Jiri Slaby [Thu, 10 Jun 2021 09:02:46 +0000 (11:02 +0200)]
cypress_m8: switch data_bits to real character bits
Make data_bits what it really is. Assign proper bit counts to data_bits
instead of magic 0..3. There are two reasons:
1) it's clear what we store there, and
2) it will make the transition to tty_tty_get_char_size() in the next
patch easier.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210610090247.2593-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiri Slaby [Thu, 10 Jun 2021 09:02:45 +0000 (11:02 +0200)]
mxs-auart: redefine AUART_LINECTRL_WLEN to accept bits count
It's a bit illogical to take magic constants in AUART_LINECTRL_WLEN.
Like in auart_console_get_options(), 2 means 7 bits. Switch
AUART_LINECTRL_WLEN to accept bit length, i.e. let it subtract 5 from
the parameter before doing the logic.
This will ease conversion from CSIZE to bits in mxs_auart_settermios()
in the next patch.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210610090247.2593-2-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiri Slaby [Thu, 10 Jun 2021 09:02:44 +0000 (11:02 +0200)]
tty: make tty_get_{char,frame}_size available
Many tty drivers contain code to compute bits count depending on termios
cflags. So extract this code from serial core to two separate tty helper
functions:
* tty_get_char_size -- only size of a character, without flags,
* tty_get_frame_size -- complete size of a frame including flags.
In the next patch, calls to these new functions replace many copies of
this code.
Note that we accept only cflag as a parameter. That's because some
callers like pch_uart_startup or sunsab_console_setup don't have at hand
termios which we could pass around.
Cc: Joe Perches <joe@perches.com>
Cc: Johan Hovold <johan@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210610090247.2593-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiri Slaby [Thu, 10 Jun 2021 09:03:07 +0000 (11:03 +0200)]
ipwireless: remove unused ipw_tty::closing
It's only set, but never read because commit
01261cb94318 ("tty:
ipwireless: Remove tty->closing abort from ipw_open()") removed last use
of tty::closing.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: David Sterba <dsterba@suse.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210610090307.2689-1-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Erwan Le Ray [Thu, 10 Jun 2021 10:00:20 +0000 (12:00 +0200)]
serial: stm32: defer probe for dma devices
Defer device probe operation when a DMA channel request probe deferral.
With this change both DMA channels are acquired before DMA channels are
configured. Once no probe deferral is expected, DMAs are
configured and any failure in their configuration will make the driver
to fallback to interrupt mode as prior this change.
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@foss.st.com>
Link: https://lore.kernel.org/r/20210610100020.2318-1-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mikko Perttunen [Wed, 9 Jun 2021 15:56:55 +0000 (18:56 +0300)]
serial: tegra-tcu: Reorder channel initialization
Request the RX mailbox only after initializing the UART data
structures. Otherwise it can rarely happen that the receive
callback is called before the UART is ready.
Fixes:
2d908b38d409 ("serial: Add Tegra Combined UART driver")
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Link: https://lore.kernel.org/r/20210609155655.3567545-1-mperttunen@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yoshihiro Shimoda [Thu, 10 Jun 2021 11:08:06 +0000 (20:08 +0900)]
serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
Stop dmaengine transfer in sci_stop_tx(). Otherwise, the following
message is possible output when system enters suspend and while
transferring data, because clearing TIE bit in SCSCR is not able to
stop any dmaengine transfer.
sh-sci
e6550000.serial: ttySC1: Unable to drain transmitter
Note that this driver has already used some #ifdef in the .c file
so that this patch also uses #ifdef to fix the issue. Otherwise,
build errors happens if the CONFIG_SERIAL_SH_SCI_DMA is disabled.
Fixes:
73a19e4c0301 ("serial: sh-sci: Add DMA support.")
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210610110806.277932-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 14 Jun 2021 07:14:43 +0000 (09:14 +0200)]
Merge tag 'v5.13-rc6' into tty-next
We want the tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sun, 13 Jun 2021 21:43:10 +0000 (14:43 -0700)]
Linux 5.13-rc6
Linus Torvalds [Sun, 13 Jun 2021 19:41:47 +0000 (12:41 -0700)]
Merge tag 'perf-tools-fixes-for-v5.13-2021-06-13' of git://git./linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Correct buffer copying when peeking events
- Sync cpufeatures/disabled-features.h header with the kernel sources
* tag 'perf-tools-fixes-for-v5.13-2021-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
tools headers cpufeatures: Sync with the kernel sources
perf session: Correct buffer copying when peeking events
Linus Torvalds [Sun, 13 Jun 2021 19:32:59 +0000 (12:32 -0700)]
Merge tag 'nfs-for-5.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- Fix use-after-free in nfs4_init_client()
Bugfixes:
- Fix deadlock between nfs4_evict_inode() and nfs4_opendata_get_inode()
- Fix second deadlock in nfs4_evict_inode()
- nfs4_proc_set_acl should not change the value of NFS_CAP_UIDGID_NOMAP
- Fix setting of the NFS_CAP_SECURITY_LABEL capability"
* tag 'nfs-for-5.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4: Fix second deadlock in nfs4_evict_inode()
NFSv4: Fix deadlock between nfs4_evict_inode() and nfs4_opendata_get_inode()
NFS: FMODE_READ and friends are C macros, not enum types
NFS: Fix a potential NULL dereference in nfs_get_client()
NFS: Fix use-after-free in nfs4_init_client()
NFS: Ensure the NFS_CAP_SECURITY_LABEL capability is set when appropriate
NFSv4: nfs4_proc_set_acl needs to restore NFS_CAP_UIDGID_NOMAP on error.
