfrom+0x71/0x90
[   44.212045]  ? do_syscall_64+0x3f/0x90
[   44.212045]  ? entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   44.212045]  ? copyout+0x3e/0x50
[   44.212045]  netlink_rcv_skb+0xd6/0x210
[   44.212045]  ? __pfx_xfrm_user_rcv_msg+0x10/0x10
[   44.212045]  ? __pfx_netlink_rcv_skb+0x10/0x10
[   44.212045]  ? __pfx_sock_has_perm+0x10/0x10
[   44.212045]  ? mutex_lock+0x8d/0xe0
[   44.212045]  ? __pfx_mutex_lock+0x10/0x10
[   44.212045]  xfrm_netlink_rcv+0x44/0x50
[   44.212045]  netlink_unicast+0x36f/0x4c0
[   44.212045]  ? __pfx_netlink_unicast+0x10/0x10
[   44.212045]  ? netlink_recvmsg+0x500/0x660
[   44.212045]  netlink_sendmsg+0x3b7/0x700
[   44.212045]  ? __pfx_netlink_sendmsg+0x10/0x10
[   44.212045]  ? __pfx_netlink_sendmsg+0x10/0x10
[   44.212045]  sock_sendmsg+0xde/0xe0
[   44.212045]  __sys_sendto+0x18d/0x230
[   44.212045]  ? __pfx___sys_sendto+0x10/0x10
[   44.212045]  ? rcu_core+0x44a/0xe10
[   44.212045]  ? __rseq_handle_notify_resume+0x45b/0x740
[   44.212045]  ? _raw_spin_lock_irq+0x81/0xe0
[   44.212045]  ? __pfx___rseq_handle_notify_resume+0x10/0x10
[   44.212045]  ? __pfx_restore_fpregs_from_fpstate+0x10/0x10
[   44.212045]  ? __pfx_blkcg_maybe_throttle_current+0x10/0x10
[   44.212045]  ? __pfx_task_work_run+0x10/0x10
[   44.212045]  __x64_sys_sendto+0x71/0x90
[   44.212045]  do_syscall_64+0x3f/0x90
[   44.212045]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   44.212045] RIP: 0033:0x44b7da
[   44.212045] RSP: 002b:00007ffdc8838548 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.212045] RAX: ffffffffffffffda RBX: 00007ffdc8839978 RCX: 000000000044b7da
[   44.212045] RDX: 0000000000000038 RSI: 00007ffdc8838770 RDI: 0000000000000003
[   44.212045] RBP: 00007ffdc88385b0 R08: 00007ffdc883858c R09: 000000000000000c
[   44.212045] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[   44.212045] R13: 00007ffdc8839968 R14: 00000000004c37d0 R15: 0000000000000001
[   44.212045]  </TASK>
[   44.212045]
[   44.212045] Allocated by task 97:
[   44.212045]  kasan_save_stack+0x22/0x50
[   44.212045]  kasan_set_track+0x25/0x30
[   44.212045]  __kasan_kmalloc+0x7f/0x90
[   44.212045]  __kmalloc_node_track_caller+0x5b/0x140
[   44.212045]  kmemdup+0x21/0x50
[   44.212045]  xfrm_dump_sa+0x17d/0x290
[   44.212045]  netlink_dump+0x322/0x6c0
[   44.212045]  __netlink_dump_start+0x353/0x430
[   44.212045]  xfrm_user_rcv_msg+0x3a4/0x410
[   44.212045]  netlink_rcv_skb+0xd6/0x210
[   44.212045]  xfrm_netlink_rcv+0x44/0x50
[   44.212045]  netlink_unicast+0x36f/0x4c0
[   44.212045]  netlink_sendmsg+0x3b7/0x700
[   44.212045]  sock_sendmsg+0xde/0xe0
[   44.212045]  __sys_sendto+0x18d/0x230
[   44.212045]  __x64_sys_sendto+0x71/0x90
[   44.212045]  do_syscall_64+0x3f/0x90
[   44.212045]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   44.212045]
[   44.212045] The buggy address belongs to the object at ffff88800870f300
[   44.212045]  which belongs to the cache kmalloc-64 of size 64
[   44.212045] The buggy address is located 32 bytes inside of
[   44.212045]  allocated 36-byte region [ffff88800870f300, ffff88800870f324)
[   44.212045]
[   44.212045] The buggy address belongs to the physical page:
[   44.212045] page:00000000e4de16ee refcount:1 mapcount:0 mapping:000000000 ...
[   44.212045] flags: 0x100000000000200(slab|node=0|zone=1)
[   44.212045] page_type: 0xffffffff()
[   44.212045] raw: 0100000000000200 ffff888004c41640 dead000000000122 0000000000000000
[   44.212045] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
[   44.212045] page dumped because: kasan: bad access detected
[   44.212045]
[   44.212045] Memory state around the buggy address:
[   44.212045]  ffff88800870f200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   44.212045]  ffff88800870f280: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
[   44.212045] >ffff88800870f300: 00 00 00 00 04 fc fc fc fc fc fc fc fc fc fc fc
[   44.212045]                                ^
[   44.212045]  ffff88800870f380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   44.212045]  ffff88800870f400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   44.212045] ==================================================================

By investigating the code, we find the root cause of this OOB is the lack
of checks in xfrm_dump_sa(). The buggy code allows a malicious user to pass
arbitrary value of filter->splen/dplen. Hence, with crafted xfrm states,
the attacker can achieve 8 bytes heap OOB read, which causes info leak.

  if (attrs[XFRMA_ADDRESS_FILTER]) {
    filter = kmemdup(nla_data(attrs[XFRMA_ADDRESS_FILTER]),
        sizeof(*filter), GFP_KERNEL);
    if (filter == NULL)
      return -ENOMEM;
    // NO MORE CHECKS HERE !!!
  }

This patch fixes the OOB by adding necessary boundary checks, just like
the code in pfkey_dump() function.

Fixes: d3623099d350 ("ipsec: add support of limited SA dump")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

i2c: designware: Handle invalid SMBus block data response length value

commit 69f035c480d76f12bf061148ccfd578e1099e5fc upstream.

In the I2C_FUNC_SMBUS_BLOCK_DATA case, the invalid length byte value
(outside of 1-32) of the SMBus block data response from the Slave device
is not correctly handled by the I2C Designware driver.

In case IC_EMPTYFIFO_HOLD_MASTER_EN==1, which cannot be detected
from the registers, the Master can be disabled only if the STOP bit
is set. Without STOP bit set, the Master remains active, holding the bus
until receiving a block data response length. This hangs the bus and
is unrecoverable.

Avoid this by issuing another dump read to reach the stop condition when
an invalid length byte is received.

Cc: stable@vger.kernel.org
Signed-off-by: Tam Nguyen <tamnguyenchi@os.amperecomputing.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20230726080001.337353-3-tamnguyenchi@os.amperecomputing.com
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

i2c: designware: Correct length byte validation logic

commit 49d4db3953cb9004ff94efc0c176e026c820af5a upstream.

Commit 0daede80f870 ("i2c: designware: Convert driver to using regmap API")
changes the logic to validate the whole 32-bit return value of
DW_IC_DATA_CMD register instead of 8-bit LSB without reason.

Later, commit f53f15ba5a85 ("i2c: designware: Get right data length"),
introduced partial fix but not enough because the "tmp > 0" still test
tmp as 32-bit value and is wrong in case the IC_DATA_CMD[11] is set.

Revert the logic to just before commit 0daede80f870
("i2c: designware: Convert driver to using regmap API").

Fixes: f53f15ba5a85 ("i2c: designware: Get right data length")
Fixes: 0daede80f870 ("i2c: designware: Convert driver to using regmap API")
Cc: stable@vger.kernel.org
Signed-off-by: Tam Nguyen <tamnguyenchi@os.amperecomputing.com>
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20230726080001.337353-2-tamnguyenchi@os.amperecomputing.com
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

btrfs: fix BUG_ON condition in btrfs_cancel_balance

commit 29eefa6d0d07e185f7bfe9576f91e6dba98189c2 upstream.

Pausing and canceling balance can race to interrupt balance lead to BUG_ON
panic in btrfs_cancel_balance. The BUG_ON condition in btrfs_cancel_balance
does not take this race scenario into account.

However, the race condition has no other side effects. We can fix that.

Reproducing it with panic trace like this:

  kernel BUG at fs/btrfs/volumes.c:4618!
  RIP: 0010:btrfs_cancel_balance+0x5cf/0x6a0
  Call Trace:
   <TASK>
   ? do_nanosleep+0x60/0x120
   ? hrtimer_nanosleep+0xb7/0x1a0
   ? sched_core_clone_cookie+0x70/0x70
   btrfs_ioctl_balance_ctl+0x55/0x70
   btrfs_ioctl+0xa46/0xd20
   __x64_sys_ioctl+0x7d/0xa0
   do_syscall_64+0x38/0x80
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

  Race scenario as follows:
  > mutex_unlock(&fs_info->balance_mutex);
  > --------------------
  > .......issue pause and cancel req in another thread
  > --------------------
  > ret = __btrfs_balance(fs_info);
  >
  > mutex_lock(&fs_info->balance_mutex);
  > if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req)) {
  >         btrfs_info(fs_info, "balance: paused");
  >         btrfs_exclop_balance(fs_info, BTRFS_EXCLOP_BALANCE_PAUSED);
  > }

CC: stable@vger.kernel.org # 4.19+
Signed-off-by: xiaoshoukui <xiaoshoukui@ruijie.com.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

btrfs: fix incorrect splitting in btrfs_drop_extent_map_range

commit c962098ca4af146f2625ed64399926a098752c9c upstream.

