Merge tag 'io_uring-6.1-2022-12-08' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
 "A single small fix for an issue related to ordering between
  cancelation and current->io_uring teardown"

* tag 'io_uring-6.1-2022-12-08' of git://git.kernel.dk/linux:
  io_uring: Fix a null-ptr-deref in io_tctx_exit_cb()

Merge tag 'net-6.1-rc9' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bluetooth, can and netfilter.

  Current release - new code bugs:

   - bonding: ipv6: correct address used in Neighbour Advertisement
     parsing (src vs dst typo)

   - fec: properly scope IRQ coalesce setup during link up to supported
     chips only

  Previous releases - regressions:

   - Bluetooth fixes for fake CSR clones (knockoffs):
       - re-add ERR_DATA_REPORTING quirk
       - fix crash when device is replugged

   - Bluetooth:
       - silence a user-triggerable dmesg error message
       - L2CAP: fix u8 overflow, oob access
       - correct vendor codec definition
       - fix support for Read Local Supported Codecs V2

   - ti: am65-cpsw: fix RGMII configuration at SPEED_10

   - mana: fix race on per-CQ variable NAPI work_done

  Previous releases - always broken:

   - af_unix: diag: fetch user_ns from in_skb in unix_diag_get_exact(),
     avoid null-deref

   - af_can: fix NULL pointer dereference in can_rcv_filter

   - can: slcan: fix UAF with a freed work

   - can: can327: flush TX_work on ldisc .close()

   - macsec: add missing attribute validation for offload

   - ipv6: avoid use-after-free in ip6_fragment()

   - nft_set_pipapo: actually validate intervals in fields after the
     first one

   - mvneta: prevent oob access in mvneta_config_rss()

   - ipv4: fix incorrect route flushing when table ID 0 is used, or when
     source address is deleted

   - phy: mxl-gpy: add workaround for IRQ bug on GPY215B and GPY215C"

* tag 'net-6.1-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (77 commits)
  net: dsa: sja1105: avoid out of bounds access in sja1105_init_l2_policing()
  s390/qeth: fix use-after-free in hsci
  macsec: add missing attribute validation for offload
  net: mvneta: Fix an out of bounds check
  net: thunderbolt: fix memory leak in tbnet_open()
  ipv6: avoid use-after-free in ip6_fragment()
  net: plip: don't call kfree_skb/dev_kfree_skb() under spin_lock_irq()
  net: phy: mxl-gpy: add MDINT workaround
  net: dsa: mv88e6xxx: accept phy-mode = "internal" for internal PHY ports
  xen/netback: don't call kfree_skb() under spin_lock_irqsave()
  dpaa2-switch: Fix memory leak in dpaa2_switch_acl_entry_add() and dpaa2_switch_acl_entry_remove()
  ethernet: aeroflex: fix potential skb leak in greth_init_rings()
  tipc: call tipc_lxc_xmit without holding node_read_lock
  can: esd_usb: Allow REC and TEC to return to zero
  can: can327: flush TX_work on ldisc .close()
  can: slcan: fix freed work crash
  can: af_can: fix NULL pointer dereference in can_rcv_filter
  net: dsa: sja1105: fix memory leak in sja1105_setup_devlink_regions()
  ipv4: Fix incorrect route flushing when table ID 0 is used
  ipv4: Fix incorrect route flushing when source address is deleted
  ...

Merge tag 'for-linus-2022120801' of git://git./linux/kernel/git/hid/hid

Pull HID fixes from Jiri Kosina:
 "A regression fix for handling Logitech HID++ devices and memory
  corruption fixes:

   - regression fix (revert) for catch-all handling of Logitech HID++
     Bluetooth devices; there are devices that turn out not to work with
     this, and the root cause is yet to be properly understood. So we
     are dropping it for now, and it will be revisited for 6.2 or 6.3
     (Benjamin Tissoires)

   - memory corruption fix in HID core (ZhangPeng)

   - memory corruption fix in hid-lg4ff (Anastasia Belova)

   - Kconfig fix for I2C_HID (Benjamin Tissoires)

   - a few device-id specific quirks that piggy-back on top of the
     important fixes above"

* tag 'for-linus-2022120801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  Revert "HID: logitech-hidpp: Enable HID++ for all the Logitech Bluetooth devices"
  Revert "HID: logitech-hidpp: Remove special-casing of Bluetooth devices"
  HID: usbhid: Add ALWAYS_POLL quirk for some mice
  HID: core: fix shift-out-of-bounds in hid_report_raw_event
  HID: uclogic: Add HID_QUIRK_HIDINPUT_FORCE quirk
  HID: fix I2C_HID not selected when I2C_HID_OF_ELAN is
  HID: hid-lg4ff: Add check for empty lbuf
  HID: ite: Enable QUIRK_TOUCHPAD_ON_OFF_REPORT on Acer Aspire Switch V 10
  HID: uclogic: Fix frame templates for big endian architectures

Merge tag 'soc-fixes-6.1-5' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fix from Arnd Bergmann:
 "One last build fix came in, addressing a link failure when building
  without CONFIG_OUTER_CACHE"

* tag 'soc-fixes-6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: at91: fix build for SAMA5D3 w/o L2 cache

Revert "HID: logitech-hidpp: Enable HID++ for all the Logitech Bluetooth devices"

This reverts commit 532223c8ac57605a10e46dc0ab23dcf01c9acb43.

As reported in [0], hid-logitech-hidpp now binds on all bluetooth mice,
but there are corner cases where hid-logitech-hidpp just gives up on
the mouse. This leads the end user with a dead mouse.

Given that we are at -rc8, we are definitively too late to find a proper
fix. We already identified 2 issues less than 24 hours after the bug
report. One in that ->match() was never designed to be used anywhere else
than in hid-generic, and the other that hid-logitech-hidpp has corner
cases where it gives up on devices it is not supposed to.

So we have no choice but postpone this patch to the next kernel release.

[0] https://lore.kernel.org/linux-input/CAJZ5v0g-_o4AqMgNwihCb0jrwrcJZfRrX=jv8aH54WNKO7QB8A@mail.gmail.com/

Reported-by: Rafael J . Wysocki <rjw@rjwysocki.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Revert "HID: logitech-hidpp: Remove special-casing of Bluetooth devices"

This reverts commit 8544c812e43ab7bdf40458411b83987b8cba924d.

We need to revert commit 532223c8ac57 ("HID: logitech-hidpp: Enable HID++
for all the Logitech Bluetooth devices") because that commit might make
hid-logitech-hidpp bind on mice that are not well enough supported by
hid-logitech-hidpp, and the end result is that the probe of those mice
is now returning -ENODEV, leaving the end user with a dead mouse.

Given that commit 8544c812e43a ("HID: logitech-hidpp: Remove special-casing
of Bluetooth devices") is a direct dependency of 532223c8ac57, revert it
too.

Note that this also adapt according to commit 908d325e1665 ("HID:
logitech-hidpp: Detect hi-res scrolling support") to re-add support of
the devices that were removed from that commit too.

I have locally an MX Master and I tested this device with that revert,
ensuring we still have high-res scrolling.

Reported-by: Rafael J . Wysocki <rjw@rjwysocki.net>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Merge tag 'loongarch-fixes-6.1-3' of git://git./linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Export smp_send_reschedule() for modules use, fix a huge page entry
  update issue, and add documents for booting description"

* tag 'loongarch-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  docs/zh_CN: Add LoongArch booting description's translation
  docs/LoongArch: Add booting description
  LoongArch: mm: Fix huge page entry update for virtual machine
  LoongArch: Export symbol for function smp_send_reschedule()

Merge tag 'for-linus-xsa-6.1-rc9b-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "A single fix for the recent security issue XSA-423"

* tag 'for-linus-xsa-6.1-rc9b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/netback: fix build warning

Merge tag 'gpio-fixes-for-v6.1' of git://git./linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix a memory leak in gpiolib core

 - fix reference leaks in gpio-amd8111 and gpio-rockchip

* tag 'gpio-fixes-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio/rockchip: fix refcount leak in rockchip_gpiolib_register()
  gpio: amd8111: Fix PCI device reference count leak
  gpiolib: fix memory leak in gpiochip_setup_dev()

Merge tag 'ata-6.1-rc8' of git://git./linux/kernel/git/dlemoal/libata

Pull ATA fix from Damien Le Moal:

 - Avoid a NULL pointer dereference in the libahci platform code that
   can happen on initialization when a device tree does not specify
   names for the adapter clocks (from Anders)

* tag 'ata-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: libahci_platform: ahci_platform_find_clk: oops, NULL pointer

memcg: Fix possible use-after-free in memcg_write_event_control()

memcg_write_event_control() accesses the dentry->d_name of the specified
control fd to route the write call.  As a cgroup interface file can't be
renamed, it's safe to access d_name as long as the specified file is a
regular cgroup file.  Also, as these cgroup interface files can't be
removed before the directory, it's safe to access the parent too.

Prior to 347c4a874710 ("memcg: remove cgroup_event->cft"), there was a
call to __file_cft() which verified that the specified file is a regular
cgroupfs file before further accesses.  The cftype pointer returned from
__file_cft() was no longer necessary and the commit inadvertently
dropped the file type check with it allowing any file to slip through.
With the invarients broken, the d_name and parent accesses can now race
against renames and removals of arbitrary files and cause
use-after-free's.

Fix the bug by resurrecting the file type check in __file_cft().  Now
that cgroupfs is implemented through kernfs, checking the file
operations needs to go through a layer of indirection.  Instead, let's
check the superblock and dentry type.

Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 347c4a874710 ("memcg: remove cgroup_event->cft")
Cc: stable@kernel.org # v3.14+
Reported-by: Jann Horn <jannh@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net: dsa: sja1105: avoid out of bounds access in sja1105_init_l2_policing()

The SJA1105 family has 45 L2 policing table entries
(SJA1105_MAX_L2_POLICING_COUNT) and SJA1110 has 110
(SJA1110_MAX_L2_POLICING_COUNT). Keeping the table structure but
accounting for the difference in port count (5 in SJA1105 vs 10 in
SJA1110) does not fully explain the difference. Rather, the SJA1110 also
has L2 ingress policers for multicast traffic. If a packet is classified
as multicast, it will be processed by the policer index 99 + SRCPORT.

The sja1105_init_l2_policing() function initializes all L2 policers such
that they don't interfere with normal packet reception by default. To have
a common code between SJA1105 and SJA1110, the index of the multicast
policer for the port is calculated because it's an index that is out of
bounds for SJA1105 but in bounds for SJA1110, and a bounds check is
performed.

The code fails to do the proper thing when determining what to do with the
multicast policer of port 0 on SJA1105 (ds->num_ports = 5). The "mcast"
index will be equal to 45, which is also equal to
table->ops->max_entry_count (SJA1105_MAX_L2_POLICING_COUNT). So it passes
through the check. But at the same time, SJA1105 doesn't have multicast
policers. So the code programs the SHARINDX field of an out-of-bounds
element in the L2 Policing table of the static config.

The comparison between index 45 and 45 entries should have determined the
code to not access this policer index on SJA1105, since its memory wasn't
even allocated.