Linus Torvalds [Sun, 13 Jun 2021 19:25:33 +0000 (12:25 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four reasonably small fixes to the core for scsi host allocation
failure paths.
The root problem is that we're not freeing the memory allocated by
dev_set_name(), which involves a rejig of may of the free on error
paths to do put_device() instead of kfree which, in turn, has several
other knock on ramifications and inspection turned up a few other
lurking bugs"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: core: Only put parent device if host state differs from SHOST_CREATED
scsi: core: Put .shost_dev in failure path if host state changes to RUNNING
scsi: core: Fix failure handling of scsi_add_host_with_dma()
scsi: core: Fix error handling of scsi_host_alloc()
Linus Torvalds [Sat, 12 Jun 2021 20:57:49 +0000 (13:57 -0700)]
Merge tag 'riscv-for-linus-5.13-rc6' of git://git./linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A pair of XIP fixes: one to fix alternatives, and one to turn off the
rest of the features that require code modification
- A fix to a type that was causing some alternatives to break
- A build fix for BUILTIN_DTB
* tag 'riscv-for-linus-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix BUILTIN_DTB for sifive and microchip soc
riscv: alternative: fix typo in macro name
riscv: code patching only works on !XIP_KERNEL
riscv: xip: support runtime trap patching
Feng Tang [Fri, 11 Jun 2021 01:54:42 +0000 (09:54 +0800)]
mm: relocate 'write_protect_seq' in struct mm_struct
0day robot reported a 9.2% regression for will-it-scale mmap1 test
case[1], caused by commit
57efa1fe5957 ("mm/gup: prevent gup_fast from
racing with COW during fork").
Further debug shows the regression is due to that commit changes the
offset of hot fields 'mmap_lock' inside structure 'mm_struct', thus some
cache alignment changes.
From the perf data, the contention for 'mmap_lock' is very severe and
takes around 95% cpu cycles, and it is a rw_semaphore
struct rw_semaphore {
atomic_long_t count; /* 8 bytes */
atomic_long_t owner; /* 8 bytes */
struct optimistic_spin_queue osq; /* spinner MCS lock */
...
Before commit
57efa1fe5957 adds the 'write_protect_seq', it happens to
have a very optimal cache alignment layout, as Linus explained:
"and before the addition of the 'write_protect_seq' field, the
mmap_sem was at offset 120 in 'struct mm_struct'.
Which meant that count and owner were in two different cachelines,
and then when you have contention and spend time in
rwsem_down_write_slowpath(), this is probably *exactly* the kind
of layout you want.
Because first the rwsem_write_trylock() will do a cmpxchg on the
first cacheline (for the optimistic fast-path), and then in the
case of contention, rwsem_down_write_slowpath() will just access
the second cacheline.
Which is probably just optimal for a load that spends a lot of
time contended - new waiters touch that first cacheline, and then
they queue themselves up on the second cacheline."
After the commit, the rw_semaphore is at offset 128, which means the
'count' and 'owner' fields are now in the same cacheline, and causes
more cache bouncing.
Currently there are 3 "#ifdef CONFIG_XXX" before 'mmap_lock' which will
affect its offset:
CONFIG_MMU
CONFIG_MEMBARRIER
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES
The layout above is on 64 bits system with 0day's default kernel config
(similar to RHEL-8.3's config), in which all these 3 options are 'y'.
And the layout can vary with different kernel configs.
Relayouting a structure is usually a double-edged sword, as sometimes it
can helps one case, but hurt other cases. For this case, one solution
is, as the newly added 'write_protect_seq' is a 4 bytes long seqcount_t
(when CONFIG_DEBUG_LOCK_ALLOC=n), placing it into an existing 4 bytes
hole in 'mm_struct' will not change other fields' alignment, while
restoring the regression.
Link: https://lore.kernel.org/lkml/20210525031636.GB7744@xsang-OptiPlex-9020/
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 12 Jun 2021 19:34:49 +0000 (12:34 -0700)]
Merge tag 'usb-5.13-rc6' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of tiny USB fixes for 5.13-rc6.
There are more than I would normally like, but there's been a bunch of
people banging on the gadget and dwc3 and typec code recently for I
think an Android release, which has resulted in a number of small
fixes. It's nice to see companies send fixes upstream for this type of
work, a notable change from years ago.
Anyway, fixes in here are:
- usb-serial device id updates
- usb-serial cp210x driver fixes for broken firmware versions
- typec fixes for crazy charging devices and other reported problems
- dwc3 fixes for reported problems found
- gadget fixes for reported problems
- tiny xhci fixes
- other small fixes for reported issues.