In production we were seeing a variety of WARN_ON()'s in the extent_map
code, specifically in btrfs_drop_extent_map_range() when we have to call
add_extent_mapping() for our second split.

Consider the following extent map layout

PINNED
[0 16K)  [32K, 48K)

and then we call btrfs_drop_extent_map_range for [0, 36K), with
skip_pinned == true.  The initial loop will have

start = 0
end = 36K
len = 36K

we will find the [0, 16k) extent, but since we are pinned we will skip
it, which has this code

start = em_end;
if (end != (u64)-1)
len = start + len - em_end;

em_end here is 16K, so now the values are

start = 16K
len = 16K + 36K - 16K = 36K

len should instead be 20K.  This is a problem when we find the next
extent at [32K, 48K), we need to split this extent to leave [36K, 48k),
however the code for the split looks like this

split->start = start + len;
split->len = em_end - (start + len);

In this case we have

em_end = 48K
split->start = 16K + 36K       // this should be 16K + 20K
split->len = 48K - (16K + 36K) // this overflows as 16K + 36K is 52K

and now we have an invalid extent_map in the tree that potentially
overlaps other entries in the extent map.  Even in the non-overlapping
case we will have split->start set improperly, which will cause problems
with any block related calculations.

We don't actually need len in this loop, we can simply use end as our
end point, and only adjust start up when we find a pinned extent we need
to skip.

Adjust the logic to do this, which keeps us from inserting an invalid
extent map.

We only skip_pinned in the relocation case, so this is relatively rare,
except in the case where you are running relocation a lot, which can
happen with auto relocation on.

Fixes: 55ef68990029 ("Btrfs: Fix btrfs_drop_extent_cache for skip pinned case")
CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tty: serial: fsl_lpuart: Clear the error flags by writing 1 for lpuart32 platforms

commit 282069845af388b08d622ad192b831dcd0549c62 upstream.

Do not read the data register to clear the error flags for lpuart32
platforms, the additional read may cause the receive FIFO underflow
since the DMA has already read the data register.
Actually all lpuart32 platforms support write 1 to clear those error
bits, let's use this method to better clear the error flags.

Fixes: 42b68768e51b ("serial: fsl_lpuart: DMA support for 32-bit variant")
Cc: stable <stable@kernel.org>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20230801022304.24251-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tty: n_gsm: fix the UAF caused by race condition in gsm_cleanup_mux

commit 3c4f8333b582487a2d1e02171f1465531cde53e3 upstream.

In commit 9b9c8195f3f0 ("tty: n_gsm: fix UAF in gsm_cleanup_mux"), the UAF
problem is not completely fixed. There is a race condition in
gsm_cleanup_mux(), which caused this UAF.

The UAF problem is triggered by the following race:
task[5046]                     task[5054]
-----------------------        -----------------------
gsm_cleanup_mux();
dlci = gsm->dlci[0];
mutex_lock(&gsm->mutex);
                               gsm_cleanup_mux();
       dlci = gsm->dlci[0]; //Didn't take the lock
gsm_dlci_release(gsm->dlci[i]);
gsm->dlci[i] = NULL;
mutex_unlock(&gsm->mutex);
                               mutex_lock(&gsm->mutex);
       dlci->dead = true; //UAF

Fix it by assigning values after mutex_lock().

Link: https://syzkaller.appspot.com/text?tag=CrashReport&x=176188b5a80000
Cc: stable <stable@kernel.org>
Fixes: 9b9c8195f3f0 ("tty: n_gsm: fix UAF in gsm_cleanup_mux")
Fixes: aa371e96f05d ("tty: n_gsm: fix restart handling via CLD command")
Signed-off-by: Yi Yang <yiyang13@huawei.com>
Co-developed-by: Qiumiao Zhang <zhangqiumiao1@huawei.com>
Signed-off-by: Qiumiao Zhang <zhangqiumiao1@huawei.com>
Link: https://lore.kernel.org/r/20230811031121.153237-1-yiyang13@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

vdpa: Enable strict validation for netlinks ops

commit f46c1e1620c6bbc9aad5693082efd1b80822e97c upstream.

The previous patches added the missing nla policies that were required for
validation to work.

Now strict validation on netlink ops can be enabled. This patch does it.

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Cc: stable@vger.kernel.org
Message-Id: <20230727175757.73988-9-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check

commit 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f upstream.

The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa max vqp attr to avoid
such bugs.

Fixes: ad69dd0bf26b ("vdpa: Introduce query of device config layout")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Cc: stable@vger.kernel.org
Message-Id: <20230727175757.73988-7-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check

commit b3003e1b54e057f5f3124e437b80c3bef26ed3fe upstream.

The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa queue index attr to avoid
such bugs.

Fixes: 13b00b135665 ("vdpa: Add support for querying vendor statistics")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Cc: stable@vger.kernelorg
Message-Id: <20230727175757.73988-5-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

vdpa: Add features attr to vdpa_nl_policy for nlattr length check

commit 79c8651587504ba263d2fd67fd4406240fb21f69 upstream.

The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa features attr to avoid
such bugs.

Fixes: 90fea5a800c3 ("vdpa: device feature provisioning")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Cc: stable@vger.kernel.org
Message-Id: <20230727175757.73988-3-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

powerpc/rtas_flash: allow user copy to flash block cache objects

commit 4f3175979e62de3b929bfa54a0db4b87d36257a7 upstream.

With hardened usercopy enabled (CONFIG_HARDENED_USERCOPY=y), using the
/proc/powerpc/rtas/firmware_update interface to prepare a system
firmware update yields a BUG():

  kernel BUG at mm/usercopy.c:102!
  Oops: Exception in kernel mode, sig: 5 [#1]
  LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
  Modules linked in:
  CPU: 0 PID: 2232 Comm: dd Not tainted 6.5.0-rc3+ #2
  Hardware name: IBM,8408-E8E POWER8E (raw) 0x4b0201 0xf000004 of:IBM,FW860.50 (SV860_146) hv:phyp pSeries
  NIP:  c0000000005991d0 LR: c0000000005991cc CTR: 0000000000000000
  REGS: c0000000148c76a0 TRAP: 0700   Not tainted  (6.5.0-rc3+)
  MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR: 24002242  XER: 0000000c
  CFAR: c0000000001fbd34 IRQMASK: 0
  [ ... GPRs omitted ... ]
  NIP usercopy_abort+0xa0/0xb0
  LR  usercopy_abort+0x9c/0xb0
  Call Trace:
    usercopy_abort+0x9c/0xb0 (unreliable)
    __check_heap_object+0x1b4/0x1d0
    __check_object_size+0x2d0/0x380
    rtas_flash_write+0xe4/0x250
    proc_reg_write+0xfc/0x160
    vfs_write+0xfc/0x4e0
    ksys_write+0x90/0x160
    system_call_exception+0x178/0x320
    system_call_common+0x160/0x2c4

The blocks of the firmware image are copied directly from user memory
to objects allocated from flash_block_cache, so flash_block_cache must
be created using kmem_cache_create_usercopy() to mark it safe for user
access.

Fixes: 6d07d1cd300f ("usercopy: Restrict non-usercopy caches to size 0")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
[mpe: Trim and indent oops]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230810-rtas-flash-vs-hardened-usercopy-v2-1-dcf63793a938@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fbdev: mmp: fix value check in mmphw_probe()

commit 0872b2c0abc0e84ac82472959c8e14e35277549c upstream.

in mmphw_probe(), check the return value of clk_prepare_enable()
and return the error code if clk_prepare_enable() returns an
unexpected value.

Fixes: d63028c38905 ("video: mmp display controller support")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

i2c: tegra: Fix i2c-tegra DMA config option processing

commit 27ec43c77b5db780a56fc3a6d6de6bf2f74614f7 upstream.

Tegra processors prior to Tegra186 used APB DMA for I2C requiring
CONFIG_TEGRA20_APB_DMA=y while Tegra186 and later use GPC DMA requiring
CONFIG_TEGRA186_GPC_DMA=y.

The check for if the processor uses APB DMA is inverted and so the wrong
DMA config options are checked.

This means if CONFIG_TEGRA20_APB_DMA=y but CONFIG_TEGRA186_GPC_DMA=n
with a Tegra186 or later processor the driver will incorrectly think DMA is
enabled and attempt to request DMA channels that will never be availible,
leaving the driver in a perpetual EPROBE_DEFER state.