With enough bad luck, the out-of-bounds write could even overwrite other
valid kernel data, but in this case, the issue was detected using KASAN.

Kernel log:

sja1105 spi5.0: Probed switch chip: SJA1105Q
==================================================================
BUG: KASAN: slab-out-of-bounds in sja1105_setup+0x1cbc/0x2340
Write of size 8 at addr ffffff880bd57708 by task kworker/u8:0/8
...
Workqueue: events_unbound deferred_probe_work_func
Call trace:
...
sja1105_setup+0x1cbc/0x2340
dsa_register_switch+0x1284/0x18d0
sja1105_probe+0x748/0x840
...
Allocated by task 8:
...
sja1105_setup+0x1bcc/0x2340
dsa_register_switch+0x1284/0x18d0
sja1105_probe+0x748/0x840
...

Fixes: 38fbe91f2287 ("net: dsa: sja1105: configure the multicast policers, if present")
CC: stable@vger.kernel.org # 5.15+
Signed-off-by: Radu Nicolae Pirea (OSS) <radu-nicolae.pirea@oss.nxp.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20221207132347.38698-1-radu-nicolae.pirea@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

s390/qeth: fix use-after-free in hsci

KASAN found that addr was dereferenced after br2dev_event_work was freed.

==================================================================
BUG: KASAN: use-after-free in qeth_l2_br2dev_worker+0x5ba/0x6b0
Read of size 1 at addr 00000000fdcea440 by task kworker/u760:4/540
CPU: 17 PID: 540 Comm: kworker/u760:4 Tainted: G            E      6.1.0-20221128.rc7.git1.5aa3bed4ce83.300.fc36.s390x+kasan #1
Hardware name: IBM 8561 T01 703 (LPAR)
Workqueue: 0.0.8000_event qeth_l2_br2dev_worker
Call Trace:
 [<000000016944d4ce>] dump_stack_lvl+0xc6/0xf8
 [<000000016942cd9c>] print_address_description.constprop.0+0x34/0x2a0
 [<000000016942d118>] print_report+0x110/0x1f8
 [<0000000167a7bd04>] kasan_report+0xfc/0x128
 [<000000016938d79a>] qeth_l2_br2dev_worker+0x5ba/0x6b0
 [<00000001673edd1e>] process_one_work+0x76e/0x1128
 [<00000001673ee85c>] worker_thread+0x184/0x1098
 [<000000016740718a>] kthread+0x26a/0x310
 [<00000001672c606a>] __ret_from_fork+0x8a/0xe8
 [<00000001694711da>] ret_from_fork+0xa/0x40
Allocated by task 108338:
 kasan_save_stack+0x40/0x68
 kasan_set_track+0x36/0x48
 __kasan_kmalloc+0xa0/0xc0
 qeth_l2_switchdev_event+0x25a/0x738
 atomic_notifier_call_chain+0x9c/0xf8
 br_switchdev_fdb_notify+0xf4/0x110
 fdb_notify+0x122/0x180
 fdb_add_entry.constprop.0.isra.0+0x312/0x558
 br_fdb_add+0x59e/0x858
 rtnl_fdb_add+0x58a/0x928
 rtnetlink_rcv_msg+0x5f8/0x8d8
 netlink_rcv_skb+0x1f2/0x408
 netlink_unicast+0x570/0x790
 netlink_sendmsg+0x752/0xbe0
 sock_sendmsg+0xca/0x110
 ____sys_sendmsg+0x510/0x6a8
 ___sys_sendmsg+0x12a/0x180
 __sys_sendmsg+0xe6/0x168
 __do_sys_socketcall+0x3c8/0x468
 do_syscall+0x22c/0x328
 __do_syscall+0x94/0xf0
 system_call+0x82/0xb0
Freed by task 540:
 kasan_save_stack+0x40/0x68
 kasan_set_track+0x36/0x48
 kasan_save_free_info+0x4c/0x68
 ____kasan_slab_free+0x14e/0x1a8
 __kasan_slab_free+0x24/0x30
 __kmem_cache_free+0x168/0x338
 qeth_l2_br2dev_worker+0x154/0x6b0
 process_one_work+0x76e/0x1128
 worker_thread+0x184/0x1098
 kthread+0x26a/0x310
 __ret_from_fork+0x8a/0xe8
 ret_from_fork+0xa/0x40
Last potentially related work creation:
 kasan_save_stack+0x40/0x68
 __kasan_record_aux_stack+0xbe/0xd0
 insert_work+0x56/0x2e8
 __queue_work+0x4ce/0xd10
 queue_work_on+0xf4/0x100
 qeth_l2_switchdev_event+0x520/0x738
 atomic_notifier_call_chain+0x9c/0xf8
 br_switchdev_fdb_notify+0xf4/0x110
 fdb_notify+0x122/0x180
 fdb_add_entry.constprop.0.isra.0+0x312/0x558
 br_fdb_add+0x59e/0x858
 rtnl_fdb_add+0x58a/0x928
 rtnetlink_rcv_msg+0x5f8/0x8d8
 netlink_rcv_skb+0x1f2/0x408
 netlink_unicast+0x570/0x790
 netlink_sendmsg+0x752/0xbe0
 sock_sendmsg+0xca/0x110
 ____sys_sendmsg+0x510/0x6a8
 ___sys_sendmsg+0x12a/0x180
 __sys_sendmsg+0xe6/0x168
 __do_sys_socketcall+0x3c8/0x468
 do_syscall+0x22c/0x328
 __do_syscall+0x94/0xf0
 system_call+0x82/0xb0
Second to last potentially related work creation:
 kasan_save_stack+0x40/0x68
 __kasan_record_aux_stack+0xbe/0xd0
 kvfree_call_rcu+0xb2/0x760
 kernfs_unlink_open_file+0x348/0x430
 kernfs_fop_release+0xc2/0x320
 __fput+0x1ae/0x768
 task_work_run+0x1bc/0x298
 exit_to_user_mode_prepare+0x1a0/0x1a8
 __do_syscall+0x94/0xf0
 system_call+0x82/0xb0
The buggy address belongs to the object at 00000000fdcea400
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 64 bytes inside of
 96-byte region [00000000fdcea400, 00000000fdcea460)
The buggy address belongs to the physical page:
page:000000005a9c26e8 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xfdcea
flags: 0x3ffff00000000200(slab|node=0|zone=1|lastcpupid=0x1ffff)
raw: 3ffff00000000200 0000000000000000 0000000100000122 000000008008cc00
raw: 0000000000000000 0020004100000000 ffffffff00000001 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
 00000000fdcea300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 00000000fdcea380: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
>00000000fdcea400: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
                                           ^
 00000000fdcea480: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 00000000fdcea500: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================

Fixes: f7936b7b2663 ("s390/qeth: Update MACs of LEARNING_SYNC device")
Reported-by: Thorsten Winkler <twinkler@linux.ibm.com>
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com>
Link: https://lore.kernel.org/r/20221207105304.20494-1-wintera@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

macsec: add missing attribute validation for offload

Add missing attribute validation for IFLA_MACSEC_OFFLOAD
to the netlink policy.

Fixes: 791bb3fcafce ("net: macsec: add support for specifying offload upon link creation")
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/20221207101618.989-1-ehakim@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: mvneta: Fix an out of bounds check

In an earlier commit, I added a bounds check to prevent an out of bounds
read and a WARN().  On further discussion and consideration that check
was probably too aggressive.  Instead of returning -EINVAL, a better fix
would be to just prevent the out of bounds read but continue the process.

Background: The value of "pp->rxq_def" is a number between 0-7 by default,
or even higher depending on the value of "rxq_number", which is a module
parameter. If the value is more than the number of available CPUs then
it will trigger the WARN() in cpu_max_bits_warn().

Fixes: e8b4fc13900b ("net: mvneta: Prevent out of bounds read in mvneta_config_rss()")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/Y5A7d1E5ccwHTYPf@kadam
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: thunderbolt: fix memory leak in tbnet_open()

When tb_ring_alloc_rx() failed in tbnet_open(), ida that allocated in
tb_xdomain_alloc_out_hopid() is not released. Add
tb_xdomain_release_out_hopid() to the error path to release ida.

Fixes: 180b0689425c ("thunderbolt: Allow multiple DMA tunnels over a single XDomain connection")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20221207015001.1755826-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

docs/zh_CN: Add LoongArch booting description's translation

Translate ../loongarch/booting.rst into Chinese.

Suggested-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

docs/LoongArch: Add booting description

1, Describe the information passed from BootLoader to kernel.
2, Describe the meaning and values of the kernel image header field.

Suggested-by: Xiaotian Wu <wuxiaotian@loongson.cn>
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: mm: Fix huge page entry update for virtual machine

In virtual machine (guest mode), the tlbwr instruction can not write the
last entry of MTLB, so we need to make it non-present by invtlb and then
write it by tlbfill. This also simplify the whole logic.

Signed-off-by: Rui Wang <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: Export symbol for function smp_send_reschedule()

Function smp_send_reschedule() is standard kernel API, which is defined
in header file include/linux/smp.h. However, on LoongArch it is defined
as an inline function, this is confusing and kernel modules can not use
this function.

Now we define smp_send_reschedule() as a general function, and add a
EXPORT_SYMBOL_GPL on this function, so that kernel modules can use it.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

ipv6: avoid use-after-free in ip6_fragment()

Blamed commit claimed rcu_read_lock() was held by ip6_fragment() callers.