- revert of a problem fix found by linux-next testing
All of these have passed 0-day and linux-next testing with no reported
problems (the revert for the found linux-next build problem included)"
* tag 'usb-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (44 commits)
Revert "usb: gadget: fsl: Re-enable driver for ARM SoCs"
usb: typec: mux: Fix copy-paste mistake in typec_mux_match
usb: typec: ucsi: Clear PPM capability data in ucsi_init() error path
usb: gadget: fsl: Re-enable driver for ARM SoCs
usb: typec: wcove: Use LE to CPU conversion when accessing msg->header
USB: serial: cp210x: fix CP2102N-A01 modem control
USB: serial: cp210x: fix alternate function for CP2102N QFN20
usb: misc: brcmstb-usb-pinmap: check return value after calling platform_get_resource()
usb: dwc3: ep0: fix NULL pointer exception
usb: gadget: eem: fix wrong eem header operation
usb: typec: intel_pmc_mux: Put ACPI device using acpi_dev_put()
usb: typec: intel_pmc_mux: Add missed error check for devm_ioremap_resource()
usb: typec: intel_pmc_mux: Put fwnode in error case during ->probe()
usb: typec: tcpm: Do not finish VDM AMS for retrying Responses
usb: fix various gadget panics on 10gbps cabling
usb: fix various gadgets null ptr deref on 10gbps cabling.
usb: pci-quirks: disable D3cold on xhci suspend for s2idle on AMD Renoir
usb: f_ncm: only first packet of aggregate needs to start timer
USB: f_ncm: ncm_bitrate (speed) is unsigned
MAINTAINERS: usb: add entry for isp1760
...
Linus Torvalds [Sat, 12 Jun 2021 19:27:05 +0000 (12:27 -0700)]
Merge tag 'tty-5.13-rc6' of git://git./linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"A single 8250_exar serial driver fix for a reported problem with a
change that happened in 5.13-rc1.
It has been in linux-next with no reported problems"
* tag 'tty-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250_exar: Avoid NULL pointer dereference at ->exit()
Linus Torvalds [Sat, 12 Jun 2021 19:23:54 +0000 (12:23 -0700)]
Merge tag 'staging-5.13-rc6' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Two tiny staging driver fixes:
- ralink-gdma driver authorship information fixed up
- rtl8723bs driver fix for reported regression
Both have been in linux-next for a while with no reported problems"
* tag 'staging-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: ralink-gdma: Remove incorrect author information
staging: rtl8723bs: Fix uninitialized variables
Linus Torvalds [Sat, 12 Jun 2021 19:18:49 +0000 (12:18 -0700)]
Merge tag 'driver-core-5.13-rc6' of git://git./linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"A single debugfs fix for 5.13-rc6, fixing a bug in
debugfs_read_file_str() that showed up in 5.13-rc1.
It has been in linux-next for a full week with no
reported problems"
* tag 'driver-core-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
debugfs: Fix debugfs_read_file_str()
Linus Torvalds [Sat, 12 Jun 2021 19:13:55 +0000 (12:13 -0700)]
Merge tag 'char-misc-5.13-rc6' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small misc driver fixes for 5.13-rc6 that fix some
reported problems:
- Tiny phy driver fixes for reported issues
- rtsx regression for when the device suspended
- mhi driver fix for a use-after-free
All of these have been in linux-next for a few days with no reported
issues"
* tag 'char-misc-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
misc: rtsx: separate aspm mode into MODE_REG and MODE_CFG
bus: mhi: pci-generic: Fix hibernation
bus: mhi: pci_generic: Fix possible use-after-free in mhi_pci_remove()
bus: mhi: pci_generic: T99W175: update channel name from AT to DUN
phy: Sparx5 Eth SerDes: check return value after calling platform_get_resource()
phy: ralink: phy-mt7621-pci: drop 'of_match_ptr' to fix -Wunused-const-variable
phy: ti: Fix an error code in wiz_probe()
phy: phy-mtk-tphy: Fix some resource leaks in mtk_phy_init()
phy: cadence: Sierra: Fix error return code in cdns_sierra_phy_probe()
phy: usb: Fix misuse of IS_ENABLED
Linus Torvalds [Sat, 12 Jun 2021 19:06:24 +0000 (12:06 -0700)]
Merge tag 'pinctrl-v5.13-2' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix some documentation warnings for Allwinner
- Fix duplicated GPIO groups on Qualcomm SDX55
- Fix a double enablement bug in the Ralink driver
- Fix the Qualcomm SC8180x Kconfig so the driver can be selected.
* tag 'pinctrl-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: qcom: Make it possible to select SC8180x TLMM
pinctrl: ralink: rt2880: avoid to error in calls is pin is already enabled
pinctrl: qcom: Fix duplication in gpio_groups
pinctrl: aspeed: Fix minor documentation error
Linus Torvalds [Sat, 12 Jun 2021 18:59:58 +0000 (11:59 -0700)]
Merge tag 'block-5.13-2021-06-12' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes that should go into 5.13:
- Fix a regression deadlock introduced in this release between open
and remove of a bdev (Christoph)
- Fix an async_xor md regression in this release (Xiao)
- Fix bcache oversized read issue (Coly)"
* tag 'block-5.13-2021-06-12' of git://git.kernel.dk/linux-block:
block: loop: fix deadlock between open and remove
async_xor: check src_offs is not NULL before updating it
bcache: avoid oversized read request in cache missing code path
bcache: remove bcache device self-defined readahead
Linus Torvalds [Sat, 12 Jun 2021 18:53:20 +0000 (11:53 -0700)]
Merge tag 'io_uring-5.13-2021-06-12' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Just an API change for the registration changes that went into this
release. Better to get it sorted out now than before it's too late"
* tag 'io_uring-5.13-2021-06-12' of git://git.kernel.dk/linux-block:
io_uring: add feature flag for rsrc tags
io_uring: change registration/upd/rsrc tagging ABI
Linus Torvalds [Sat, 12 Jun 2021 18:41:28 +0000 (11:41 -0700)]
Merge tag 'sched-urgent-2021-06-12' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixes:
- Fix performance regression caused by lack of intended batching of
RCU callbacks by over-eager NOHZ-full code.