Fixes: 48cb6356fae1 ("i2c: tegra: Add GPCDMA support")
Signed-off-by: Parker Newman <pnewman@connecttech.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Acked-by: Akhil R <akhilrajeev@nvidia.com>
Link: https://lore.kernel.org/r/fcfcf9b3-c8c4-9b34-2ff8-cd60a3d490bd@connecttech.com
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

i2c: hisi: Only handle the interrupt of the driver's transfer

commit fff67c1b17ee093947bdcbac6f64d072e644159a upstream.

The controller may be shared with other port, for example the firmware.
Handle the interrupt from other sources will cause crash since some
data are not initialized. So only handle the interrupt of the driver's
transfer and discard others.

Fixes: d62fbdb99a85 ("i2c: add support for HiSilicon I2C controller")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20230801124625.63587-1-yangyicong@huawei.com
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

i2c: bcm-iproc: Fix bcm_iproc_i2c_isr deadlock issue

commit 4caf4cb1eaed469742ef719f2cc024b1ec3fa9e6 upstream.

iproc_i2c_rd_reg() and iproc_i2c_wr_reg() are called from both
interrupt context (e.g. bcm_iproc_i2c_isr) and process context
(e.g. bcm_iproc_i2c_suspend). Therefore, interrupts should be
disabled to avoid potential deadlock. To prevent this scenario,
use spin_lock_irqsave().

Fixes: 9a1038728037 ("i2c: iproc: add NIC I2C support")
Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Acked-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

cifs: fix potential oops in cifs_oplock_break

[ Upstream commit e8f5f849ffce24490eb9449e98312b66c0dba76f ]

With deferred close we can have closes that race with lease breaks,
and so with the current checks for whether to send the lease response,
oplock_response(), this can mean that an unmount (kill_sb) can occur
just before we were checking if the tcon->ses is valid.  See below:

[Fri Aug  4 04:12:50 2023] RIP: 0010:cifs_oplock_break+0x1f7/0x5b0 [cifs]
[Fri Aug  4 04:12:50 2023] Code: 7d a8 48 8b 7d c0 c0 e9 02 48 89 45 b8 41 89 cf e8 3e f5 ff ff 4c 89 f7 41 83 e7 01 e8 82 b3 03 f2 49 8b 45 50 48 85 c0 74 5e <48> 83 78 60 00 74 57 45 84 ff 75 52 48 8b 43 98 48 83 eb 68 48 39
[Fri Aug  4 04:12:50 2023] RSP: 0018:ffffb30607ddbdf8 EFLAGS: 00010206
[Fri Aug  4 04:12:50 2023] RAX: 632d223d32612022 RBX: ffff97136944b1e0 RCX: 0000000080100009
[Fri Aug  4 04:12:50 2023] RDX: 0000000000000001 RSI: 0000000080100009 RDI: ffff97136944b188
[Fri Aug  4 04:12:50 2023] RBP: ffffb30607ddbe58 R08: 0000000000000001 R09: ffffffffc08e0900
[Fri Aug  4 04:12:50 2023] R10: 0000000000000001 R11: 000000000000000f R12: ffff97136944b138
[Fri Aug  4 04:12:50 2023] R13: ffff97149147c000 R14: ffff97136944b188 R15: 0000000000000000
[Fri Aug  4 04:12:50 2023] FS:  0000000000000000(0000) GS:ffff9714f7c00000(0000) knlGS:0000000000000000
[Fri Aug  4 04:12:50 2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Aug  4 04:12:50 2023] CR2: 00007fd8de9c7590 CR3: 000000011228e000 CR4: 0000000000350ef0
[Fri Aug  4 04:12:50 2023] Call Trace:
[Fri Aug  4 04:12:50 2023]  <TASK>
[Fri Aug  4 04:12:50 2023]  process_one_work+0x225/0x3d0
[Fri Aug  4 04:12:50 2023]  worker_thread+0x4d/0x3e0
[Fri Aug  4 04:12:50 2023]  ? process_one_work+0x3d0/0x3d0
[Fri Aug  4 04:12:50 2023]  kthread+0x12a/0x150
[Fri Aug  4 04:12:50 2023]  ? set_kthread_struct+0x50/0x50
[Fri Aug  4 04:12:50 2023]  ret_from_fork+0x22/0x30
[Fri Aug  4 04:12:50 2023]  </TASK>

To fix this change the ordering of the checks before sending the oplock_response
to first check if the openFileList is empty.

Fixes: da787d5b7498 ("SMB3: Do not send lease break acknowledgment if all file handles have been closed")
Suggested-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

vdpa/mlx5: Delete control vq iotlb in destroy_mr only when necessary

[ Upstream commit ad03a0f44cdb97b46e5c84ed353dac9b8ae2c276 ]

mlx5_vdpa_destroy_mr can be called from .set_map with data ASID after
the control virtqueue ASID iotlb has been populated. The control vq
iotlb must not be cleared, since it will not be populated again.

So call the ASID aware destroy function which makes sure that the
right vq resource is destroyed.

Fixes: 8fcd20c30704 ("vdpa/mlx5: Support different address spaces for control and data")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Message-Id: <20230802171231.11001-5-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

vdpa/mlx5: Fix mr->initialized semantics

[ Upstream commit 9ee811009ad8f87982b69e61d07447d12233ad01 ]

The mr->initialized flag is shared between the control vq and data vq
part of the mr init/uninit. But if the control vq and data vq get placed
in different ASIDs, it can happen that initializing the control vq will
prevent the data vq mr from being initialized.

This patch consolidates the control and data vq init parts into their
own init functions. The mr->initialized will now be used for the data vq
only. The control vq currently doesn't need a flag.

The uninitializing part is also taken care of: mlx5_vdpa_destroy_mr got
split into data and control vq functions which are now also ASID aware.

Fixes: 8fcd20c30704 ("vdpa/mlx5: Support different address spaces for control and data")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Message-Id: <20230802171231.11001-3-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

vduse: Use proper spinlock for IRQ injection

[ Upstream commit 7ca26efb09a1543fddb29308ea3b63b66cb5d3ee ]

The IRQ injection work used spin_lock_irq() to protect the
scheduling of the softirq, but spin_lock_bh() should be
used.

With spin_lock_irq(), we noticed delay of more than 6
seconds between the time a NAPI polling work is scheduled
and the time it is executed.

Fixes: c8a6153b6c59 ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Cc: xieyongji@bytedance.com
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20230705114505.63274-1-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

virtio-mmio: don't break lifecycle of vm_dev

[ Upstream commit 55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a ]

vm_dev has a separate lifecycle because it has a 'struct device'
embedded. Thus, having a release callback for it is correct.

Allocating the vm_dev struct with devres totally breaks this protection,
though. Instead of waiting for the vm_dev release callback, the memory
is freed when the platform_device is removed. Resulting in a
use-after-free when finally the callback is to be called.

To easily see the problem, compile the kernel with
CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs.

The fix is easy, don't use devres in this case.

Found during my research about object lifetime problems.

Fixes: 7eb781b1bbb7 ("virtio_mmio: add cleanup for virtio_mmio_probe")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Message-Id: <20230629120526.7184-1-wsa+renesas@sang-engineering.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

btrfs: fix use-after-free of new block group that became unused

[ Upstream commit 0657b20c5a76c938612f8409735a8830d257866e ]

If a task creates a new block group and that block group becomes unused
before we finish its creation, at btrfs_create_pending_block_groups(),
then when btrfs_mark_bg_unused() is called against the block group, we
assume that the block group is currently in the list of block groups to
reclaim, and we move it out of the list of new block groups and into the
list of unused block groups. This has two consequences:

1) We move it out of the list of new block groups associated to the
   current transaction. So the block group creation is not finished and
   if we attempt to delete the bg because it's unused, we will not find
   the block group item in the extent tree (or the new block group tree),
   its device extent items in the device tree etc, resulting in the
   deletion to fail due to the missing items;

2) We don't increment the reference count on the block group when we
   move it to the list of unused block groups, because we assumed the
   block group was on the list of block groups to reclaim, and in that
   case it already has the correct reference count. However the block
   group was on the list of new block groups, in which case no extra
   reference was taken because it's local to the current task. This
   later results in doing an extra reference count decrement when
   removing the block group from the unused list, eventually leading the
   reference count to 0.