It seems to not be always true, at least for UDP stack.

syzbot reported:

BUG: KASAN: use-after-free in ip6_dst_idev include/net/ip6_fib.h:245 [inline]
BUG: KASAN: use-after-free in ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951
Read of size 8 at addr ffff88801d403e80 by task syz-executor.3/7618

CPU: 1 PID: 7618 Comm: syz-executor.3 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15e/0x45d mm/kasan/report.c:395
 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495
 ip6_dst_idev include/net/ip6_fib.h:245 [inline]
 ip6_fragment+0x2724/0x2770 net/ipv6/ip6_output.c:951
 __ip6_finish_output net/ipv6/ip6_output.c:193 [inline]
 ip6_finish_output+0x9a3/0x1170 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:445 [inline]
 ip6_local_out+0xb3/0x1a0 net/ipv6/output_core.c:161
 ip6_send_skb+0xbb/0x340 net/ipv6/ip6_output.c:1966
 udp_v6_send_skb+0x82a/0x18a0 net/ipv6/udp.c:1286
 udp_v6_push_pending_frames+0x140/0x200 net/ipv6/udp.c:1313
 udpv6_sendmsg+0x18da/0x2c80 net/ipv6/udp.c:1606
 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 sock_write_iter+0x295/0x3d0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2191 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xdd0 fs/read_write.c:584
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fde3588c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fde365b6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fde359ac050 RCX: 00007fde3588c0d9
RDX: 000000000000ffdc RSI: 00000000200000c0 RDI: 000000000000000a
RBP: 00007fde358e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fde35acfb1f R14: 00007fde365b6300 R15: 0000000000022000
 </TASK>

Allocated by task 7618:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x82/0x90 mm/kasan/common.c:325
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x2b4/0x3d0 mm/slub.c:3422
 dst_alloc+0x14a/0x1f0 net/core/dst.c:92
 ip6_dst_alloc+0x32/0xa0 net/ipv6/route.c:344
 ip6_rt_pcpu_alloc net/ipv6/route.c:1369 [inline]
 rt6_make_pcpu_route net/ipv6/route.c:1417 [inline]
 ip6_pol_route+0x901/0x1190 net/ipv6/route.c:2254
 pol_lookup_func include/net/ip6_fib.h:582 [inline]
 fib6_rule_lookup+0x52e/0x6f0 net/ipv6/fib6_rules.c:121
 ip6_route_output_flags_noref+0x2e6/0x380 net/ipv6/route.c:2625
 ip6_route_output_flags+0x76/0x320 net/ipv6/route.c:2638
 ip6_route_output include/net/ip6_route.h:98 [inline]
 ip6_dst_lookup_tail+0x5ab/0x1620 net/ipv6/ip6_output.c:1092
 ip6_dst_lookup_flow+0x90/0x1d0 net/ipv6/ip6_output.c:1222
 ip6_sk_dst_lookup_flow+0x553/0x980 net/ipv6/ip6_output.c:1260
 udpv6_sendmsg+0x151d/0x2c80 net/ipv6/udp.c:1554
 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 __sys_sendto+0x23a/0x340 net/socket.c:2117
 __do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 7599:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2e/0x40 mm/kasan/generic.c:511
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x160/0x1c0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1750
 slab_free mm/slub.c:3661 [inline]
 kmem_cache_free+0xee/0x5c0 mm/slub.c:3683
 dst_destroy+0x2ea/0x400 net/core/dst.c:127
 rcu_do_batch kernel/rcu/tree.c:2250 [inline]
 rcu_core+0x81f/0x1980 kernel/rcu/tree.c:2510
 __do_softirq+0x1fb/0xadc kernel/softirq.c:571

Last potentially related work creation:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481
 call_rcu+0x9d/0x820 kernel/rcu/tree.c:2798
 dst_release net/core/dst.c:177 [inline]
 dst_release+0x7d/0xe0 net/core/dst.c:167
 refdst_drop include/net/dst.h:256 [inline]
 skb_dst_drop include/net/dst.h:268 [inline]
 skb_release_head_state+0x250/0x2a0 net/core/skbuff.c:838
 skb_release_all net/core/skbuff.c:852 [inline]
 __kfree_skb net/core/skbuff.c:868 [inline]
 kfree_skb_reason+0x151/0x4b0 net/core/skbuff.c:891
 kfree_skb_list_reason+0x4b/0x70 net/core/skbuff.c:901
 kfree_skb_list include/linux/skbuff.h:1227 [inline]
 ip6_fragment+0x2026/0x2770 net/ipv6/ip6_output.c:949
 __ip6_finish_output net/ipv6/ip6_output.c:193 [inline]
 ip6_finish_output+0x9a3/0x1170 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:445 [inline]
 ip6_local_out+0xb3/0x1a0 net/ipv6/output_core.c:161
 ip6_send_skb+0xbb/0x340 net/ipv6/ip6_output.c:1966
 udp_v6_send_skb+0x82a/0x18a0 net/ipv6/udp.c:1286
 udp_v6_push_pending_frames+0x140/0x200 net/ipv6/udp.c:1313
 udpv6_sendmsg+0x18da/0x2c80 net/ipv6/udp.c:1606
 inet6_sendmsg+0x9d/0xe0 net/ipv6/af_inet6.c:665
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 sock_write_iter+0x295/0x3d0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2191 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x9ed/0xdd0 fs/read_write.c:584
 ksys_write+0x1ec/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Second to last potentially related work creation:
 kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481
 call_rcu+0x9d/0x820 kernel/rcu/tree.c:2798
 dst_release net/core/dst.c:177 [inline]
 dst_release+0x7d/0xe0 net/core/dst.c:167
 refdst_drop include/net/dst.h:256 [inline]
 skb_dst_drop include/net/dst.h:268 [inline]
 __dev_queue_xmit+0x1b9d/0x3ba0 net/core/dev.c:4211
 dev_queue_xmit include/linux/netdevice.h:3008 [inline]
 neigh_resolve_output net/core/neighbour.c:1552 [inline]
 neigh_resolve_output+0x51b/0x840 net/core/neighbour.c:1532
 neigh_output include/net/neighbour.h:546 [inline]
 ip6_finish_output2+0x56c/0x1530 net/ipv6/ip6_output.c:134
 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
 ip6_finish_output+0x694/0x1170 net/ipv6/ip6_output.c:206
 NF_HOOK_COND include/linux/netfilter.h:291 [inline]
 ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
 dst_output include/net/dst.h:445 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 NF_HOOK include/linux/netfilter.h:296 [inline]
 mld_sendpack+0xa09/0xe70 net/ipv6/mcast.c:1820
 mld_send_cr net/ipv6/mcast.c:2121 [inline]
 mld_ifc_work+0x720/0xdc0 net/ipv6/mcast.c:2653
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

The buggy address belongs to the object at ffff88801d403dc0
 which belongs to the cache ip6_dst_cache of size 240
The buggy address is located 192 bytes inside of
 240-byte region [ffff88801d403dc0, ffff88801d403eb0)

The buggy address belongs to the physical page:
page:ffffea00007500c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d403
memcg:ffff888022f49c81
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea0001ef6580 dead000000000002 ffff88814addf640
raw: 0000000000000000 00000000800c000c 00000001ffffffff ffff888022f49c81
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 3719, tgid 3719 (kworker/0:6), ts 136223432244, free_ts 136222971441
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4288
 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5555
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2285
 alloc_slab_page mm/slub.c:1794 [inline]
 allocate_slab+0x213/0x300 mm/slub.c:1939
 new_slab mm/slub.c:1992 [inline]
 ___slab_alloc+0xa91/0x1400 mm/slub.c:3180
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279
 slab_alloc_node mm/slub.c:3364 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x31a/0x3d0 mm/slub.c:3422
 dst_alloc+0x14a/0x1f0 net/core/dst.c:92
 ip6_dst_alloc+0x32/0xa0 net/ipv6/route.c:344
 icmp6_dst_alloc+0x71/0x680 net/ipv6/route.c:3261
 mld_sendpack+0x5de/0xe70 net/ipv6/mcast.c:1809
 mld_send_cr net/ipv6/mcast.c:2121 [inline]
 mld_ifc_work+0x720/0xdc0 net/ipv6/mcast.c:2653
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509
 free_unref_page_prepare mm/page_alloc.c:3387 [inline]
 free_unref_page+0x1d/0x4d0 mm/page_alloc.c:3483
 __unfreeze_partials+0x17c/0x1a0 mm/slub.c:2586
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x66/0x90 mm/kasan/common.c:302
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 kmem_cache_alloc_node+0x304/0x410 mm/slub.c:3443
 __alloc_skb+0x214/0x300 net/core/skbuff.c:497
 alloc_skb include/linux/skbuff.h:1267 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1191 [inline]
 netlink_sendmsg+0x9a6/0xe10 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 __sys_sendto+0x23a/0x340 net/socket.c:2117
 __do_sys_sendto net/socket.c:2129 [inline]
 __se_sys_sendto net/socket.c:2125 [inline]
 __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: 1758fd4688eb ("ipv6: remove unnecessary dst_hold() in ip6_fragment()")
Reported-by: syzbot+8c0ac31aa9681abb9e2d@syzkaller.appspotmail.com
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wei Wang <weiwan@google.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20221206101351.2037285-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: plip: don't call kfree_skb/dev_kfree_skb() under spin_lock_irq()

It is not allowed to call kfree_skb() or consume_skb() from
hardware interrupt context or with interrupts being disabled.
So replace kfree_skb/dev_kfree_skb() with dev_kfree_skb_irq()
and dev_consume_skb_irq() under spin_lock_irq().

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20221207015310.2984909-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: phy: mxl-gpy: add MDINT workaround

At least the GPY215B and GPY215C has a bug where it is still driving the
interrupt line (MDINT) even after the interrupt status register is read
and its bits are cleared. This will cause an interrupt storm.

Although the MDINT is multiplexed with a GPIO pin and theoretically we
could switch the pinmux to GPIO input mode, this isn't possible because
the access to this register will stall exactly as long as the interrupt
line is asserted. We exploit this very fact and just read a random
internal register in our interrupt handler. This way, it will be delayed
until the external interrupt line is released and an interrupt storm is
avoided.

The internal register access via the mailbox was deduced by looking at
the downstream PHY API because the datasheet doesn't mention any of
this.

Fixes: 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20221205200453.3447866-1-michael@walle.cc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge tag 'linux-can-fixes-for-6.1-20221207' of git://git./linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2022-12-07

The 1st patch is by Oliver Hartkopp and fixes a potential NULL pointer
deref found by syzbot in the AF_CAN protocol.

The next 2 patches are by Jiri Slaby and Max Staudt and add the
missing flush_work() before freeing the underlying memory in the slcan
and can327 driver.

The last patch is by Frank Jungclaus and target the esd_usb driver and
fixes the CAN error counters, allowing them to return to zero.

* tag 'linux-can-fixes-for-6.1-20221207' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: esd_usb: Allow REC and TEC to return to zero
  can: can327: flush TX_work on ldisc .close()
  can: slcan: fix freed work crash
  can: af_can: fix NULL pointer dereference in can_rcv_filter
====================

Link: https://lore.kernel.org/r/20221207105243.2483884-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge tag 'platform-drivers-x86-v6.1-5' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fix from Hans de Goede:
 "A single fix for 6.1 for suspend/resume issues on some AMD systems"

* tag 'platform-drivers-x86-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86/amd: pmc: Add a workaround for an s0i3 issue on Cezanne

fscache: Fix oops due to race with cookie_lru and use_cookie

If a cookie expires from the LRU and the LRU_DISCARD flag is set, but
the state machine has not run yet, it's possible another thread can call
fscache_use_cookie and begin to use it.

When the cookie_worker finally runs, it will see the LRU_DISCARD flag
set, transition the cookie->state to LRU_DISCARDING, which will then
withdraw the cookie.  Once the cookie is withdrawn the object is removed
the below oops will occur because the object associated with the cookie
is now NULL.

Fix the oops by clearing the LRU_DISCARD bit if another thread uses the
cookie before the cookie_worker runs.

  BUG: kernel NULL pointer dereference, address: 0000000000000008
  ...
  CPU: 31 PID: 44773 Comm: kworker/u130:1 Tainted: G     E    6.0.0-5.dneg.x86_64 #1
  Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
  Workqueue: events_unbound netfs_rreq_write_to_cache_work [netfs]
  RIP: 0010:cachefiles_prepare_write+0x28/0x90 [cachefiles]
  ...
  Call Trace:
    netfs_rreq_write_to_cache_work+0x11c/0x320 [netfs]
    process_one_work+0x217/0x3e0
    worker_thread+0x4a/0x3b0
    kthread+0xd6/0x100

Fixes: 12bb21a29c19 ("fscache: Implement cookie user counting and resource pinning")
Reported-by: Daire Byrne <daire.byrne@gmail.com>
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Daire Byrne <daire@dneg.com>
Link: https://lore.kernel.org/r/20221117115023.1350181-1-dwysocha@redhat.com/
Link: https://lore.kernel.org/r/20221117142915.1366990-1-dwysocha@redhat.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

media: videobuf2-core: take mmap_lock in vb2_get_unmapped_area()

While vb2_mmap took the mmap_lock mutex, vb2_get_unmapped_area didn't.
Add this.