- Fix cgroups related corruption of load_avg and load_sum metrics.
- Three fixes to fix blocked load, util_sum/runnable_sum and util_est
tracking bugs"
* tag 'sched-urgent-2021-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix util_est UTIL_AVG_UNCHANGED handling
sched/pelt: Ensure that *_sum is always synced with *_avg
tick/nohz: Only check for RCU deferred wakeup on user/guest entry when needed
sched/fair: Make sure to update tg contrib for blocked load
sched/fair: Keep load_avg and load_sum synced
Linus Torvalds [Sat, 12 Jun 2021 18:34:49 +0000 (11:34 -0700)]
Merge tag 'perf-urgent-2021-06-12' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Misc fixes:
- Fix the NMI watchdog on ancient Intel CPUs
- Remove a misguided, NMI-unsafe KASAN callback from the NMI-safe
irq_work path used by perf.
- Fix uncore events on Ice Lake servers.
- Someone booted maxcpus=1 on an SNB-EP, and the uncore driver
emitted warnings and was probably buggy. Fix it.
- KCSAN found a genuine data race in the core perf code. Somewhat
ironically the bug was introduced through a recent race fix. :-/
In our defense, the new race window was much more narrow. Fix it"
* tag 'perf-urgent-2021-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs
irq_work: Make irq_work_queue() NMI-safe again
perf/x86/intel/uncore: Fix M2M event umask for Ice Lake server
perf/x86/intel/uncore: Fix a kernel WARNING triggered by maxcpus=1
perf: Fix data race between pin_count increment/decrement
Linus Torvalds [Sat, 12 Jun 2021 18:10:28 +0000 (11:10 -0700)]
Merge tag 'objtool-urgent-2021-06-12' of git://git./linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"Two objtool fixes:
- fix a bug that corrupts the code by mistakenly rewriting
conditional jumps
- fix another bug generating an incorrect ELF symbol table
during retpoline rewriting"
* tag 'objtool-urgent-2021-06-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Only rewrite unconditional retpoline thunk calls
objtool: Fix .symtab_shndx handling for elf_create_undef_symbol()
Alexandre Ghiti [Fri, 4 Jun 2021 12:06:39 +0000 (14:06 +0200)]
riscv: Fix BUILTIN_DTB for sifive and microchip soc
Fix BUILTIN_DTB config which resulted in a dtb that was actually not
built into the Linux image: in the same manner as Canaan soc does,
create an object file from the dtb file that will get linked into the
Linux image.
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Linus Torvalds [Sat, 12 Jun 2021 00:05:03 +0000 (17:05 -0700)]
Merge tag 'trace-v5.13-rc5-2' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix the length check in the temp buffer filter
- Fix build failure in bootconfig tools for "fallthrough" macro
- Fix error return of bootconfig apply_xbc() routine
* tag 'trace-v5.13-rc5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Correct the length check which causes memory corruption
ftrace: Do not blindly read the ip address in ftrace_bug()
tools/bootconfig: Fix a build error accroding to undefined fallthrough
tools/bootconfig: Fix error return code in apply_xbc()
Linus Torvalds [Fri, 11 Jun 2021 23:29:53 +0000 (16:29 -0700)]
Merge tag 'clang-features-v5.13-rc6' of git://git./linux/kernel/git/kees/linux
Pull clang LTO fix from Kees Cook:
"Clang 13 fixed some IR behavior for LTO, but this broke work-arounds
used in the kernel.
Handle changes to needed LTO flags in Clang 13 (Tor Vic)"
* tag 'clang-features-v5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
x86, lto: Pass -stack-alignment only on LLD < 13.0.0
Linus Torvalds [Fri, 11 Jun 2021 23:27:18 +0000 (16:27 -0700)]
Merge tag 'gpio-fixes-for-v5.13-rc6' of git://git./linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
"Fix a shift-out-of-bounds error in gpio-wcd934x"
* tag 'gpio-fixes-for-v5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: wcd934x: Fix shift-out-of-bounds error
Linus Torvalds [Fri, 11 Jun 2021 19:33:38 +0000 (12:33 -0700)]
Merge tag 'drm-fixes-2021-06-11' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Another week of fixes, nothing too crazy, but a few all over the
place.
Two locking fixes in the core/ttm area, a couple of small driver fixes
(radeon, sun4i, mcde, vc4). Then msm and amdgpu have a set of fixes
each, mostly for smaller things, though the msm has a DSI fix for a
black screen.