This second case was caught when running generic/297 from fstests, which
produced the following assertion failure and stack trace:

  [589.559] assertion failed: refcount_read(&block_group->refs) == 1, in fs/btrfs/block-group.c:4299
  [589.559] ------------[ cut here ]------------
  [589.559] kernel BUG at fs/btrfs/block-group.c:4299!
  [589.560] invalid opcode: 0000 [#1] PREEMPT SMP PTI
  [589.560] CPU: 8 PID: 2819134 Comm: umount Tainted: G        W          6.4.0-rc6-btrfs-next-134+ #1
  [589.560] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014
  [589.560] RIP: 0010:btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.561] Code: 68 62 da c0 (...)
  [589.561] RSP: 0018:ffffa55a8c3b3d98 EFLAGS: 00010246
  [589.561] RAX: 0000000000000058 RBX: ffff8f030d7f2000 RCX: 0000000000000000
  [589.562] RDX: 0000000000000000 RSI: ffffffff953f0878 RDI: 00000000ffffffff
  [589.562] RBP: ffff8f030d7f2088 R08: 0000000000000000 R09: ffffa55a8c3b3c50
  [589.562] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8f05850b4c00
  [589.562] R13: ffff8f030d7f2090 R14: ffff8f05850b4cd8 R15: dead000000000100
  [589.563] FS:  00007f497fd2e840(0000) GS:ffff8f09dfc00000(0000) knlGS:0000000000000000
  [589.563] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [589.563] CR2: 00007f497ff8ec10 CR3: 0000000271472006 CR4: 0000000000370ee0
  [589.563] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  [589.564] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  [589.564] Call Trace:
  [589.564]  <TASK>
  [589.565]  ? __die_body+0x1b/0x60
  [589.565]  ? die+0x39/0x60
  [589.565]  ? do_trap+0xeb/0x110
  [589.565]  ? btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.566]  ? do_error_trap+0x6a/0x90
  [589.566]  ? btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.566]  ? exc_invalid_op+0x4e/0x70
  [589.566]  ? btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.567]  ? asm_exc_invalid_op+0x16/0x20
  [589.567]  ? btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.567]  ? btrfs_free_block_groups+0x449/0x4a0 [btrfs]
  [589.567]  close_ctree+0x35d/0x560 [btrfs]
  [589.568]  ? fsnotify_sb_delete+0x13e/0x1d0
  [589.568]  ? dispose_list+0x3a/0x50
  [589.568]  ? evict_inodes+0x151/0x1a0
  [589.568]  generic_shutdown_super+0x73/0x1a0
  [589.569]  kill_anon_super+0x14/0x30
  [589.569]  btrfs_kill_super+0x12/0x20 [btrfs]
  [589.569]  deactivate_locked_super+0x2e/0x70
  [589.569]  cleanup_mnt+0x104/0x160
  [589.570]  task_work_run+0x56/0x90
  [589.570]  exit_to_user_mode_prepare+0x160/0x170
  [589.570]  syscall_exit_to_user_mode+0x22/0x50
  [589.570]  ? __x64_sys_umount+0x12/0x20
  [589.571]  do_syscall_64+0x48/0x90
  [589.571]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
  [589.571] RIP: 0033:0x7f497ff0a567
  [589.571] Code: af 98 0e (...)
  [589.572] RSP: 002b:00007ffc98347358 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
  [589.572] RAX: 0000000000000000 RBX: 00007f49800b8264 RCX: 00007f497ff0a567
  [589.572] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000557f558abfa0
  [589.573] RBP: 0000557f558a6ba0 R08: 0000000000000000 R09: 00007ffc98346100
  [589.573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
  [589.573] R13: 0000557f558abfa0 R14: 0000557f558a6cb0 R15: 0000557f558a6dd0
  [589.573]  </TASK>
  [589.574] Modules linked in: dm_snapshot dm_thin_pool (...)
  [589.576] ---[ end trace 0000000000000000 ]---

Fix this by adding a runtime flag to the block group to tell that the
block group is still in the list of new block groups, and therefore it
should not be moved to the list of unused block groups, at
btrfs_mark_bg_unused(), until the flag is cleared, when we finish the
creation of the block group at btrfs_create_pending_block_groups().

Fixes: a9f189716cf1 ("btrfs: move out now unused BG from the reclaim list")
CC: stable@vger.kernel.org # 5.15+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

btrfs: convert btrfs_block_group::seq_zone to runtime flag

[ Upstream commit 961f5b8bf48a463ac5fe5b13143426d79eb41817 ]

In zoned mode the sequential status of zone can be also tracked in the
runtime flags of block group.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Stable-dep-of: 0657b20c5a76 ("btrfs: fix use-after-free of new block group that became unused")
Signed-off-by: Sasha Levin <sashal@kernel.org>

btrfs: convert btrfs_block_group::needs_free_space to runtime flag

[ Upstream commit 0d7764ff58b4b45c39eb03f2c74a819c1a88fa7b ]

We already have flags in block group to track various status bits,
convert needs_free_space as well and reduce size of btrfs_block_group.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Stable-dep-of: 0657b20c5a76 ("btrfs: fix use-after-free of new block group that became unused")
Signed-off-by: Sasha Levin <sashal@kernel.org>

btrfs: move out now unused BG from the reclaim list

[ Upstream commit a9f189716cf15913c453299d72f69c51a9b0f86b ]

An unused block group is easy to remove to free up space and should be
reclaimed fast. Such block group can often already be a target of the
reclaim process. As we check list_empty(&bg->bg_list), we keep it in the
reclaim list. That block group is never reclaimed until the file system
is filled e.g. up to 75%.

Instead, we can move unused block group to the unused list and delete it
fast.

Fixes: 18bb8bbf13c1 ("btrfs: zoned: automatically reclaim zones")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

video/aperture: Only remove sysfb on the default vga pci device

[ Upstream commit 5ae3716cfdcd286268133867f67d0803847acefc ]

Instead of calling aperture_remove_conflicting_devices() to remove the
conflicting devices, just call to aperture_detach_devices() to detach
the device that matches the same PCI BAR / aperture range. Since the
former is just a wrapper of the latter plus a sysfb_disable() call,
and now that's done in this function but only for the primary devices.

This fixes a regression introduced by commit ee7a69aa38d8 ("fbdev:
Disable sysfb device registration when removing conflicting FBs"),
where we remove the sysfb when loading a driver for an unrelated pci
device, resulting in the user losing their efifb console or similar.

Note that in practice this only is a problem with the nvidia blob,
because that's the only gpu driver people might install which does not
come with an fbdev driver of it's own. For everyone else the real gpu
driver will restore a working console.

Also note that in the referenced bug there's confusion that this same
bug also happens on amdgpu. But that was just another amdgpu specific
regression, which just happened to happen at roughly the same time and
with the same user-observable symptoms. That bug is fixed now, see
https://bugzilla.kernel.org/show_bug.cgi?id=216331#c15

Note that we should not have any such issues on non-pci multi-gpu
issues, because I could only find two such cases:
- SoC with some external panel over spi or similar. These panel
  drivers do not use drm_aperture_remove_conflicting_framebuffers(),
  so no problem.
- vga+mga, which is a direct console driver and entirely bypasses all
  this.

For the above reasons the cc: stable is just notionally, this patch
will need a backport and that's up to nvidia if they care enough.

v2:
- Explain a bit better why other multi-gpu that aren't pci shouldn't
  have any issues with making all this fully pci specific.

v3
- polish commit message (Javier)

v4:
- Fix commit message style (i.e., commit 1234 ("..."))
- fix Daniel's S-o-b address

v5:
- add back an S-o-b tag with Daniel's Intel address

Fixes: ee7a69aa38d8 ("fbdev: Disable sysfb device registration when removing conflicting FBs")
Tested-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216303#c28
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Aaron Plattner <aplattner@nvidia.com>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Helge Deller <deller@gmx.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org> # v5.19+ (if someone else does the backport)
Link: https://patchwork.freedesktop.org/patch/msgid/20230406132109.32050-8-tzimmermann@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

fbdev/hyperv-fb: Do not set struct fb_info.apertures

[ Upstream commit 81d2393485f0990cf6566b0c9e0697c199f68ae5 ]

Generic fbdev drivers use the apertures field in struct fb_info to
control ownership of the framebuffer memory and graphics device. Do
not set the values in hyperv-fb.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219160516.23436-9-tzimmermann@suse.de
Stable-dep-of: 5ae3716cfdcd ("video/aperture: Only remove sysfb on the default vga pci device")
Signed-off-by: Sasha Levin <sashal@kernel.org>

ARM: dts: nxp/imx6sll: fix wrong property name in usbphy node

[ Upstream commit ee70b908f77a9d8f689dea986f09e6d7dc481934 ]

Property name "phy-3p0-supply" is used instead of "phy-reg_3p0-supply".

Fixes: 9f30b6b1a957 ("ARM: dts: imx: Add basic dtsi file for imx6sll")
cc: <stable@vger.kernel.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

KVM: arm64: vgic-v4: Make the doorbell request robust w.r.t preemption

[ Upstream commit b321c31c9b7b309dcde5e8854b741c8e6a9a05f0 ]

Xiang reports that VMs occasionally fail to boot on GICv4.1 systems when
running a preemptible kernel, as it is possible that a vCPU is blocked
without requesting a doorbell interrupt.

The issue is that any preemption that occurs between vgic_v4_put() and
schedule() on the block path will mark the vPE as nonresident and *not*
request a doorbell irq. This occurs because when the vcpu thread is
resumed on its way to block, vcpu_load() will make the vPE resident
again. Once the vcpu actually blocks, we don't request a doorbell
anymore, and the vcpu won't be woken up on interrupt delivery.

Fix it by tracking that we're entering WFI, and key the doorbell
request on that flag. This allows us not to make the vPE resident
when going through a preempt/schedule cycle, meaning we don't lose
any state.