Also take this opportunity to move the 'q->memory != VB2_MEMORY_MMAP'
check and vb2_fileio_is_active() check into __find_plane_by_offset() so
both vb2_mmap and vb2_get_unmapped_area do the same checks.

Since q->memory is checked while mmap_lock is held, also take that lock
in reqbufs and create_bufs when it is set, and set it back to
MEMORY_UNKNOWN on error.

Fixes: f035eb4e976e ("[media] videobuf2: fix lockdep warning")
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net: dsa: mv88e6xxx: accept phy-mode = "internal" for internal PHY ports

The ethernet-controller dt-schema, mostly pushed forward by Linux, has
the "internal" PHY mode for denoting MAC connections to an internal PHY.

U-Boot may provide device tree blobs where this phy-mode is specified,
so make the Linux driver accept them.

It appears that the current behavior with phy-mode = "internal" was
introduced when mv88e6xxx started reporting supported_interfaces to
phylink. Prior to that, I don't think it would have any issues accepting
this phy-mode.

Fixes: d4ebf12bcec4 ("net: dsa: mv88e6xxx: populate supported_interfaces and mac_capabilities")
Link: https://lore.kernel.org/linux-arm-kernel/20221205172709.kglithpbhdbsakvd@skbuf/T/
Reported-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Tim Harvey <tharvey@gateworks.com> # imx6q-gw904.dts
Link: https://lore.kernel.org/r/20221205194845.2131161-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

xen/netback: fix build warning

Commit ad7f402ae4f4 ("xen/netback: Ensure protocol headers don't fall in
the non-linear area") introduced a (valid) build warning. There have
even been reports of this problem breaking networking of Xen guests.

Fixes: ad7f402ae4f4 ("xen/netback: Ensure protocol headers don't fall in the non-linear area")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>

xen/netback: don't call kfree_skb() under spin_lock_irqsave()

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So replace kfree_skb()
with dev_kfree_skb_irq() under spin_lock_irqsave().

Fixes: be81992f9086 ("xen/netback: don't queue unlimited number of packages")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20221205141333.3974565-1-yangyingliang@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

platform/x86/amd: pmc: Add a workaround for an s0i3 issue on Cezanne

Cezanne platforms under the right circumstances have a synchronization
problem where attempting to enter s2idle may fail if the x86 cores are
put into HLT before hardware resume from the previous attempt has
completed.

To avoid this issue add a 10-20ms delay before entering s2idle another
time. This workaround will only be applied on interrupts that wake the
hardware but don't break the s2idle loop.

Cc: stable@vger.kernel.org # 6.1
Cc: "Mahapatra, Rajib" <Rajib.Mahapatra@amd.com>
Cc: "Raul Rangel" <rrangel@chromium.org>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20221116154341.13382-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

io_uring: Fix a null-ptr-deref in io_tctx_exit_cb()

Syzkaller reports a NULL deref bug as follows:

 BUG: KASAN: null-ptr-deref in io_tctx_exit_cb+0x53/0xd3
 Read of size 4 at addr 0000000000000138 by task file1/1955

 CPU: 1 PID: 1955 Comm: file1 Not tainted 6.1.0-rc7-00103-gef4d3ea40565 #75
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014
 Call Trace:
  <TASK>
  dump_stack_lvl+0xcd/0x134
  ? io_tctx_exit_cb+0x53/0xd3
  kasan_report+0xbb/0x1f0
  ? io_tctx_exit_cb+0x53/0xd3
  kasan_check_range+0x140/0x190
  io_tctx_exit_cb+0x53/0xd3
  task_work_run+0x164/0x250
  ? task_work_cancel+0x30/0x30
  get_signal+0x1c3/0x2440
  ? lock_downgrade+0x6e0/0x6e0
  ? lock_downgrade+0x6e0/0x6e0
  ? exit_signals+0x8b0/0x8b0
  ? do_raw_read_unlock+0x3b/0x70
  ? do_raw_spin_unlock+0x50/0x230
  arch_do_signal_or_restart+0x82/0x2470
  ? kmem_cache_free+0x260/0x4b0
  ? putname+0xfe/0x140
  ? get_sigframe_size+0x10/0x10
  ? do_execveat_common.isra.0+0x226/0x710
  ? lockdep_hardirqs_on+0x79/0x100
  ? putname+0xfe/0x140
  ? do_execveat_common.isra.0+0x238/0x710
  exit_to_user_mode_prepare+0x15f/0x250
  syscall_exit_to_user_mode+0x19/0x50
  do_syscall_64+0x42/0xb0
  entry_SYSCALL_64_after_hwframe+0x63/0xcd
 RIP: 0023:0x0
 Code: Unable to access opcode bytes at 0xffffffffffffffd6.
 RSP: 002b:00000000fffb7790 EFLAGS: 00000200 ORIG_RAX: 000000000000000b
 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
  </TASK>
 Kernel panic - not syncing: panic_on_warn set ...

This happens because the adding of task_work from io_ring_exit_work()
isn't synchronized with canceling all work items from eg exec. The
execution of the two are ordered in that they are both run by the task
itself, but if io_tctx_exit_cb() is queued while we're canceling all
work items off exec AND gets executed when the task exits to userspace
rather than in the main loop in io_uring_cancel_generic(), then we can
find current->io_uring == NULL and hit the above crash.

It's safe to add this NULL check here, because the execution of the two
paths are done by the task itself.

Cc: stable@vger.kernel.org
Fixes: d56d938b4bef ("io_uring: do ctx initiated file note removal")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20221206093833.3812138-1-harshit.m.mogalapalli@oracle.com
[axboe: add code comment and also put an explanation in the commit msg]
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Merge tag 'ieee802154-for-net-2022-12-05' of git://git./linux/kernel/git/sschmidt/wpan

Stefan Schmidt says:

====================
pull-request: ieee802154 for net 2022-12-05

An update from ieee802154 for your *net* tree:

Three small fixes this time around.

Ziyang Xuan fixed an error code for a timeout during initialization of the
cc2520 driver.
Hauke Mehrtens fixed a crash in the ca8210 driver SPI communication due
uninitialized SPI structures.
Wei Yongjun added INIT_LIST_HEAD ieee802154_if_add() to avoid a potential
null pointer dereference.
====================

Link: https://lore.kernel.org/r/20221205122515.1720539-1-stefan@datenfreihafen.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

dpaa2-switch: Fix memory leak in dpaa2_switch_acl_entry_add() and dpaa2_switch_acl_entry_remove()

The cmd_buff needs to be freed when error happened in
dpaa2_switch_acl_entry_add() and dpaa2_switch_acl_entry_remove().

Fixes: 1110318d83e8 ("dpaa2-switch: add tc flower hardware offload on ingress traffic")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221205061515.115012-1-yuancan@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

ethernet: aeroflex: fix potential skb leak in greth_init_rings()

The greth_init_rings() function won't free the newly allocated skb when
dma_mapping_error() returns error, so add dev_kfree_skb() to fix it.

Compile tested only.

Fixes: d4c41139df6e ("net: Add Aeroflex Gaisler 10/100/1G Ethernet MAC driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/1670134149-29516-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

tipc: call tipc_lxc_xmit without holding node_read_lock

When sending packets between nodes in netns, it calls tipc_lxc_xmit() for
peer node to receive the packets where tipc_sk_mcast_rcv()/tipc_sk_rcv()
might be called, and it's pretty much like in tipc_rcv().

Currently the local 'node rw lock' is held during calling tipc_lxc_xmit()
to protect the peer_net not being freed by another thread. However, when
receiving these packets, tipc_node_add_conn() might be called where the
peer 'node rw lock' is acquired. Then a dead lock warning is triggered by
lockdep detector, although it is not a real dead lock:

    WARNING: possible recursive locking detected
    --------------------------------------------
    conn_server/1086 is trying to acquire lock:
    ffff8880065cb020 (&n->lock#2){++--}-{2:2}, \
                     at: tipc_node_add_conn.cold.76+0xaa/0x211 [tipc]

    but task is already holding lock:
    ffff8880065cd020 (&n->lock#2){++--}-{2:2}, \
                     at: tipc_node_xmit+0x285/0xb30 [tipc]

    other info that might help us debug this:
     Possible unsafe locking scenario:

           CPU0
           ----
      lock(&n->lock#2);
      lock(&n->lock#2);

     *** DEADLOCK ***

     May be due to missing lock nesting notation

    4 locks held by conn_server/1086:
     #0: ffff8880036d1e40 (sk_lock-AF_TIPC){+.+.}-{0:0}, \
                          at: tipc_accept+0x9c0/0x10b0 [tipc]
     #1: ffff8880036d5f80 (sk_lock-AF_TIPC/1){+.+.}-{0:0}, \
                          at: tipc_accept+0x363/0x10b0 [tipc]
     #2: ffff8880065cd020 (&n->lock#2){++--}-{2:2}, \
                          at: tipc_node_xmit+0x285/0xb30 [tipc]
     #3: ffff888012e13370 (slock-AF_TIPC){+...}-{2:2}, \
                          at: tipc_sk_rcv+0x2da/0x1b40 [tipc]

    Call Trace:
     <TASK>
     dump_stack_lvl+0x44/0x5b
     __lock_acquire.cold.77+0x1f2/0x3d7
     lock_acquire+0x1d2/0x610
     _raw_write_lock_bh+0x38/0x80
     tipc_node_add_conn.cold.76+0xaa/0x211 [tipc]
     tipc_sk_finish_conn+0x21e/0x640 [tipc]
     tipc_sk_filter_rcv+0x147b/0x3030 [tipc]
     tipc_sk_rcv+0xbb4/0x1b40 [tipc]
     tipc_lxc_xmit+0x225/0x26b [tipc]
     tipc_node_xmit.cold.82+0x4a/0x102 [tipc]
     __tipc_sendstream+0x879/0xff0 [tipc]
     tipc_accept+0x966/0x10b0 [tipc]
     do_accept+0x37d/0x590

This patch avoids this warning by not holding the 'node rw lock' before
calling tipc_lxc_xmit(). As to protect the 'peer_net', rcu_read_lock()
should be enough, as in cleanup_net() when freeing the netns, it calls
synchronize_rcu() before the free is continued.

Also since tipc_lxc_xmit() is like the RX path in tipc_rcv(), it makes
sense to call it under rcu_read_lock(). Note that the right lock order
must be:

   rcu_read_lock();
   tipc_node_read_lock(n);
   tipc_node_read_unlock(n);
   tipc_lxc_xmit();
   rcu_read_unlock();

instead of:

   tipc_node_read_lock(n);
   rcu_read_lock();
   tipc_node_read_unlock(n);
   tipc_lxc_xmit();
   rcu_read_unlock();

and we have to call tipc_node_read_lock/unlock() twice in
tipc_node_xmit().