I haven't seen any intel fixes this week so they may have a few that
may or may not wait for next week.
drm:
- auth locking fix
ttm:
- locking fix
amdgpu:
- Use kvzmalloc in amdgu_bo_create
- Use drm_dbg_kms for reporting failure to get a GEM FB
- Fix some register offsets for Sienna Cichlid
- Fix fall-through warning
radeon:
- memcpy_to/from_io fixes
msm:
- NULL ptr deref fix
- CP_PROTECT reg programming fix
- incorrect register shift fix
- DSI blank screen fix
sun4i:
- hdmi output probing fix
mcde:
- DSI pipeline calc fix
vc4:
- out of bounds fix"
* tag 'drm-fixes-2021-06-11' of git://anongit.freedesktop.org/drm/drm:
drm/msm/dsi: Stash away calculated vco frequency on recalc
drm: Lock pointer access in drm_master_release()
drm/mcde: Fix off by 10^3 in calculation
drm/msm/a6xx: avoid shadow NULL reference in failure path
drm/msm/a6xx: fix incorrectly set uavflagprd_inv field for A650
drm/msm/a6xx: update/fix CP_PROTECT initialization
radeon: use memcpy_to/fromio for UVD fw upload
drm/amd/pm: Fix fall-through warning for Clang
drm/amdgpu: Fix incorrect register offsets for Sienna Cichlid
drm/amdgpu: Use drm_dbg_kms for reporting failure to get a GEM FB
drm/amdgpu: switch kzalloc to kvzalloc in amdgpu_bo_create
drm/msm: Init mm_list before accessing it for use_vram path
drm: Fix use-after-free read in drm_getunique()
drm/vc4: fix vc4_atomic_commit_tail() logic
drm/ttm: fix deref of bo->ttm without holding the lock v2
drm/sun4i: dw-hdmi: Make HDMI PHY into a platform device
Linus Torvalds [Fri, 11 Jun 2021 18:02:56 +0000 (11:02 -0700)]
Merge tag 'devicetree-fixes-for-5.13-3' of git://git./linux/kernel/git/robh/linux
Pull devicetree fix from Rob Herring:
"A single fix for broken media/renesas,drif.yaml binding schema"
* tag 'devicetree-fixes-for-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
media: dt-bindings: media: renesas,drif: Fix fck definition
Jens Axboe [Fri, 11 Jun 2021 17:56:08 +0000 (11:56 -0600)]
Merge branch 'md-fixes' of https://git./linux/kernel/git/song/md into block-5.13
Pull MD related fix from Song.
* 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
async_xor: check src_offs is not NULL before updating it
Linus Torvalds [Fri, 11 Jun 2021 17:53:43 +0000 (10:53 -0700)]
Merge tag 'acpi-5.13-rc6' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert a problematic recent commit and fix a regression
introduced during the 5.12 development cycle.
Specifics:
- Revert recent commit that attempted to fix the FACS table reference
counting but introduced a problem with accessing the hardware
signature after hibernation (Zhang Rui).
- Fix regression in the _OSC handling that broke the loading of ACPI
tables on some systems (Mika Westerberg)"
* tag 'acpi-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: Pass the same capabilities to the _OSC regardless of the query flag
Revert "ACPI: sleep: Put the FACS table after using it"
Christoph Hellwig [Sat, 5 Jun 2021 14:09:50 +0000 (17:09 +0300)]
block: loop: fix deadlock between open and remove
Commit
c76f48eb5c08 ("block: take bd_mutex around delete_partitions in
del_gendisk") adds disk->part0->bd_mutex in del_gendisk(), this way
causes the following AB/BA deadlock between removing loop and opening
loop:
1) loop_control_ioctl(LOOP_CTL_REMOVE)
-> mutex_lock(&loop_ctl_mutex)
-> del_gendisk
-> mutex_lock(&disk->part0->bd_mutex)
2) blkdev_get_by_dev
-> mutex_lock(&disk->part0->bd_mutex)
-> lo_open
-> mutex_lock(&loop_ctl_mutex)
Add a new Lo_deleting state to remove the need for clearing
->private_data and thus holding loop_ctl_mutex in the ioctl
LOOP_CTL_REMOVE path.
Based on an analysis and earlier patch from
Ming Lei <ming.lei@redhat.com>.
Reported-by: Colin Ian King <colin.king@canonical.com>
Fixes:
c76f48eb5c08 ("block: take bd_mutex around delete_partitions in del_gendisk")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20210605140950.5800-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Linus Torvalds [Fri, 11 Jun 2021 17:47:10 +0000 (10:47 -0700)]
Merge tag 'sound-5.13-rc6' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A bit more commits than expected at this time, but likely it's the
last shot before the final.
Many of changes are device-specific fix-ups for various ASoC drivers,
while a few usual HD-audio quirks and a FireWire fix, as well as a
couple of ALSA / ASoC core fixes.