Cc: stable@vger.kernel.org
Fixes: 8e01d9a396e6 ("KVM: arm64: vgic-v4: Move the GICv4 residency flow to be driven by vcpu_load/put")
Reported-by: Xiang Chen <chenxiang66@hisilicon.com>
Suggested-by: Zenghui Yu <yuzenghui@huawei.com>
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Co-developed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20230713070657.3873244-1-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/amd/display: fix access hdcp_workqueue assert

[ Upstream commit cdff36a0217aadf5cbc167893ad1c0da869619cb ]

[Why] hdcp are enabled for asics from raven. for old asics
which hdcp are not enabled, hdcp_workqueue are null. some
access to hdcp work queue are not guarded with pointer check.

[How] add hdcp_workqueue pointer check before access workqueue.

Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/amd/display: phase3 mst hdcp for multiple displays

[ Upstream commit e8fd3eeb5e8711af39b00642da06474e52f4780c ]

[Why]
multiple display hdcp are enabled within event_property_validate,
event_property_update by looping all displays on mst hub. when
one of display on mst hub in unplugged or disabled, hdcp are
disabled for all displays on mst hub within hdcp_reset_display
by looping all displays of mst link. for displays still active,
their encryption status are off. kernel driver will not run hdcp
authentication again. therefore, hdcp are not enabled automatically.

[How]
within is_content_protection_different, check drm_crtc_state changes
of all displays on mst hub, if need, triger hdcp_update_display to
re-run hdcp authentication.

Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: cdff36a0217a ("drm/amd/display: fix access hdcp_workqueue assert")
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/amd/display: save restore hdcp state when display is unplugged from mst hub

[ Upstream commit 82986fd631fa04bcedaefe11a6b3767601cbe84f ]

[Why]
connector hdcp properties are lost after display is
unplgged from mst hub. connector is destroyed with
dm_dp_mst_connector_destroy. when display is plugged
back, hdcp is not desired and it wouldnt be enabled.

[How]
save hdcp properties into hdcp_work within
amdgpu_dm_atomic_commit_tail. If the same display is
plugged back with same display index, its hdcp
properties will be retrieved from hdcp_work within
dm_dp_mst_get_modes.

Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: cdff36a0217a ("drm/amd/display: fix access hdcp_workqueue assert")
Signed-off-by: Sasha Levin <sashal@kernel.org>

igc: read before write to SRRCTL register

[ Upstream commit 3ce29c17dc847bf4245e16aad78a7617afa96297 ]

igc_configure_rx_ring() function will be called as part of XDP program
setup. If Rx hardware timestamp is enabled prio to XDP program setup,
this timestamp enablement will be overwritten when buffer size is
written into SRRCTL register.

Thus, this commit read the register value before write to SRRCTL
register. This commit is tested by using xdp_hw_metadata bpf selftest
tool. The tool enables Rx hardware timestamp and then attach XDP program
to igc driver. It will display hardware timestamp of UDP packet with
port number 9092. Below are detail of test steps and results.

Command on DUT:
  sudo ./xdp_hw_metadata <interface name>

Command on Link Partner:
  echo -n skb | nc -u -q1 <destination IPv4 addr> 9092

Result before this patch:
  skb hwtstamp is not found!

Result after this patch:
  found skb hwtstamp = 1677800973.642836757

Optionally, read PHC to confirm the values obtained are almost the same:
Command:
  sudo ./testptp -d /dev/ptp0 -g
Result:
  clock time: 1677800973.913598978 or Fri Mar  3 07:49:33 2023

Fixes: fc9df2a0b520 ("igc: Enable RX via AF_XDP zero-copy")
Cc: <stable@vger.kernel.org> # 5.14+
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ring-buffer: Do not swap cpu_buffer during resize process

[ Upstream commit 8a96c0288d0737ad77882024974c075345c72011 ]

When ring_buffer_swap_cpu was called during resize process,
the cpu buffer was swapped in the middle, resulting in incorrect state.
Continuing to run in the wrong state will result in oops.

This issue can be easily reproduced using the following two scripts:
/tmp # cat test1.sh
//#! /bin/sh
for i in `seq 0 100000`
do
         echo 2000 > /sys/kernel/debug/tracing/buffer_size_kb
         sleep 0.5
         echo 5000 > /sys/kernel/debug/tracing/buffer_size_kb
         sleep 0.5
done
/tmp # cat test2.sh
//#! /bin/sh
for i in `seq 0 100000`
do
        echo irqsoff > /sys/kernel/debug/tracing/current_tracer
        sleep 1
        echo nop > /sys/kernel/debug/tracing/current_tracer
        sleep 1
done
/tmp # ./test1.sh &
/tmp # ./test2.sh &

A typical oops log is as follows, sometimes with other different oops logs.

[  231.711293] WARNING: CPU: 0 PID: 9 at kernel/trace/ring_buffer.c:2026 rb_update_pages+0x378/0x3f8
[  231.713375] Modules linked in:
[  231.714735] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15
[  231.716750] Hardware name: linux,dummy-virt (DT)
[  231.718152] Workqueue: events update_pages_handler
[  231.719714] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  231.721171] pc : rb_update_pages+0x378/0x3f8
[  231.722212] lr : rb_update_pages+0x25c/0x3f8
[  231.723248] sp : ffff800082b9bd50
[  231.724169] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000
[  231.726102] x26: 0000000000000001 x25: fffffffffffff010 x24: 0000000000000ff0
[  231.728122] x23: ffff0000c3a0b600 x22: ffff0000c3a0b5c0 x21: fffffffffffffe0a
[  231.730203] x20: ffff0000c3a0b600 x19: ffff0000c0102400 x18: 0000000000000000
[  231.732329] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffe7aa8510
[  231.734212] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000002
[  231.736291] x11: ffff8000826998a8 x10: ffff800082b9baf0 x9 : ffff800081137558
[  231.738195] x8 : fffffc00030e82c8 x7 : 0000000000000000 x6 : 0000000000000001
[  231.740192] x5 : ffff0000ffbafe00 x4 : 0000000000000000 x3 : 0000000000000000
[  231.742118] x2 : 00000000000006aa x1 : 0000000000000001 x0 : ffff0000c0007208
[  231.744196] Call trace:
[  231.744892]  rb_update_pages+0x378/0x3f8
[  231.745893]  update_pages_handler+0x1c/0x38
[  231.746893]  process_one_work+0x1f0/0x468
[  231.747852]  worker_thread+0x54/0x410
[  231.748737]  kthread+0x124/0x138
[  231.749549]  ret_from_fork+0x10/0x20
[  231.750434] ---[ end trace 0000000000000000 ]---
[  233.720486] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[  233.721696] Mem abort info:
[  233.721935]   ESR = 0x0000000096000004
[  233.722283]   EC = 0x25: DABT (current EL), IL = 32 bits
[  233.722596]   SET = 0, FnV = 0
[  233.722805]   EA = 0, S1PTW = 0
[  233.723026]   FSC = 0x04: level 0 translation fault
[  233.723458] Data abort info:
[  233.723734]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[  233.724176]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[  233.724589]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[  233.725075] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000104943000
[  233.725592] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000
[  233.726231] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[  233.726720] Modules linked in:
[  233.727007] CPU: 0 PID: 9 Comm: kworker/0:1 Tainted: G        W          6.5.0-rc1-00276-g20edcec23f92 #15
[  233.727777] Hardware name: linux,dummy-virt (DT)
[  233.728225] Workqueue: events update_pages_handler
[  233.728655] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  233.729054] pc : rb_update_pages+0x1a8/0x3f8
[  233.729334] lr : rb_update_pages+0x154/0x3f8
[  233.729592] sp : ffff800082b9bd50
[  233.729792] x29: ffff800082b9bd50 x28: ffff8000825f7000 x27: 0000000000000000
[  233.730220] x26: 0000000000000000 x25: ffff800082a8b840 x24: ffff0000c0102418
[  233.730653] x23: 0000000000000000 x22: fffffc000304c880 x21: 0000000000000003
[  233.731105] x20: 00000000000001f4 x19: ffff0000c0102400 x18: ffff800082fcbc58
[  233.731727] x17: 0000000000000000 x16: 0000000000000001 x15: 0000000000000001
[  233.732282] x14: ffff8000825fe0c8 x13: 0000000000000001 x12: 0000000000000000
[  233.732709] x11: ffff8000826998a8 x10: 0000000000000ae0 x9 : ffff8000801b760c
[  233.733148] x8 : fefefefefefefeff x7 : 0000000000000018 x6 : ffff0000c03298c0
[  233.733553] x5 : 0000000000000002 x4 : 0000000000000000 x3 : 0000000000000000
[  233.733972] x2 : ffff0000c3a0b600 x1 : 0000000000000000 x0 : 0000000000000000
[  233.734418] Call trace:
[  233.734593]  rb_update_pages+0x1a8/0x3f8
[  233.734853]  update_pages_handler+0x1c/0x38
[  233.735148]  process_one_work+0x1f0/0x468
[  233.735525]  worker_thread+0x54/0x410
[  233.735852]  kthread+0x124/0x138
[  233.736064]  ret_from_fork+0x10/0x20
[  233.736387] Code: 92400000 910006b5 aa000021 aa0303f7 (f9400060)
[  233.736959] ---[ end trace 0000000000000000 ]---

After analysis, the seq of the error is as follows [1-5]:

int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
int cpu_id)
{
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
//1. get cpu_buffer, aka cpu_buffer(A)
...
...
schedule_work_on(cpu,
 &cpu_buffer->update_pages_work);
//2. 'update_pages_work' is queue on 'cpu', cpu_buffer(A) is passed to
// update_pages_handler, do the update process, set 'update_done' in
// complete(&cpu_buffer->update_done) and to wakeup resize process.
//---->
//3. Just at this moment, ring_buffer_swap_cpu is triggered,
//cpu_buffer(A) be swaped to cpu_buffer(B), the max_buffer.
//ring_buffer_swap_cpu is called as the 'Call trace' below.