Fixes: f73b12812a3d ("tipc: improve throughput between nodes in netns")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/5bdd1f8fee9db695cfff4528a48c9b9d0523fb00.1670110641.git.lucien.xin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

can: esd_usb: Allow REC and TEC to return to zero

We don't get any further EVENT from an esd CAN USB device for changes
on REC or TEC while those counters converge to 0 (with ecc == 0). So
when handling the "Back to Error Active"-event force txerr = rxerr =
0, otherwise the berr-counters might stay on values like 95 forever.

Also, to make life easier during the ongoing development a
netdev_dbg() has been introduced to allow dumping error events send by
an esd CAN USB device.

Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device")
Signed-off-by: Frank Jungclaus <frank.jungclaus@esd.eu>
Link: https://lore.kernel.org/all/20221130202242.3998219-2-frank.jungclaus@esd.eu
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

can: can327: flush TX_work on ldisc .close()

Additionally, remove it from .ndo_stop().

This ensures that the worker is not called after being freed, and that
the UART TX queue remains active to send final commands when the
netdev is stopped.

Thanks to Jiri Slaby for finding this in slcan:

  https://lore.kernel.org/linux-can/20221201073426.17328-1-jirislaby@kernel.org/

A variant of this patch for slcan, with the flush in .ndo_stop() still
present, has been tested successfully on physical hardware:

  https://bugzilla.suse.com/show_bug.cgi?id=1205597

Fixes: 43da2f07622f ("can: can327: CAN/ldisc driver for ELM327 based OBD-II adapters")
Cc: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Max Staudt <max@enpas.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Max Staudt <max@enpas.org>
Link: https://lore.kernel.org/all/20221202160148.282564-1-max@enpas.org
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

can: slcan: fix freed work crash

The LTP test pty03 is causing a crash in slcan:
  BUG: kernel NULL pointer dereference, address: 0000000000000008
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 0 PID: 348 Comm: kworker/0:3 Not tainted 6.0.8-1-default #1 openSUSE Tumbleweed 9d20364b934f5aab0a9bdf84e8f45cfdfae39dab
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b-rebuilt.opensuse.org 04/01/2014
  Workqueue:  0x0 (events)
  RIP: 0010:process_one_work (/home/rich/kernel/linux/kernel/workqueue.c:706 /home/rich/kernel/linux/kernel/workqueue.c:2185)
  Code: 49 89 ff 41 56 41 55 41 54 55 53 48 89 f3 48 83 ec 10 48 8b 06 48 8b 6f 48 49 89 c4 45 30 e4 a8 04 b8 00 00 00 00 4c 0f 44 e0 <49> 8b 44 24 08 44 8b a8 00 01 00 00 41 83 e5 20 f6 45 10 04 75 0e
  RSP: 0018:ffffaf7b40f47e98 EFLAGS: 00010046
  RAX: 0000000000000000 RBX: ffff9d644e1b8b48 RCX: ffff9d649e439968
  RDX: 00000000ffff8455 RSI: ffff9d644e1b8b48 RDI: ffff9d64764aa6c0
  RBP: ffff9d649e4335c0 R08: 0000000000000c00 R09: ffff9d64764aa734
  R10: 0000000000000007 R11: 0000000000000001 R12: 0000000000000000
  R13: ffff9d649e4335e8 R14: ffff9d64490da780 R15: ffff9d64764aa6c0
  FS:  0000000000000000(0000) GS:ffff9d649e400000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000008 CR3: 0000000036424000 CR4: 00000000000006f0
  Call Trace:
   <TASK>
  worker_thread (/home/rich/kernel/linux/kernel/workqueue.c:2436)
  kthread (/home/rich/kernel/linux/kernel/kthread.c:376)
  ret_from_fork (/home/rich/kernel/linux/arch/x86/entry/entry_64.S:312)

Apparently, the slcan's tx_work is freed while being scheduled. While
slcan_netdev_close() (netdev side) calls flush_work(&sl->tx_work),
slcan_close() (tty side) does not. So when the netdev is never set UP,
but the tty is stuffed with bytes and forced to wakeup write, the work
is scheduled, but never flushed.

So add an additional flush_work() to slcan_close() to be sure the work
is flushed under all circumstances.

The Fixes commit below moved flush_work() from slcan_close() to
slcan_netdev_close(). What was the rationale behind it? Maybe we can
drop the one in slcan_netdev_close()?

I see the same pattern in can327. So it perhaps needs the very same fix.

Fixes: cfcb4465e992 ("can: slcan: remove legacy infrastructure")
Link: https://bugzilla.suse.com/show_bug.cgi?id=1205597
Reported-by: Richard Palethorpe <richard.palethorpe@suse.com>
Tested-by: Petr Vorel <petr.vorel@suse.com>
Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org
Cc: Max Staudt <max@enpas.org>
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Reviewed-by: Max Staudt <max@enpas.org>
Link: https://lore.kernel.org/all/20221201073426.17328-1-jirislaby@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

can: af_can: fix NULL pointer dereference in can_rcv_filter

Analogue to commit 8aa59e355949 ("can: af_can: fix NULL pointer
dereference in can_rx_register()") we need to check for a missing
initialization of ml_priv in the receive path of CAN frames.

Since commit 4e096a18867a ("net: introduce CAN specific pointer in the
struct net_device") the check for dev->type to be ARPHRD_CAN is not
sufficient anymore since bonding or tun netdevices claim to be CAN
devices but do not initialize ml_priv accordingly.

Fixes: 4e096a18867a ("net: introduce CAN specific pointer in the struct net_device")
Reported-by: syzbot+2d7f58292cb5b29eb5ad@syzkaller.appspotmail.com
Reported-by: Wei Chen <harperchen1110@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20221206201259.3028-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Merge branch '40GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-12-05 (i40e)

Michal clears XPS init flag on reset to allow for updated values to be
written.

Sylwester adds sleep to VF reset to resolve issue of VFs not getting
resources.

Przemyslaw rejects filters for raw IPv4 or IPv6 l4_4_bytes filters as they
 are not supported.

* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  i40e: Disallow ip4 and ip6 l4_4_bytes
  i40e: Fix for VF MAC address 0
  i40e: Fix not setting default xps_cpus after reset
====================

Link: https://lore.kernel.org/r/20221205212523.3197565-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: dsa: sja1105: fix memory leak in sja1105_setup_devlink_regions()

When dsa_devlink_region_create failed in sja1105_setup_devlink_regions(),
priv->regions is not released.

Fixes: bf425b82059e ("net: dsa: sja1105: expose static config as devlink region")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221205012132.2110979-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge branch 'ipv4-two-bug-fixes'

Ido Schimmel says:

====================
ipv4: Two small fixes for bugs in IPv4 routing code.

A variation of the second bug was reported by an FRR 5.0 (released
06/18) user as this version was setting a table ID of 0 for the
default VRF, unlike iproute2 and newer FRR versions.

The first bug was discovered while fixing the second.

Both bugs are not regressions (never worked) and are not critical
in my opinion, so the fixes can be applied to net-next, if desired.

No regressions in other tests:

 # ./fib_tests.sh
 ...
 Tests passed: 191
 Tests failed:   0
====================

Link: https://lore.kernel.org/r/20221204075045.3780097-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ipv4: Fix incorrect route flushing when table ID 0 is used

Cited commit added the table ID to the FIB info structure, but did not
properly initialize it when table ID 0 is used. This can lead to a route
in the default VRF with a preferred source address not being flushed
when the address is deleted.

Consider the following example:

 # ip address add dev dummy1 192.0.2.1/28
 # ip address add dev dummy1 192.0.2.17/28
 # ip route add 198.51.100.0/24 via 192.0.2.2 src 192.0.2.17 metric 100
 # ip route add table 0 198.51.100.0/24 via 192.0.2.2 src 192.0.2.17 metric 200
 # ip route show 198.51.100.0/24
 198.51.100.0/24 via 192.0.2.2 dev dummy1 src 192.0.2.17 metric 100
 198.51.100.0/24 via 192.0.2.2 dev dummy1 src 192.0.2.17 metric 200

Both routes are installed in the default VRF, but they are using two
different FIB info structures. One with a metric of 100 and table ID of
254 (main) and one with a metric of 200 and table ID of 0. Therefore,
when the preferred source address is deleted from the default VRF,
the second route is not flushed:

 # ip address del dev dummy1 192.0.2.17/28
 # ip route show 198.51.100.0/24
 198.51.100.0/24 via 192.0.2.2 dev dummy1 src 192.0.2.17 metric 200

Fix by storing a table ID of 254 instead of 0 in the route configuration
structure.

Add a test case that fails before the fix:

 # ./fib_tests.sh -t ipv4_del_addr

 IPv4 delete address route tests
     Regular FIB info
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Identical FIB info with different table ID
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Table ID 0
     TEST: Route removed in default VRF when source address deleted      [FAIL]

 Tests passed:   8
 Tests failed:   1

And passes after:

 # ./fib_tests.sh -t ipv4_del_addr

 IPv4 delete address route tests
     Regular FIB info
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Identical FIB info with different table ID
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Table ID 0
     TEST: Route removed in default VRF when source address deleted      [ OK ]

 Tests passed:   9
 Tests failed:   0

Fixes: 5a56a0b3a45d ("net: Don't delete routes in different VRFs")
Reported-by: Donald Sharp <sharpd@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ipv4: Fix incorrect route flushing when source address is deleted

Cited commit added the table ID to the FIB info structure, but did not
prevent structures with different table IDs from being consolidated.
This can lead to routes being flushed from a VRF when an address is
deleted from a different VRF.

Fix by taking the table ID into account when looking for a matching FIB
info. This is already done for FIB info structures backed by a nexthop
object in fib_find_info_nh().

Add test cases that fail before the fix:

 # ./fib_tests.sh -t ipv4_del_addr

 IPv4 delete address route tests
     Regular FIB info
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Identical FIB info with different table ID
     TEST: Route removed from VRF when source address deleted            [FAIL]
     TEST: Route in default VRF not removed                              [ OK ]
 RTNETLINK answers: File exists
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [FAIL]

 Tests passed:   6
 Tests failed:   2

And pass after:

 # ./fib_tests.sh -t ipv4_del_addr

 IPv4 delete address route tests
     Regular FIB info
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]
     Identical FIB info with different table ID
     TEST: Route removed from VRF when source address deleted            [ OK ]
     TEST: Route in default VRF not removed                              [ OK ]
     TEST: Route removed in default VRF when source address deleted      [ OK ]
     TEST: Route in VRF is not removed by address delete                 [ OK ]

 Tests passed:   8
 Tests failed:   0

Fixes: 5a56a0b3a45d ("net: Don't delete routes in different VRFs")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: fec: properly guard irq coalesce setup

Prior to the Fixes: commit, the initialization code went through the
same fec_enet_set_coalesce() function as used by ethtool, and that
function correctly checks whether the current variant has support for
irq coalescing.