All look nice and small, and nothing to scare much"
* tag 'sound-5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: seq: Fix race of snd_seq_timer_open()
ALSA: hda/realtek: fix mute/micmute LEDs for HP ZBook Power G8
ALSA: hda/realtek: headphone and mic don't work on an Acer laptop
ASoC: qcom: lpass-cpu: Fix pop noise during audio capture begin
ALSA: firewire-lib: fix the context to call snd_pcm_stop_xrun()
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 840 Aero G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP EliteBook x360 1040 G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Elite Dragonfly G2
ASoC: rt5682: Fix the fast discharge for headset unplugging in soundwire mode
ASoC: tas2562: Fix TDM_CFG0_SAMPRATE values
ASoC: meson: gx-card: fix sound-dai dt schema
ASoC: AMD Renoir: Remove fix for DMI entry on Lenovo 2020 platforms
ASoC: AMD Renoir - add DMI entry for Lenovo 2020 AMD platforms
ASoC: SOF: reset enabled_cores state at suspend
ASoC: fsl-asoc-card: Set .owner attribute when registering card.
ASoC: topology: Fix spelling mistake "vesion" -> "version"
ASoC: rt5659: Fix the lost powers for the HDA header
ASoC: core: Fix Null-point-dereference in fmt_single_name()
Tor Vic [Thu, 10 Jun 2021 20:58:06 +0000 (20:58 +0000)]
x86, lto: Pass -stack-alignment only on LLD < 13.0.0
Since LLVM commit 3787ee4, the '-stack-alignment' flag has been dropped
[1], leading to the following error message when building a LTO kernel
with Clang-13 and LLD-13:
ld.lld: error: -plugin-opt=-: ld.lld: Unknown command line argument
'-stack-alignment=8'. Try 'ld.lld --help'
ld.lld: Did you mean '--stackrealign=8'?
It also appears that the '-code-model' flag is not necessary anymore
starting with LLVM-9 [2].
Drop '-code-model' and make '-stack-alignment' conditional on LLD < 13.0.0.
These flags were necessary because these flags were not encoded in the
IR properly, so the link would restart optimizations without them. Now
there are properly encoded in the IR, and these flags exposing
implementation details are no longer necessary.
[1] https://reviews.llvm.org/D103048
[2] https://reviews.llvm.org/D52322
Cc: stable@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1377
Signed-off-by: Tor Vic <torvic9@mailbox.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/f2c018ee-5999-741e-58d4-e482d5246067@mailbox.org
Linus Torvalds [Fri, 11 Jun 2021 17:07:50 +0000 (10:07 -0700)]
Merge tag 'hwmon-for-v5.13-rc6' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes for tps23861, scpi-hwmon, and corsair-psu drivers, plus a
bindings fix for TI ADS7828"
* tag 'hwmon-for-v5.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (tps23861) correct shunt LSB values
hwmon: (tps23861) set current shunt value
hwmon: (tps23861) define regmap max register
hwmon: (scpi-hwmon) shows the negative temperature properly
hwmon: (corsair-psu) fix suspend behavior
dt-bindings: hwmon: Fix typo in TI ADS7828 bindings
Linus Torvalds [Fri, 11 Jun 2021 17:02:30 +0000 (10:02 -0700)]
Merge tag 'mmc-v5.13-rc3' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of MMC fixes to the Renesas SDHI driver:
- Fix HS400 on R-Car M3-W+
- Abort tuning when timeout detected"
* tag 'mmc-v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: renesas_sdhi: Fix HS400 on R-Car M3-W+
mmc: renesas_sdhi: abort tuning when timeout detected
Rafael J. Wysocki [Fri, 11 Jun 2021 15:57:24 +0000 (17:57 +0200)]
Merge branch 'acpi-bus'
* acpi-bus:
ACPI: Pass the same capabilities to the _OSC regardless of the query flag
Arnaldo Carvalho de Melo [Tue, 8 Jun 2021 16:46:18 +0000 (13:46 -0300)]
tools headers cpufeatures: Sync with the kernel sources
To pick the changes in:
fb35d30fe5b06cc2 ("x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX]")
e7b6385b01d8e9fb ("x86/cpufeatures: Add Intel SGX hardware bits")
1478b99a76534b6c ("x86/cpufeatures: Mark ENQCMD as disabled when configured out")
That don't cause any change in the tools, just silences this perf build
warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Cc: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Sean Christopherson <seanjc@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Sat, 5 Jun 2021 05:29:57 +0000 (13:29 +0800)]
perf session: Correct buffer copying when peeking events
When peeking an event, it has a short path and a long path. The short
path uses the session pointer "one_mmap_addr" to directly fetch the
event; and the long path needs to read out the event header and the
following event data from file and fill into the buffer pointer passed
through the argument "buf".
The issue is in the long path that it copies the event header and event
data into the same destination address which pointer "buf", this means
the event header is overwritten. We are just lucky to run into the
short path in most cases, so we don't hit the issue in the long path.
This patch adds the offset "hdr_sz" to the pointer "buf" when copying
the event data, so that it can reserve the event header which can be
used properly by its caller.
Fixes:
5a52f33adf02 ("perf session: Add perf_session__peek_event()")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210605052957.1070720-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Greg Kroah-Hartman [Fri, 11 Jun 2021 10:32:49 +0000 (12:32 +0200)]
Merge tag 'usb-serial-5.13-rc6' of https://git./linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for 5.13-rc6
Here are two fixes for the cp210x driver. The first fixes a regression
with early revisions of the CP2102N which specifically broke some ESP32
development boards. The second makes sure that the pin configuration is
detected properly also for the CP2102N QFN20 package.