Call trace:
 dump_backtrace+0x0/0x2f8
 show_stack+0x18/0x28
 dump_stack+0x12c/0x188
 ring_buffer_swap_cpu+0x2f8/0x328
 update_max_tr_single+0x180/0x210
 check_critical_timing+0x2b4/0x2c8
 tracer_hardirqs_on+0x1c0/0x200
 trace_hardirqs_on+0xec/0x378
 el0_svc_common+0x64/0x260
 do_el0_svc+0x90/0xf8
 el0_svc+0x20/0x30
 el0_sync_handler+0xb0/0xb8
 el0_sync+0x180/0x1c0
//<----

/* wait for all the updates to complete */
for_each_buffer_cpu(buffer, cpu) {
cpu_buffer = buffer->buffers[cpu];
//4. get cpu_buffer, cpu_buffer(B) is used in the following process,
//the state of cpu_buffer(A) and cpu_buffer(B) is totally wrong.
//for example, cpu_buffer(A)->update_done will leave be set 1, and will
//not 'wait_for_completion' at the next resize round.
  if (!cpu_buffer->nr_pages_to_update)
continue;

if (cpu_online(cpu))
wait_for_completion(&cpu_buffer->update_done);
cpu_buffer->nr_pages_to_update = 0;
}
...
}
//5. the state of cpu_buffer(A) and cpu_buffer(B) is totally wrong,
//Continuing to run in the wrong state, then oops occurs.

Link: https://lore.kernel.org/linux-trace-kernel/202307191558478409990@zte.com.cn
Signed-off-by: Chen Lin <chen.lin5@zte.com.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: MGMT: Use correct address for memcpy()

[ Upstream commit d1f0a9816f5fbc1316355ec1aa4ddfb9b624cca5 ]

In function ‘fortify_memcpy_chk’,
    inlined from ‘get_conn_info_complete’ at net/bluetooth/mgmt.c:7281:2:
include/linux/fortify-string.h:592:25: error: call to
‘__read_overflow2_field’ declared with attribute warning: detected read
beyond size of field (2nd parameter); maybe use struct_group()?
[-Werror=attribute-warning]
  592 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

This is due to the wrong member is used for memcpy(). Use correct one.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

powerpc/kasan: Disable KCOV in KASAN code

[ Upstream commit ccb381e1af1ace292153c88eb1fffa5683d16a20 ]

As per the generic KASAN code in mm/kasan, disable KCOV with
KCOV_INSTRUMENT := n in the makefile.

This fixes a ppc64 boot hang when KCOV and KASAN are enabled.
kasan_early_init() gets called before a PACA is initialised, but the
KCOV hook expects a valid PACA.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230710044143.146840-1-bgray@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V

[ Upstream commit 5251605f4d297a0eb5d3b7f39f9dcee9e4d0115a ]

Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GZ301V series which uses an SPI connected Cirrus amp.

While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230706223323.30871-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ALSA: hda/realtek: Add quirk for ASUS ROG GA402X

[ Upstream commit 9abc77fb144fe916fd2f592dc4b8c7bade02e58a ]

Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GA402X series which uses an I2C connected Cirrus amp.

While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230704044619.19343-3-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ALSA: hda/realtek: Add quirk for ASUS ROG GX650P

[ Upstream commit 8cc87c055d28320e5fa5457922f43bc07dec58bd ]

Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GV601V series which uses an I2C connected Cirrus amp.

While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230704044619.19343-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()

[ Upstream commit 1f4a08fed450db87fbb5ff5105354158bdbe1a22 ]

The variable codec->regmap is often protected by the lock
codec->regmap_lock when is accessed. However, it is accessed without
holding the lock when is accessed in snd_hdac_regmap_sync():

  if (codec->regmap)

In my opinion, this may be a harmful race, because if codec->regmap is
set to NULL right after the condition is checked, a null-pointer
dereference can occur in the called function regcache_sync():

  map->lock(map->lock_arg); --> Line 360 in drivers/base/regmap/regcache.c

To fix this possible null-pointer dereference caused by data race, the
mutex_lock coverage is extended to protect the if statement as well as the
function call to regcache_sync().

[ Note: the lack of the regmap_lock itself is harmless for the current
  codec driver implementations, as snd_hdac_regmap_sync() is only for
  PM runtime resume that is prohibited during the codec probe.
  But the change makes the whole code more consistent, so it's merged
  as is -- tiwai ]

Reported-by: BassCheck <bass@buaa.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Link: https://lore.kernel.org/r/20230703031016.1184711-1-islituo@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760

[ Upstream commit 73f1c75d5e6bd8ce2a887ef493a66ad1b16ed704 ]

These models use NSIWAY amplifiers for internal speaker, but cannot put
sound outside from these amplifiers. So eapd verbs are needed to initialize
the amplifiers. They can be added during boot to get working sound out
of internal speaker.

Signed-off-by: dengxiang <dengxiang@nfschina.com>
Link: https://lore.kernel.org/r/20230703021751.2945750-1-dengxiang@nfschina.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

fs/ntfs3: Mark ntfs dirty when on-disk struct is corrupted

[ Upstream commit e0f363a98830e8d7d70fbaf91c07ae0b7c57aafe ]

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

fs: ntfs3: Fix possible null-pointer dereferences in mi_read()

[ Upstream commit 97498cd610c0d030a7bd49a7efad974790661162 ]

In a previous commit 2681631c2973 ("fs/ntfs3: Add null pointer check to
attr_load_runs_vcn"), ni can be NULL in attr_load_runs_vcn(), and thus it
should be checked before being used.

However, in the call stack of this commit, mft_ni in mi_read() is
aliased with ni in attr_load_runs_vcn(), and it is also used in
mi_read() at two places:

mi_read()
  rw_lock = &mft_ni->file.run_lock -> No check
  attr_load_runs_vcn(mft_ni, ...)
    ni (namely mft_ni) is checked in the previous commit
  attr_load_runs_vcn(..., &mft_ni->file.run) -> No check

Thus, to avoid possible null-pointer dereferences, the related checks
should be added.

These bugs are reported by a static analysis tool implemented by myself,
and they are found by extending a known bug fixed in the previous commit.
Thus, they could be theoretical bugs.

Signed-off-by: Jia-Ju Bai <baijiaju@buaa.edu.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

fs/ntfs3: Enhance sanity check while generating attr_list

[ Upstream commit fdec309c7672cbee4dc0229ee4cbb33c948a1bdd ]

ni_create_attr_list uses WARN_ON to catch error cases while generating
attribute list, which only prints out stack trace and may not be enough.
This repalces them with more proper error handling flow.