Now that the initialization code instead calls fec_enet_itr_coal_set()
directly, that call needs to be guarded by a check for the
FEC_QUIRK_HAS_COALESCE bit.

Fixes: df727d4547de (net: fec: don't reset irq coalesce settings to defaults on "ip link up")
Reported-by: Greg Ungerer <gregungerer@westnet.com.au>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221205204604.869853-1-linux@rasmusvillemoes.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

bonding: get correct NA dest address

In commit 4d633d1b468b ("bonding: fix ICMPv6 header handling when receiving
IPv6 messages"), there is a copy/paste issue for NA daddr. I found that
in my testing and fixed it in my local branch. But I forgot to re-format
the patch and sent the wrong mail.

Fix it by reading the correct dest address.

Fixes: 4d633d1b468b ("bonding: fix ICMPv6 header handling when receiving IPv6 messages")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Jonathan Toppins <jtoppins@redhat.com>
Link: https://lore.kernel.org/r/20221206032055.7517-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ata: libahci_platform: ahci_platform_find_clk: oops, NULL pointer

When booting a arm 32-bit kernel with config CONFIG_AHCI_DWC enabled on
a am57xx-evm board. This happens when the clock references are unnamed
in DT, the strcmp() produces a NULL pointer dereference, see the
following oops, NULL pointer dereference:

[    4.673950] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[    4.682098] [00000000] *pgd=00000000
[    4.685699] Internal error: Oops: 5 [#1] SMP ARM
[    4.690338] Modules linked in:
[    4.693420] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.0-rc7 #1
[    4.699615] Hardware name: Generic DRA74X (Flattened Device Tree)
[    4.705749] PC is at strcmp+0x0/0x34
[    4.709350] LR is at ahci_platform_find_clk+0x3c/0x5c
[    4.714416] pc : [<c130c494>]    lr : [<c0c230e0>]    psr: 20000013
[    4.720703] sp : f000dda8  ip : 00000001  fp : c29b1840
[    4.725952] r10: 00000020  r9 : c1b23380  r8 : c1b23368
[    4.731201] r7 : c1ab4cc4  r6 : 00000001  r5 : c3c66040  r4 : 00000000
[    4.737762] r3 : 00000080  r2 : 00000080  r1 : c1ab4cc4  r0 : 00000000
[...]
[    4.998870]  strcmp from ahci_platform_find_clk+0x3c/0x5c
[    5.004302]  ahci_platform_find_clk from ahci_dwc_probe+0x1f0/0x54c
[    5.010589]  ahci_dwc_probe from platform_probe+0x64/0xc0
[    5.016021]  platform_probe from really_probe+0xe8/0x41c
[    5.021362]  really_probe from __driver_probe_device+0xa4/0x204
[    5.027313]  __driver_probe_device from driver_probe_device+0x38/0xc8
[    5.033782]  driver_probe_device from __driver_attach+0xb4/0x1ec
[    5.039825]  __driver_attach from bus_for_each_dev+0x78/0xb8
[    5.045532]  bus_for_each_dev from bus_add_driver+0x17c/0x220
[    5.051300]  bus_add_driver from driver_register+0x90/0x124
[    5.056915]  driver_register from do_one_initcall+0x48/0x1e8
[    5.062591]  do_one_initcall from kernel_init_freeable+0x1cc/0x234
[    5.068817]  kernel_init_freeable from kernel_init+0x20/0x13c
[    5.074584]  kernel_init from ret_from_fork+0x14/0x2c
[    5.079681] Exception stack(0xf000dfb0 to 0xf000dff8)
[    5.084747] dfa0:                                     00000000 00000000 00000000 00000000
[    5.092956] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    5.101165] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    5.107818] Code: e5e32001 e3520000 1afffffb e12fff1e (e4d03001)
[    5.114013] ---[ end trace 0000000000000000 ]---

Add an extra check in the if-statement if hpriv-clks[i].id.

Fixes: 6ce73f3a6fc0 ("ata: libahci_platform: Add function returning a clock-handle by id")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Revert the dropping of the cache invalidation from the arm64
  arch_dma_prep_coherent() as it caused a regression in the
  qcom_q6v5_mss remoteproc driver.

  The driver is already buggy but the original arm64 change made
  the problem obvious. The change will be re-introduced once the
  driver is fixed"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()"

Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Unless anything comes from the ARM side, this should be the last pull
  request for this release - and it's mostly documentation:

   - Document the interaction between KVM_CAP_HALT_POLL and halt_poll_ns

   - s390: fix multi-epoch extension in nested guests

   - x86: fix uninitialized variable on nested triple fault"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Document the interaction between KVM_CAP_HALT_POLL and halt_poll_ns
  KVM: Move halt-polling documentation into common directory
  KVM: x86: fix uninitialized variable use on KVM_REQ_TRIPLE_FAULT
  KVM: s390: vsie: Fix the initialization of the epoch extension (epdx) field

Merge tag 'for-linus-xsa-6.1-rc9-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Two zero-day fixes for the xen-netback driver (XSA-423 and XSA-424)"

* tag 'for-linus-xsa-6.1-rc9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/netback: don't call kfree_skb() with interrupts disabled
  xen/netback: Ensure protocol headers don't fall in the non-linear area

Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()"

This reverts commit c44094eee32f32f175aadc0efcac449d99b1bbf7.

Although the semantics of the DMA API require only a clean operation
here, it turns out that the Qualcomm 'qcom_q6v5_mss' remoteproc driver
(ab)uses the DMA API for transferring the modem firmware to the secure
world via calls to Trustzone [1].

Once the firmware buffer has changed hands, _any_ access from the
non-secure side (i.e. Linux) will be detected on the bus and result in a
full system reset [2]. Although this is possible even with this revert
in place (due to speculative reads via the cacheable linear alias of
memory), anecdotally the problem occurs considerably more frequently
when the lines have not been invalidated, assumedly due to some
micro-architectural interactions with the cache hierarchy.

Revert the offending change for now, along with a comment, so that the
Qualcomm developers have time to fix the driver [3] to use a firmware
buffer which does not have a cacheable alias in the linear map.

Link: https://lore.kernel.org/r/20221114110329.68413-1-manivannan.sadhasivam@linaro.org
Link: https://lore.kernel.org/r/CAMi1Hd3H2k1J8hJ6e-Miy5+nVDNzv6qQ3nN-9929B0GbHJkXEg@mail.gmail.com/
Link: https://lore.kernel.org/r/20221206092152.GD15486@thinkpad
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Reported-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Will Deacon <will@kernel.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20221206103403.646-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

xen/netback: don't call kfree_skb() with interrupts disabled

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So remove kfree_skb()
from the spin_lock_irqsave() section and use the already existing
"drop" label in xenvif_start_xmit() for dropping the SKB. At the
same time replace the dev_kfree_skb() call there with a call of
dev_kfree_skb_any(), as xenvif_start_xmit() can be called with
disabled interrupts.

This is XSA-424 / CVE-2022-42328 / CVE-2022-42329.

Fixes: be81992f9086 ("xen/netback: don't queue unlimited number of packages")
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>

xen/netback: Ensure protocol headers don't fall in the non-linear area

In some cases, the frontend may send a packet where the protocol headers
are spread across multiple slots. This would result in netback creating
an skb where the protocol headers spill over into the non-linear area.
Some drivers and NICs don't handle this properly resulting in an
interface reset or worse.

This issue was introduced by the removal of an unconditional skb pull in
the tx path to improve performance.  Fix this without reintroducing the
pull by setting up grant copy ops for as many slots as needed to reach
the XEN_NETBACK_TX_COPY_LEN size. Adjust the rest of the code to handle
multiple copy operations per skb.

This is XSA-423 / CVE-2022-3643.

Fixes: 7e5d7753956b ("xen-netback: remove unconditional __pskb_pull_tail() in guest Tx path")
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>

tipc: Fix potential OOB in tipc_link_proto_rcv()

Fix the potential risk of OOB if skb_linearize() fails in
tipc_link_proto_rcv().

Fixes: 5cbb28a4bf65 ("tipc: linearize arriving NAME_DISTR and LINK_PROTO buffers")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20221203094635.29024-1-yuehaibing@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: hisilicon: Fix potential use-after-free in hix5hd2_rx()

The skb is delivered to napi_gro_receive() which may free it, after
calling this, dereferencing skb may trigger use-after-free.

Fixes: 57c5bc9ad7d7 ("net: hisilicon: add hix5hd2 mac driver")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Link: https://lore.kernel.org/r/20221203094240.1240211-2-liujian56@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: mdio: fix unbalanced fwnode reference count in mdio_device_release()

There is warning report about of_node refcount leak
while probing mdio device:

OF: ERROR: memory leak, expected refcount 1 instead of 2,
of_node_get()/of_node_put() unbalanced - destroy cset entry:
attach overlay node /spi/soc@0/mdio@710700c0/ethernet@4

In of_mdiobus_register_device(), we increase fwnode refcount
by fwnode_handle_get() before associating the of_node with
mdio device, but it has never been decreased in normal path.
Since that, in mdio_device_release(), it needs to call
fwnode_handle_put() in addition instead of calling kfree()
directly.

After above, just calling mdio_device_free() in the error handle
path of of_mdiobus_register_device() is enough to keep the
refcount balanced.

Fixes: a9049e0c513c ("mdio: Add support for mdio drivers.")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20221203073441.3885317-1-zengheng4@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: hisilicon: Fix potential use-after-free in hisi_femac_rx()

The skb is delivered to napi_gro_receive() which may free it, after
calling this, dereferencing skb may trigger use-after-free.

Fixes: 542ae60af24f ("net: hisilicon: Add Fast Ethernet MAC driver")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Link: https://lore.kernel.org/r/20221203094240.1240211-1-liujian56@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: thunderx: Fix missing destroy_workqueue of nicvf_rx_mode_wq

The nicvf_probe() won't destroy workqueue when register_netdev()
failed. Add destroy_workqueue err handle case to fix this issue.

Fixes: 2ecbe4f4a027 ("net: thunderx: replace global nicvf_rx_mode_wq work queue for all VFs to private for each of them.")
Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20221203094125.602812-1-liuyongqiang13@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

ravb: Fix potential use-after-free in ravb_rx_gbeth()

The skb is delivered to napi_gro_receive() which may free it, after calling this,
dereferencing skb may trigger use-after-free.

Fixes: 1c59eb678cbd ("ravb: Fillup ravb_rx_gbeth() stub")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20221203092941.10880-1-yuehaibing@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: microchip: sparx5: Fix missing destroy_workqueue of mact_queue

The mchp_sparx5_probe() won't destroy workqueue created by
create_singlethread_workqueue() in sparx5_start() when later
inits failed. Add destroy_workqueue in the cleanup_ports case,
also add it in mchp_sparx5_remove()

Fixes: b37a1bae742f ("net: sparx5: add mactable support")
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Link: https://lore.kernel.org/r/20221203070259.19560-1-linqiheng@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

ip_gre: do not report erspan version on GRE interface

Although the type I ERSPAN is based on the barebones IP + GRE
encapsulation and no extra ERSPAN header. Report erspan version on GRE
interface looks unreasonable. Fix this by separating the erspan and gre
fill info.