Both have been in linux-next over night and with no reported issues.
* tag 'usb-serial-5.13-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
USB: serial: cp210x: fix CP2102N-A01 modem control
USB: serial: cp210x: fix alternate function for CP2102N QFN20
Greg Kroah-Hartman [Fri, 11 Jun 2021 07:18:47 +0000 (09:18 +0200)]
Revert "usb: gadget: fsl: Re-enable driver for ARM SoCs"
This reverts commit
e0e8b6abe8c862229ba00cdd806e8598cdef00bb.
Turns out this breaks the build. We had numerous reports of problems
from linux-next and 0-day about this not working properly, so revert it
for now until it can be figured out properly.
The build errors are:
arm-linux-gnueabi-ld: fsl_udc_core.c:(.text+0x29d4): undefined reference to `fsl_udc_clk_finalize'
arm-linux-gnueabi-ld: fsl_udc_core.c:(.text+0x2ba8): undefined reference to `fsl_udc_clk_release'
fsl_udc_core.c:(.text+0x2848): undefined reference to `fsl_udc_clk_init'
fsl_udc_core.c:(.text+0xe88): undefined reference to `fsl_udc_clk_release'
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: kernel test robot <lkp@intel.com>
Fixes:
e0e8b6abe8c8 ("usb: gadget: fsl: Re-enable driver for ARM SoCs")
Cc: stable <stable@vger.kernel.org>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Leo Li <leoyang.li@nxp.com>
Cc: Peter Chen <peter.chen@nxp.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Zijlstra [Thu, 10 Jun 2021 07:04:29 +0000 (09:04 +0200)]
objtool: Only rewrite unconditional retpoline thunk calls
It turns out that the compilers generate conditional branches to the
retpoline thunks like:
5d5: 0f 85 00 00 00 00 jne 5db <cpuidle_reflect+0x22>
5d7: R_X86_64_PLT32 __x86_indirect_thunk_r11-0x4
while the rewrite can only handle JMP/CALL to the thunks. The result
is the alternative wrecking the code. Make sure to skip writing the
alternatives for conditional branches.
Fixes:
9bc0bb50727c ("objtool/x86: Rewrite retpoline thunk calls")
Reported-by: Lukasz Majczak <lma@semihalf.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Vitaly Wool [Mon, 31 May 2021 09:33:10 +0000 (12:33 +0300)]
riscv: alternative: fix typo in macro name
alternative-macros.h defines ALT_NEW_CONTENT in its assembly part
and ALT_NEW_CONSTENT in the C part. Most likely it is the latter
that is wrong.
Fixes:
6f4eea90465ad
(riscv: Introduce alternative mechanism to apply errata solution)
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Xiao Ni [Fri, 28 May 2021 06:16:38 +0000 (14:16 +0800)]
async_xor: check src_offs is not NULL before updating it
When PAGE_SIZE is greater than 4kB, multiple stripes may share the same
page. Thus, src_offs is added to async_xor_offs() with array of offsets.
However, async_xor() passes NULL src_offs to async_xor_offs(). In such
case, src_offs should not be updated. Add a check before the update.
Fixes:
ceaf2966ab08(async_xor: increase src_offs when dropping destination page)
Cc: stable@vger.kernel.org # v5.10+
Reported-by: Oleksandr Shchirskyi <oleksandr.shchirskyi@linux.intel.com>
Tested-by: Oleksandr Shchirskyi <oleksandr.shchirskyi@intel.com>
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Dave Airlie [Fri, 11 Jun 2021 01:17:09 +0000 (11:17 +1000)]
Merge tag 'amd-drm-fixes-5.13-2021-06-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.13-2021-06-09:
amdgpu:
- Use kvzmalloc in amdgu_bo_create
- Use drm_dbg_kms for reporting failure to get a GEM FB
- Fix some register offsets for Sienna Cichlid
- Fix fall-through warning
radeon:
- memcpy_to/from_io fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210610035631.3943-1-alexander.deucher@amd.com
Dave Airlie [Fri, 11 Jun 2021 00:59:49 +0000 (10:59 +1000)]
Merge tag 'drm-misc-fixes-2021-06-10' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
One fix for snu4i that prevents it from probing, two locking fixes for
ttm and drm_auth, one off-by-x1000 fix for mcde and a fix for vc4 to
prevent an out-of-bounds access.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210610171653.lqsoadxrhdk73cdy@gilmour
Dave Airlie [Fri, 11 Jun 2021 00:45:27 +0000 (10:45 +1000)]
Merge tag 'drm-msm-fixes-2021-06-10' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
- NULL ptr deref fix
- CP_PROTECT reg programming fix
- incorrect register shift fix
- DSI blank screen fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGvbcz0=QxGYnX9u7cD1SCvFSx20dzrZuOccjtRRBTJd5Q@mail.gmail.com
Jisheng Zhang [Mon, 10 May 2021 16:28:38 +0000 (00:28 +0800)]
riscv: code patching only works on !XIP_KERNEL
Some features which need code patching such as KPROBES, DYNAMIC_FTRACE
KGDB can only work on !XIP_KERNEL. Add dependencies for these features
that rely on code patching.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Vitaly Wool [Mon, 31 May 2021 08:53:42 +0000 (11:53 +0300)]
riscv: xip: support runtime trap patching
RISCV_ERRATA_ALTERNATIVE patches text at runtime which is currently
not possible when the kernel is executed from the flash in XIP mode.