[   59.666332] BUG: kernel NULL pointer dereference, address: 000000000000000e
[   59.673268] #PF: supervisor read access in kernel mode
[   59.678354] #PF: error_code(0x0000) - not-present page
[   59.682831] PGD 8000000005ff1067 P4D 8000000005ff1067 PUD 7dee067 PMD 0
[   59.688556] Oops: 0000 [#1] PREEMPT SMP KASAN PTI
[   59.692642] CPU: 0 PID: 198 Comm: poc Tainted: G    B   W          6.2.0-rc1+ #4
[   59.698868] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[   59.708795] RIP: 0010:ni_create_attr_list+0x505/0x860
[   59.713657] Code: 7e 10 e8 5e d0 d0 ff 45 0f b7 76 10 48 8d 7b 16 e8 00 d1 d0 ff 66 44 89 73 16 4d 8d 75 0e 4c 89 f7 e8 3f d0 d0 ff 4c 8d8
[   59.731559] RSP: 0018:ffff88800a56f1e0 EFLAGS: 00010282
[   59.735691] RAX: 0000000000000001 RBX: ffff88800b7b5088 RCX: ffffffffb83079fe
[   59.741792] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffffbb7f9fc0
[   59.748423] RBP: ffff88800a56f3a8 R08: ffff88800b7b50a0 R09: fffffbfff76ff3f9
[   59.754654] R10: ffffffffbb7f9fc7 R11: fffffbfff76ff3f8 R12: ffff88800b756180
[   59.761552] R13: 0000000000000000 R14: 000000000000000e R15: 0000000000000050
[   59.768323] FS:  00007feaa8c96440(0000) GS:ffff88806d400000(0000) knlGS:0000000000000000
[   59.776027] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.781395] CR2: 00007f3a2e0b1000 CR3: 000000000a5bc000 CR4: 00000000000006f0
[   59.787607] Call Trace:
[   59.790271]  <TASK>
[   59.792488]  ? __pfx_ni_create_attr_list+0x10/0x10
[   59.797235]  ? kernel_text_address+0xd3/0xe0
[   59.800856]  ? unwind_get_return_address+0x3e/0x60
[   59.805101]  ? __kasan_check_write+0x18/0x20
[   59.809296]  ? preempt_count_sub+0x1c/0xd0
[   59.813421]  ni_ins_attr_ext+0x52c/0x5c0
[   59.817034]  ? __pfx_ni_ins_attr_ext+0x10/0x10
[   59.821926]  ? __vfs_setxattr+0x121/0x170
[   59.825718]  ? __vfs_setxattr_noperm+0x97/0x300
[   59.829562]  ? __vfs_setxattr_locked+0x145/0x170
[   59.833987]  ? vfs_setxattr+0x137/0x2a0
[   59.836732]  ? do_setxattr+0xce/0x150
[   59.839807]  ? setxattr+0x126/0x140
[   59.842353]  ? path_setxattr+0x164/0x180
[   59.845275]  ? __x64_sys_setxattr+0x71/0x90
[   59.848838]  ? do_syscall_64+0x3f/0x90
[   59.851898]  ? entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   59.857046]  ? stack_depot_save+0x17/0x20
[   59.860299]  ni_insert_attr+0x1ba/0x420
[   59.863104]  ? __pfx_ni_insert_attr+0x10/0x10
[   59.867069]  ? preempt_count_sub+0x1c/0xd0
[   59.869897]  ? _raw_spin_unlock_irqrestore+0x2b/0x50
[   59.874088]  ? __create_object+0x3ae/0x5d0
[   59.877865]  ni_insert_resident+0xc4/0x1c0
[   59.881430]  ? __pfx_ni_insert_resident+0x10/0x10
[   59.886355]  ? kasan_save_alloc_info+0x1f/0x30
[   59.891117]  ? __kasan_kmalloc+0x8b/0xa0
[   59.894383]  ntfs_set_ea+0x90d/0xbf0
[   59.897703]  ? __pfx_ntfs_set_ea+0x10/0x10
[   59.901011]  ? kernel_text_address+0xd3/0xe0
[   59.905308]  ? __kernel_text_address+0x16/0x50
[   59.909811]  ? unwind_get_return_address+0x3e/0x60
[   59.914898]  ? __pfx_stack_trace_consume_entry+0x10/0x10
[   59.920250]  ? arch_stack_walk+0xa2/0x100
[   59.924560]  ? filter_irq_stacks+0x27/0x80
[   59.928722]  ntfs_setxattr+0x405/0x440
[   59.932512]  ? __pfx_ntfs_setxattr+0x10/0x10
[   59.936634]  ? kvmalloc_node+0x2d/0x120
[   59.940378]  ? kasan_save_stack+0x41/0x60
[   59.943870]  ? kasan_save_stack+0x2a/0x60
[   59.947719]  ? kasan_set_track+0x29/0x40
[   59.951417]  ? kasan_save_alloc_info+0x1f/0x30
[   59.955733]  ? __kasan_kmalloc+0x8b/0xa0
[   59.959598]  ? __kmalloc_node+0x68/0x150
[   59.963163]  ? kvmalloc_node+0x2d/0x120
[   59.966490]  ? vmemdup_user+0x2b/0xa0
[   59.969060]  __vfs_setxattr+0x121/0x170
[   59.972456]  ? __pfx___vfs_setxattr+0x10/0x10
[   59.976008]  __vfs_setxattr_noperm+0x97/0x300
[   59.981562]  __vfs_setxattr_locked+0x145/0x170
[   59.986100]  vfs_setxattr+0x137/0x2a0
[   59.989964]  ? __pfx_vfs_setxattr+0x10/0x10
[   59.993616]  ? __kasan_check_write+0x18/0x20
[   59.997425]  do_setxattr+0xce/0x150
[   60.000304]  setxattr+0x126/0x140
[   60.002967]  ? __pfx_setxattr+0x10/0x10
[   60.006471]  ? __virt_addr_valid+0xcb/0x140
[   60.010461]  ? __call_rcu_common.constprop.0+0x1c7/0x330
[   60.016037]  ? debug_smp_processor_id+0x1b/0x30
[   60.021008]  ? kasan_quarantine_put+0x5b/0x190
[   60.025545]  ? putname+0x84/0xa0
[   60.027910]  ? __kasan_slab_free+0x11e/0x1b0
[   60.031483]  ? putname+0x84/0xa0
[   60.033986]  ? preempt_count_sub+0x1c/0xd0
[   60.036876]  ? __mnt_want_write+0xae/0x100
[   60.040738]  ? mnt_want_write+0x8f/0x150
[   60.044317]  path_setxattr+0x164/0x180
[   60.048096]  ? __pfx_path_setxattr+0x10/0x10
[   60.052096]  ? strncpy_from_user+0x175/0x1c0
[   60.056482]  ? debug_smp_processor_id+0x1b/0x30
[   60.059848]  ? fpregs_assert_state_consistent+0x6b/0x80
[   60.064557]  __x64_sys_setxattr+0x71/0x90
[   60.068892]  do_syscall_64+0x3f/0x90
[   60.072868]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
[   60.077523] RIP: 0033:0x7feaa86e4469
[   60.080915] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 088
[   60.097353] RSP: 002b:00007ffdbd8311e8 EFLAGS: 00000286 ORIG_RAX: 00000000000000bc
[   60.103386] RAX: ffffffffffffffda RBX: 9461c5e290baac00 RCX: 00007feaa86e4469
[   60.110322] RDX: 00007ffdbd831fe0 RSI: 00007ffdbd831305 RDI: 00007ffdbd831263
[   60.116808] RBP: 00007ffdbd836180 R08: 0000000000000001 R09: 00007ffdbd836268
[   60.123879] R10: 000000000000007d R11: 0000000000000286 R12: 0000000000400500
[   60.130540] R13: 00007ffdbd836260 R14: 0000000000000000 R15: 0000000000000000
[   60.136553]  </TASK>
[   60.138818] Modules linked in:
[   60.141839] CR2: 000000000000000e
[   60.144831] ---[ end trace 0000000000000000 ]---
[   60.149058] RIP: 0010:ni_create_attr_list+0x505/0x860
[   60.153975] Code: 7e 10 e8 5e d0 d0 ff 45 0f b7 76 10 48 8d 7b 16 e8 00 d1 d0 ff 66 44 89 73 16 4d 8d 75 0e 4c 89 f7 e8 3f d0 d0 ff 4c 8d8
[   60.172443] RSP: 0018:ffff88800a56f1e0 EFLAGS: 00010282
[   60.176246] RAX: 0000000000000001 RBX: ffff88800b7b5088 RCX: ffffffffb83079fe
[   60.182752] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffffbb7f9fc0
[   60.189949] RBP: ffff88800a56f3a8 R08: ffff88800b7b50a0 R09: fffffbfff76ff3f9
[   60.196950] R10: ffffffffbb7f9fc7 R11: fffffbfff76ff3f8 R12: ffff88800b756180
[   60.203671] R13: 0000000000000000 R14: 000000000000000e R15: 0000000000000050
[   60.209595] FS:  00007feaa8c96440(0000) GS:ffff88806d400000(0000) knlGS:0000000000000000
[   60.216299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   60.222276] CR2: 00007f3a2e0b1000 CR3: 000000000a5bc000 CR4: 00000000000006f0

Signed-off-by: Edward Lo <loyuantsung@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drm/amdgpu: Fix potential fence use-after-free v2

[ Upstream commit 2e54154b9f27262efd0cb4f903cc7d5ad1fe9628 ]

fence Decrements the reference count before exiting.
Avoid Race Vulnerabilities for fence use-after-free.

v2 (chk): actually fix the use after free and not just move it.

Signed-off-by: shanzhulig <shanzhulig@gmail.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

ceph: try to dump the msgs when decoding fails

[ Upstream commit 8b0da5c549ae63ba1debd92a350f90773cb4bfe7 ]

When the msgs are corrupted we need to dump them and then it will
be easier to dig what has happened and where the issue is.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Milind Changire <mchangir@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: btusb: Add MT7922 bluetooth ID for the Asus Ally

[ Upstream commit fa01eba11f0e57c767a5eab5291c7a01407a00be ]

Adding the device ID from the Asus Ally gets the bluetooth working
on the device.

Signed-off-by: Matthew Anderson <ruinairas1992@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Bluetooth: L2CAP: Fix use-after-free

[ Upstream commit f752a0b334bb95fe9b42ecb511e0864e2768046f ]

Fix potential use-after-free in l2cap_le_command_rej.

Signed-off-by: Zhengping Jiang <jiangzp@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub)

[ Upstream commit 009637de1f65cff452ad49554d1e8ef9fda99e43 ]

Add PCI_VENDOR_ID_HYGON(Hygon vendor id [0x1d94]) in this driver

Signed-off-by: Yuechao Zhao <yuechao.zhao@advantech.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20230612031907.796461-1-a345351830@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

firewire: net: fix use after free in fwnet_finish_incoming_packet()

[ Upstream commit 3ff256751a2853e1ffaa36958ff933ccc98c6cb5 ]

The netif_rx() function frees the skb so we can't dereference it to
save the skb->len.

Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Link: https://lore.kernel.org/r/tencent_3B3D24B66ED66A6BB73CC0E63C6A14E45109@qq.com
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>

thunderbolt: Limit Intel Barlow Ridge USB3 bandwidth

[ Upstream commit f2bfa944080dcbb8eb56259dfd2c07204cbee17e ]

Intel Barlow Ridge discrete USB4 host router has the same limitation as
the previous generations so make sure the USB3 bandwidth limitation
quirk is applied to Barlow Ridge too.

Signed-off-by: Gil Fine <gil.fine@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

thunderbolt: Add Intel Barlow Ridge PCI ID

[ Upstream commit 6f14a210661ce03988ef4ed3c8402037c8e06539 ]

Intel Barlow Ridge is the first USB4 v2 controller from Intel. The
controller exposes standard USB4 PCI class ID in typical configurations,
however there is a way to configure it so that it uses a special class
ID to allow using s different driver than the Windows inbox one. For
this reason add the Barlow Ridge PCI ID to the Linux driver too so that
the driver can attach regardless of the class ID.

Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db()

[ Upstream commit c85fd9422fe0f5d667305efb27f56d09eab120b0 ]

When nonstatic_release_resource_db() frees all resources associated
with an PCMCIA socket, it forgets to free socket_data too, causing
a memory leak observable with kmemleak:

unreferenced object 0xc28d1000 (size 64):
  comm "systemd-udevd", pid 297, jiffies 4294898478 (age 194.484s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 f0 85 0e c3 00 00 00 00  ................
    00 00 00 00 0c 10 8d c2 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffda4245>] __kmem_cache_alloc_node+0x2d7/0x4a0
    [<7e51f0c8>] kmalloc_trace+0x31/0xa4
    [<d52b4ca0>] nonstatic_init+0x24/0x1a4 [pcmcia_rsrc]
    [<a2f13e08>] pcmcia_register_socket+0x200/0x35c [pcmcia_core]
    [<a728be1b>] yenta_probe+0x4d8/0xa70 [yenta_socket]
    [<c48fac39>] pci_device_probe+0x99/0x194
    [<84b7c690>] really_probe+0x181/0x45c
    [<8060fe6e>] __driver_probe_device+0x75/0x1f4
    [<b9b76f43>] driver_probe_device+0x28/0xac
    [<648b766f>] __driver_attach+0xeb/0x1e4
    [<6e9659eb>] bus_for_each_dev+0x61/0xb4
    [<25a669f3>] driver_attach+0x1e/0x28
    [<d8671d6b>] bus_add_driver+0x102/0x20c
    [<df0d323c>] driver_register+0x5b/0x120
    [<942cd8a4>] __pci_register_driver+0x44/0x4c
    [<e536027e>] __UNIQUE_ID___addressable_cleanup_module188+0x1c/0xfffff000 [iTCO_vendor_support]

Fix this by freeing socket_data too.

Tested on a Acer Travelmate 4002WLMi by manually binding/unbinding
the yenta_cardbus driver (yenta_socket).

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Message-ID: <20230512184529.5094-1-W_Armin@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

gfs2: Fix possible data races in gfs2_show_options()

[ Upstream commit 6fa0a72cbbe45db4ed967a51f9e6f4e3afe61d20 ]

Some fields such as gt_logd_secs of the struct gfs2_tune are accessed
without holding the lock gt_spin in gfs2_show_options():

  val = sdp->sd_tune.gt_logd_secs;
  if (val != 30)
    seq_printf(s, ",commit=%d", val);

And thus can cause data races when gfs2_show_options() and other functions
such as gfs2_reconfigure() are concurrently executed:

  spin_lock(&gt->gt_spin);
  gt->gt_logd_secs = newargs->ar_commit;

To fix these possible data races, the lock sdp->sd_tune.gt_spin is
acquired before accessing the fields of gfs2_tune and released after these
accesses.

Further changes by Andreas:

- Don't hold the spin lock over the seq_printf operations.

Reported-by: BassCheck <bass@buaa.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: chipidea: imx: add missing USB PHY DPDM wakeup setting

[ Upstream commit 53d061c19dc4cb68409df6dc11c40389c8c42a75 ]

USB PHY DPDM wakeup bit is enabled by default, when USB wakeup
is not required(/sys/.../wakeup is disabled), this bit should be
disabled, otherwise we will have unexpected wakeup if do USB device
connect/disconnect while system sleep.
This bit can be enabled for both host and device mode.

Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Message-ID: <20230517081907.3410465-3-xu.yang_2@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: chipidea: imx: don't request QoS for imx8ulp

[ Upstream commit 9a070e8e208995a9d638b538ed7abf28bd6ea6f0 ]

Use dedicated imx8ulp usb compatible to remove QoS request
since imx8ulp has no such limitation of imx7ulp: DMA will
not work if system enters idle.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Message-ID: <20230530104007.1294702-2-xu.yang_2@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

thunderbolt: Read retimer NVM authentication status prior tb_retimer_set_inbound_sbtx()

[ Upstream commit 1402ba08abae5cfa583ff1a40b99c098a0532d41 ]

According to the USB4 retimer guide the correct order is immediately
after sending ENUMERATE_RETIMERS so update the code to follow this.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

media: platform: mediatek: vpu: fix NULL ptr dereference

[ Upstream commit 3df55cd773e8603b623425cc97b05e542854ad27 ]

If pdev is NULL, then it is still dereferenced.

This fixes this smatch warning:

drivers/media/platform/mediatek/vpu/mtk_vpu.c:570 vpu_load_firmware() warn: address of NULL pointer 'pdev'

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: gadget: uvc: queue empty isoc requests if no video buffer is available

[ Upstream commit c3ff12a92bd7072170978b8b41c2fa41b038139a ]

ISOC transfers expect a certain cadence of requests being queued. Not
keeping up with the expected rate of requests results in missed ISOC
transfers (EXDEV). The application layer may or may not produce video
frames to match this expectation, so uvc gadget driver must handle cases
where the application is not queuing up buffers fast enough to fulfill
ISOC requirements.

Currently, uvc gadget driver waits for new video buffer to become available
before queuing up usb requests. With this patch the gadget driver queues up
0 length usb requests whenever there are no video buffers available. The
USB controller's complete callback is used as the limiter for how quickly
the 0 length packets will be queued. Video buffers are still queued as
soon as they become available.

Link: https://lore.kernel.org/CAMHf4WKbi6KBPQztj9FA4kPvESc1fVKrC8G73-cs6tTeQby9=w@mail.gmail.com/
Signed-off-by: Avichal Rakesh <arakesh@google.com>
Link: https://lore.kernel.org/r/20230508231103.1621375-1-arakesh@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

usb: gadget: u_serial: Avoid spinlock recursion in __gs_console_push

[ Upstream commit e5990469943c711cb00bfde6338d2add6c6d0bfe ]

When serial console over USB is enabled, gs_console_connect
queues gs_console_work, where it acquires the spinlock and
queues the usb request, and this request goes to gadget layer.
Now consider a situation where gadget layer prints something
to dmesg, this will eventually call gs_console_write() which
requires cons->lock. And this causes spinlock recursion. Avoid
this by excluding usb_ep_queue from the spinlock.

 spin_lock_irqsave //needs cons->lock
 gs_console_write
.
.
 _printk
 __warn_printk
 dev_warn/pr_err
.
.
 [USB Gadget Layer]
.
.
 usb_ep_queue
 gs_console_work
 __gs_console_push // acquires cons->lock
 process_one_work

Signed-off-by: Prashanth K <quic_prashk@quicinc.com>
Link: https://lore.kernel.org/r/1683638872-6885-1-git-send-email-quic_prashk@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

media: camss: set VFE bpl_alignment to 16 for sdm845 and sm8250

[ Upstream commit d5b7eb477c286f6ceccbb38704136eea0e6b09ca ]

From the experiments with camera sensors using SGRBG10_1X10/3280x2464 and
SRGGB10_1X10/3280x2464 formats, it becomes clear that on sdm845 and sm8250
VFE outputs the lines padded to a length multiple of 16 bytes. As in the
current driver the value of the bpl_alignment is set to 8 bytes, the frames
captured in formats with the bytes-per-line value being not a multiple of
16 get corrupted.

Set the bpl_alignment of the camss video output device to 16 for sdm845 and
sm8250 to fix that.

Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>

media: v4l2-mem2mem: add lock to protect parameter num_rdy

[ Upstream commit 56b5c3e67b0f9af3f45cf393be048ee8d8a92694 ]

Getting below error when using KCSAN to check the driver. Adding lock to
protect parameter num_rdy when getting the value with function:
v4l2_m2m_num_src_bufs_ready/v4l2_m2m_num_dst_bufs_ready.

kworker/u16:3: [name:report&]BUG: KCSAN: data-race in v4l2_m2m_buf_queue
kworker/u16:3: [name:report&]

kworker/u16:3: [name:report&]read-write to 0xffffff8105f35b94 of 1 bytes by task 20865 on cpu 7:
kworker/u16:3:  v4l2_m2m_buf_queue+0xd8/0x10c

Signed-off-by: Pina Chen <pina.chen@mediatek.com>
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>