IPv6 GRE does not have this info as IPv6 only supports erspan version
1 and 2.

Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: f989d546a2d5 ("erspan: Add type I version 0 support.")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: William Tu <u9012063@gmail.com>
Link: https://lore.kernel.org/r/20221203032858.3130339-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: wwan: iosm: fix memory leak in ipc_mux_init()

When failed to alloc ipc_mux->ul_adb.pp_qlt in ipc_mux_init(), ipc_mux
is not released.

Fixes: 1f52d7b62285 ("net: wwan: iosm: Enable M.2 7360 WWAN card support")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: M Chetan Kumar <m.chetan.kumar@intel.com>
Link: https://lore.kernel.org/r/20221203020903.383235-1-shaozhengchao@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: mana: Fix race on per-CQ variable napi work_done

After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be
cleared, and another CPU can start napi thread and access per-CQ variable,
cq->work_done. If the other thread (for example, from busy_poll) sets
it to a value >= budget, this thread will continue to run when it should
stop, and cause memory corruption and panic.

To fix this issue, save the per-CQ work_done variable in a local variable
before napi_complete_done(), so it won't be corrupted by a possible
concurrent thread after napi_complete_done().

Also, add a flag bit to advertise to the NIC firmware: the NAPI work_done
variable race is fixed, so the driver is able to reliably support features
like busy_poll.

Cc: stable@vger.kernel.org
Fixes: e1b5683ff62e ("net: mana: Move NAPI from EQ to CQ")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1670010190-28595-1-git-send-email-haiyangz@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: stmmac: fix "snps,axi-config" node property parsing

In dt-binding snps,dwmac.yaml, some properties under "snps,axi-config"
node are named without "axi_" prefix, but the driver expects the
prefix. Since the dt-binding has been there for a long time, we'd
better make driver match the binding for compatibility.

Fixes: afea03656add ("stmmac: rework DMA bus setting and introduce new platform AXI structure")
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20221202161739.2203-1-jszhang@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

gpio/rockchip: fix refcount leak in rockchip_gpiolib_register()

The node returned by of_get_parent() with refcount incremented,
of_node_put() needs be called when finish using it. So add it in the
end of of_pinctrl_get().

Fixes: 936ee2675eee ("gpio/rockchip: add driver for rockchip gpio")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

NFC: nci: Bounds check struct nfc_target arrays

While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported:

  memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18)

This appears to be a legitimate lack of bounds checking in
nci_add_new_protocol(). Add the missing checks.

Reported-by: syzbot+210e196cef4711b65139@syzkaller.appspotmail.com
Link: https://lore.kernel.org/lkml/0000000000001c590f05ee7b3ff4@google.com
Fixes: 019c4fbaa790 ("NFC: Add NCI multiple targets support")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221202214410.never.693-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

proc: proc_skip_spaces() shouldn't think it is working on C strings

proc_skip_spaces() seems to think it is working on C strings, and ends
up being just a wrapper around skip_spaces() with a really odd calling
convention.

Instead of basing it on skip_spaces(), it should have looked more like
proc_skip_char(), which really is the exact same function (except it
skips a particular character, rather than whitespace).  So use that as
inspiration, odd coding and all.

Now the calling convention actually makes sense and works for the
intended purpose.

Reported-and-tested-by: Kyle Zeng <zengyhkyle@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

proc: avoid integer type confusion in get_proc_long

proc_get_long() is passed a size_t, but then assigns it to an 'int'
variable for the length.  Let's not do that, even if our IO paths are
limited to MAX_RW_COUNT (exactly because of these kinds of type errors).

So do the proper test in the rigth type.

Reported-by: Kyle Zeng <zengyhkyle@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ipc/sem: Fix dangling sem_array access in semtimedop race

When __do_semtimedop() goes to sleep because it has to wait for a
semaphore value becoming zero or becoming bigger than some threshold, it
links the on-stack sem_queue to the sem_array, then goes to sleep
without holding a reference on the sem_array.

When __do_semtimedop() comes back out of sleep, one of two things must
happen:

 a) We prove that the on-stack sem_queue has been disconnected from the
    (possibly freed) sem_array, making it safe to return from the stack
    frame that the sem_queue exists in.

 b) We stabilize our reference to the sem_array, lock the sem_array, and
    detach the sem_queue from the sem_array ourselves.

sem_array has RCU lifetime, so for case (b), the reference can be
stabilized inside an RCU read-side critical section by locklessly
checking whether the sem_queue is still connected to the sem_array.

However, the current code does the lockless check on sem_queue before
starting an RCU read-side critical section, so the result of the
lockless check immediately becomes useless.

Fix it by doing rcu_read_lock() before the lockless check.  Now RCU
ensures that if we observe the object being on our queue, the object
can't be freed until rcu_read_unlock().

This bug is only hittable on kernel builds with full preemption support
(either CONFIG_PREEMPT or PREEMPT_DYNAMIC with preempt=full).

Fixes: 370b262c896e ("ipc/sem: avoid idr tree lookup for interrupted semop")
Cc: stable@vger.kernel.org
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i40e: Disallow ip4 and ip6 l4_4_bytes

Return -EOPNOTSUPP, when user requests l4_4_bytes for raw IP4 or
IP6 flow director filters. Flow director does not support filtering
on l4 bytes for PCTYPEs used by IP4 and IP6 filters.
Without this patch, user could create filters with l4_4_bytes fields,
which did not do any filtering on L4, but only on L3 fields.

Fixes: 36777d9fa24c ("i40e: check current configured input set when adding ntuple filters")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Kamil Maziarz <kamil.maziarz@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

i40e: Fix for VF MAC address 0

After spawning max VFs on a PF, some VFs were not getting resources and
their MAC addresses were 0. This was caused by PF sleeping before flushing
HW registers which caused VIRTCHNL_VFR_VFACTIVE to not be set in time for
VF.

Fix by adding a sleep after hw flush.

Fixes: e4b433f4a741 ("i40e: reset all VFs in parallel when rebuilding PF")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

i40e: Fix not setting default xps_cpus after reset

During tx rings configuration default XPS queue config is set and
__I40E_TX_XPS_INIT_DONE is locked. __I40E_TX_XPS_INIT_DONE state is
cleared and set again with default mapping only during queues build,
it means after first setup or reset with queues rebuild. (i.e.
ethtool -L <interface> combined <number>) After other resets (i.e.
ethtool -t <interface>) XPS_INIT_DONE is not cleared and those default
maps cannot be set again. It results in cleared xps_cpus mapping
until queues are not rebuild or mapping is not set by user.

Add clearing __I40E_TX_XPS_INIT_DONE state during reset to let
the driver set xps_cpus to defaults again after it was cleared.

Fixes: 6f853d4f8e93 ("i40e: allow XPS with QoS enabled")
Signed-off-by: Michal Jaron <michalx.jaron@intel.com>
Signed-off-by: Kamil Maziarz <kamil.maziarz@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

net: mvneta: Prevent out of bounds read in mvneta_config_rss()

The pp->indir[0] value comes from the user.  It is passed to:

if (cpu_online(pp->rxq_def))

inside the mvneta_percpu_elect() function.  It needs bounds checkeding
to ensure that it is not beyond the end of the cpu bitmap.

Fixes: cad5d847a093 ("net: mvneta: Fix the CPU choice in mvneta_percpu_elect")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

xen-netfront: Fix NULL sring after live migration

A NAPI is setup for each network sring to poll data to kernel
The sring with source host is destroyed before live migration and
new sring with target host is setup after live migration.
The NAPI for the old sring is not deleted until setup new sring
with target host after migration. With busy_poll/busy_read enabled,
the NAPI can be polled before got deleted when resume VM.

BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
IP: xennet_poll+0xae/0xd20
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
Call Trace:
 finish_task_switch+0x71/0x230
 timerqueue_del+0x1d/0x40
 hrtimer_try_to_cancel+0xb5/0x110
 xennet_alloc_rx_buffers+0x2a0/0x2a0
 napi_busy_loop+0xdb/0x270
 sock_poll+0x87/0x90
 do_sys_poll+0x26f/0x580
 tracing_map_insert+0x1d4/0x2f0
 event_hist_trigger+0x14a/0x260

 finish_task_switch+0x71/0x230
 __schedule+0x256/0x890
 recalc_sigpending+0x1b/0x50
 xen_sched_clock+0x15/0x20
 __rb_reserve_next+0x12d/0x140
 ring_buffer_lock_reserve+0x123/0x3d0
 event_triggers_call+0x87/0xb0
 trace_event_buffer_commit+0x1c4/0x210
 xen_clocksource_get_cycles+0x15/0x20
 ktime_get_ts64+0x51/0xf0
 SyS_ppoll+0x160/0x1a0
 SyS_ppoll+0x160/0x1a0
 do_syscall_64+0x73/0x130
 entry_SYSCALL_64_after_hwframe+0x41/0xa6
...
RIP: xennet_poll+0xae/0xd20 RSP: ffffb4f041933900
CR2: 0000000000000008
---[ end trace f8601785b354351c ]---

xen frontend should remove the NAPIs for the old srings before live
migration as the bond srings are destroyed

There is a tiny window between the srings are set to NULL and
the NAPIs are disabled, It is safe as the NAPI threads are still
frozen at that time

Signed-off-by: Lin Liu <lin.liu@citrix.com>
Fixes: 4ec2411980d0 ([NET]: Do not check netif_running() and carrier state in ->poll())
Signed-off-by: David S. Miller <davem@davemloft.net>

net: microchip: sparx5: correctly free skb in xmit

consume_skb on transmitted, kfree_skb on dropped, do not free on
TX_BUSY.

Previously the xmit function could return -EBUSY without freeing, which
supposedly is interpreted as a drop. And was using kfree on successfully
transmitted packets.

sparx5_fdma_xmit and sparx5_inject returns error code, where -EBUSY
indicates TX_BUSY and any other error code indicates dropped.

Fixes: f3cad2611a77 ("net: sparx5: add hostmode with phylink support")
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

octeontx2-pf: Fix potential memory leak in otx2_init_tc()

In otx2_init_tc(), if rhashtable_init() failed, it does not free
tc->tc_entries_bitmap which is allocated in otx2_tc_alloc_ent_bitmap().

Fixes: 2e2a8126ffac ("octeontx2-pf: Unify flow management variables")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: mdiobus: fix double put fwnode in the error path

If phy_device_register() or fwnode_mdiobus_phy_device_register()
fail, phy_device_free() is called, the device refcount is decreased
to 0, then fwnode_handle_put() will be called in phy_device_release(),
but in the error path, fwnode_handle_put() has already been called,
so set fwnode to NULL after fwnode_handle_put() in the error path to
avoid double put.

Fixes: cdde1560118f ("net: mdiobus: fix unbalanced node reference count")
Reported-by: Zeng Heng <zengheng4@huawei.com>
Tested-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Zeng Heng <zengheng4@huawei.com>
Tested-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: encx24j600: Fix invalid logic in reading of MISTAT register

A loop for reading MISTAT register continues while regmap_read() fails
and (mistat & BUSY), but if regmap_read() fails a value of mistat is
undefined.

The patch proposes to check for BUSY flag only when regmap_read()
succeed. Compile test only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d70e53262f5c ("net: Microchip encx24j600 driver")
Signed-off-by: Valentina Goncharenko <goncharenko.vp@ispras.ru>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: encx24j600: Add parentheses to fix precedence

In functions regmap_encx24j600_phy_reg_read() and
regmap_encx24j600_phy_reg_write() in the conditions of the waiting
cycles for filling the variable 'ret' it is necessary to add parentheses
to prevent wrong assignment due to logical operations precedence.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d70e53262f5c ("net: Microchip encx24j600 driver")
Signed-off-by: Valentina Goncharenko <goncharenko.vp@ispras.ru>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()

Kernel fault injection test reports null-ptr-deref as follows:

BUG: kernel NULL pointer dereference, address: 0000000000000008
RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114
Call Trace:
 <TASK>
 raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87
 call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944
 unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982
 unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879
 register_netdevice+0x9a8/0xb90 net/core/dev.c:10083
 ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659
 ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229
 mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316

ieee802154_if_add() allocates wpan_dev as netdev's private data, but not
init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage
the list when device register/unregister, and may lead to null-ptr-deref.

Use INIT_LIST_HEAD() on it to initialize it correctly.

Fixes: fcf39e6e88e9 ("ieee802154: add wpan_dev_list")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20221130091705.1831140-1-weiyongjun@huaweicloud.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>

nfp: correct desc type when header dma len is 4096

When there's only one buffer to dma and its length is 4096, then
only one data descriptor is needed to carry it according to current
descriptor definition. So the descriptor type should be `simple`
instead of `gather`, the latter requires more than one descriptor,
otherwise it'll be dropped by application firmware.

Fixes: c10d12e3dce8 ("nfp: add support for NFDK data path")
Fixes: d9d950490a0a ("nfp: nfdk: implement xdp tx path for NFDK")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Reviewed-by: Richard Donkin <richard.donkin@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20221202134646.311108-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Linux 6.1-rc8

Revert "mm: align larger anonymous mappings on THP boundaries"

This reverts commit f35b5d7d676e59e401690b678cd3cfec5e785c23.

It has been reported to cause huge performance regressions on some loads
(will-it-scale.per_process_ops, but also building the kernel with
clang).

The commit did speed up gcc builds by a small amount, so it's not an
unambiguous regression, but until the big regressions are understood,
let's revert it.

Reported-by: kernel test robot <yujie.liu@intel.com>
Link: https://lore.kernel.org/r/202210181535.7144dd15-yujie.liu@intel.com
Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/lkml/Y1DNQaoPWxE%2BrGce@dev-arch.thelio-3990X/
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

char: tpm: Protect tpm_pm_suspend with locks

Currently tpm transactions are executed unconditionally in
tpm_pm_suspend() function, which may lead to races with other tpm
accessors in the system.

Specifically, the hw_random tpm driver makes use of tpm_get_random(),
and this function is called in a loop from a kthread, which means it's
not frozen alongside userspace, and so can race with the work done
during system suspend:

  tpm tpm0: tpm_transmit: tpm_recv: error -52
  tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics
  CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014
  Call Trace:
   tpm_tis_status.cold+0x19/0x20
   tpm_transmit+0x13b/0x390
   tpm_transmit_cmd+0x20/0x80
   tpm1_pm_suspend+0xa6/0x110
   tpm_pm_suspend+0x53/0x80
   __pnp_bus_suspend+0x35/0xe0
   __device_suspend+0x10f/0x350

Fix this by calling tpm_try_get_ops(), which itself is a wrapper around
tpm_chip_start(), but takes the appropriate mutex.

Signed-off-by: Jan Dabros <jsd@semihalf.com>
Reported-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/all/c5ba47ef-393f-1fba-30bd-1230d1b4b592@suse.cz/
Cc: stable@vger.kernel.org
Fixes: e891db1a18bf ("tpm: turn on TPM on suspend for TPM 1.x")
[Jason: reworked commit message, added metadata]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'perf_urgent_for_v6.1_rc8' of git://git./linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Fix a use-after-free case where the perf pending task callback would
   see an already freed event

* tag 'perf_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix perf_pending_task() UaF

Merge tag 'timers_urgent_for_v6.1_rc8' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Revert a fix to RISC-V timers supposed to address an uncertainty
   whether clock events are received during S3 or not which locks up
   other RISC-V platforms. The issue will be fixed differently later.

* tag 'timers_urgent_for_v6.1_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "clocksource/drivers/riscv: Events are stopped during CPU suspend"

Merge tag 'powerpc-6.1-6' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix oops in 32-bit BPF tail call tests

 - Add missing declaration for machine_check_early_boot()

Thanks to Christophe Leroy and Naveen N. Rao.

* tag 'powerpc-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Add missing declaration for machine_check_early_boot()
  powerpc/bpf/32: Fix Oops on tail call tests

Merge tag 'input-for-v6.1-rc7' of git://git./linux/kernel/git/dtor/input

Pull input fix from Dmitry Torokhov:

 - a fix for Raydium touchscreen driver to stop leaking memory when
   sending commands to the chip

* tag 'input-for-v6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send()

Merge tag 'i2c-for-6.1-rc8' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "A power state fix in the core for ACPI devices, a regression fix
  regarding bus recovery for the cadence driver, a DMA handling fix for
  the imx driver, and two error path fixes (npcm7xx and qcom-geni)"

* tag 'i2c-for-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set
  i2c: qcom-geni: fix error return code in geni_i2c_gpi_xfer
  i2c: cadence: Fix regression with bus recovery
  i2c: Restore initial power state if probe fails
  i2c: npcm7xx: Fix error handling in npcm_i2c_init()

Merge tag 'dax-fixes-6.1-rc8' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull dax fixes from Dan Williams:
 "A few bug fixes around the handling of "Soft Reserved" memory and
  memory tiering information.

  Linux is starting to enounter more real world systems that deploy an
  ACPI HMAT to describe different performance classes of memory, as well
  the "special purpose" (Linux "Soft Reserved") designation from EFI.

  These fixes result from that testing.

  It has all appeared in -next for a while with no known issues.

   - Fix duplicate overlapping device-dax instances for HMAT described
     "Soft Reserved" Memory

   - Fix missing node targets in the sysfs representation of memory
     tiers

   - Remove a confusing variable initialization"

* tag 'dax-fixes-6.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  device-dax: Fix duplicate 'hmem' device registration
  ACPI: HMAT: Fix initiator registration for single-initiator systems
  ACPI: HMAT: remove unnecessary variable initialization

selftests: net: Use "grep -E" instead of "egrep"

The latest version of grep claims the egrep is now obsolete so the build
now contains warnings that look like:
egrep: warning: egrep is obsolescent; using grep -E
fix this using "grep -E" instead.

  sed -i "s/egrep/grep -E/g" `grep egrep -rwl tools/testing/selftests/net`

Here are the steps to install the latest grep:

  wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
  tar xf grep-3.8.tar.gz
  cd grep-3.8 && ./configure && make
  sudo make install
  export PATH=/usr/local/bin:$PATH

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1669864248-829-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

selftests: rtnetlink: correct xfrm policy rule in kci_test_ipsec_offload

When testing in kci_test_ipsec_offload, srcip is configured as $dstip,
it should add xfrm policy rule in instead of out.
The test result of this patch is as follows:
PASS: ipsec_offload

Fixes: 2766a11161cc ("selftests: rtnetlink: add ipsec offload API test")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20221201082246.14131-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

selftests/tls: Fix tls selftests dependency to correct algorithm

Commit d2825fa9365d ("crypto: sm3,sm4 - move into crypto directory") moves
SM3 and SM4 algorithm implementations from stand-alone library to crypto
API. The corresponding configuration options for the API version (generic)
are CONFIG_CRYPTO_SM3_GENERIC and CONFIG_CRYPTO_SM4_GENERIC, respectively.

Replace option selected in selftests configuration from the library version
to the API version.

Fixes: d2825fa9365d ("crypto: sm3,sm4 - move into crypto directory")
Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20221201131852.38501-1-tianjia.zhang@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: dsa: sja1105: Check return value

Return NULL if we got unexpected value from skb_trim_rcsum() in
sja1110_rcv_inband_control_extension()

Fixes: 4913b8ebf8a9 ("net: dsa: add support for the SJA1110 native tagging protocol")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221201140032.26746-3-artem.chernyshev@red-soft.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: dsa: hellcreek: Check return value

Return NULL if we got unexpected value from skb_trim_rcsum()
in hellcreek_rcv()

Fixes: 01ef09caad66 ("net: dsa: Add tag handling for Hirschmann Hellcreek switches")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Link: https://lore.kernel.org/r/20221201140032.26746-2-artem.chernyshev@red-soft.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: dsa: ksz: Check return value

Return NULL if we got unexpected value from skb_trim_rcsum()
in ksz_common_rcv()

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: bafe9ba7d908 ("net: dsa: ksz: Factor out common tag code")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221201140032.26746-1-artem.chernyshev@red-soft.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge tag 'for-net-2022-12-02' of git://git./linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix regressions with CSR controller clones
 - Fix support for Read Local Supported Codecs V2
 - Fix overflow on L2CAP code
 - Fix missing hci_dev_put on ISO and L2CAP code

* tag 'for-net-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: Fix crash when replugging CSR fake controllers
  Bluetooth: Fix not cleanup led when bt_init fails
  Bluetooth: Fix support for Read Local Supported Codecs V2
  Bluetooth: Remove codec id field in vendor codec definition
  Bluetooth: L2CAP: Fix u8 overflow
  Bluetooth: silence a dmesg error message in hci_request.c
  Bluetooth: hci_conn: add missing hci_dev_put() in iso_listen_bis()
  Bluetooth: 6LoWPAN: add missing hci_dev_put() in get_l2cap_conn()
  Bluetooth: btusb: Add debug message for CSR controllers
  Bluetooth: btusb: Fix CSR clones again by re-adding ERR_DATA_REPORTING quirk
====================

Link: https://lore.kernel.org/r/20221202213726.2801581-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "Just a small NVMe merge for this week, fixing protection of the name
  space list, and a missing clear of a reserved field when unused"

* tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux:
  nvme: fix SRCU protection of nvme_ns_head list
  nvme-pci: clear the prp2 field when not used

Merge tag 'pinctrl-v6.1-5' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Three driver fixes. The Intel fix looks like the most important.

   - Fix a potential divide by zero in pinctrl-singe (OMAP and
     HiSilicon)

   - Disable IRQs on startup in the Mediatek driver. This is a classic,
     we should be looking out for this more.

   - Save and restore pins in 'direct IRQ' mode in the Intel driver,
     this works around firmware bugs"

* tag 'pinctrl-v6.1-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: intel: Save and restore pins in "direct IRQ" mode
  pinctrl: meditatek: Startup with the IRQs disabled
  pinctrl: single: Fix potential division by zero