Since runtime patching concerns only traps at the moment, let's just
have all the traps reside in RAM anyway if RISCV_ERRATA_ALTERNATIVE
is set. Thus, these functions will be patch-able even when the .text
section is in flash.
Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Pavel Begunkov [Thu, 10 Jun 2021 15:37:38 +0000 (16:37 +0100)]
io_uring: add feature flag for rsrc tags
Add IORING_FEAT_RSRC_TAGS indicating that io_uring supports a bunch of
new IORING_REGISTER operations, in particular
IORING_REGISTER_[FILES[,UPDATE]2,BUFFERS[2,UPDATE]] that support rsrc
tagging, and also indicating implemented dynamic fixed buffer updates.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9b995d4045b6c6b4ab7510ca124fd25ac2203af7.1623339162.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pavel Begunkov [Thu, 10 Jun 2021 15:37:37 +0000 (16:37 +0100)]
io_uring: change registration/upd/rsrc tagging ABI
There are ABI moments about recently added rsrc registration/update and
tagging that might become a nuisance in the future. First,
IORING_REGISTER_RSRC[_UPD] hide different types of resources under it,
so breaks fine control over them by restrictions. It works for now, but
once those are wanted under restrictions it would require a rework.
It was also inconvenient trying to fit a new resource not supporting
all the features (e.g. dynamic update) into the interface, so better
to return to IORING_REGISTER_* top level dispatching.
Second, register/update were considered to accept a type of resource,
however that's not a good idea because there might be several ways of
registration of a single resource type, e.g. we may want to add
non-contig buffers or anything more exquisite as dma mapped memory.
So, remove IORING_RSRC_[FILE,BUFFER] out of the ABI, and place them
internally for now to limit changes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9b554897a7c17ad6e3becc48dfed2f7af9f423d5.1623339162.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Eric W. Biederman [Thu, 10 Jun 2021 20:11:11 +0000 (15:11 -0500)]
coredump: Limit what can interrupt coredumps
Olivier Langlois has been struggling with coredumps being incompletely written in
processes using io_uring.
Olivier Langlois <olivier@trillion01.com> writes:
> io_uring is a big user of task_work and any event that io_uring made a
> task waiting for that occurs during the core dump generation will
> generate a TIF_NOTIFY_SIGNAL.
>
> Here are the detailed steps of the problem:
> 1. io_uring calls vfs_poll() to install a task to a file wait queue
> with io_async_wake() as the wakeup function cb from io_arm_poll_handler()
> 2. wakeup function ends up calling task_work_add() with TWA_SIGNAL
> 3. task_work_add() sets the TIF_NOTIFY_SIGNAL bit by calling
> set_notify_signal()
The coredump code deliberately supports being interrupted by SIGKILL,
and depends upon prepare_signal to filter out all other signals. Now
that signal_pending includes wake ups for TIF_NOTIFY_SIGNAL this hack
in dump_emitted by the coredump code no longer works.
Make the coredump code more robust by explicitly testing for all of
the wakeup conditions the coredump code supports. This prevents
new wakeup conditions from breaking the coredump code, as well
as fixing the current issue.
The filesystem code that the coredump code uses already limits
itself to only aborting on fatal_signal_pending. So it should
not develop surprising wake-up reasons either.
v2: Don't remove the now unnecessary code in prepare_signal.
Cc: stable@vger.kernel.org
Fixes:
12db8b690010 ("entry: Add support for TIF_NOTIFY_SIGNAL")
Reported-by: Olivier Langlois <olivier@trillion01.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 10 Jun 2021 19:01:22 +0000 (12:01 -0700)]
Merge branch 'for-5.13-fixes' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
"This is a high priority but low risk fix for a cgroup1 bug where
rename(2) can change a cgroup's name to something which can break
parsing of /proc/PID/cgroup"
* 'for-5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup1: don't allow '\n' in renaming
Bjorn Andersson [Thu, 10 Jun 2021 00:21:32 +0000 (17:21 -0700)]
usb: typec: mux: Fix copy-paste mistake in typec_mux_match
Fix the copy-paste mistake in the return path of typec_mux_match(),
where dev is considered a member of struct typec_switch rather than
struct typec_mux.
The two structs are identical in regards to having the struct device as
the first entry, so this provides no functional change.
Fixes:
3370db35193b ("usb: typec: Registering real device entries for the muxes")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210610002132.3088083-1-bjorn.andersson@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mayank Rana [Wed, 9 Jun 2021 07:35:35 +0000 (00:35 -0700)]
usb: typec: ucsi: Clear PPM capability data in ucsi_init() error path
If ucsi_init() fails for some reason (e.g. ucsi_register_port()
fails or general communication failure to the PPM), particularly at
any point after the GET_CAPABILITY command had been issued, this
results in unwinding the initialization and returning an error.
However the ucsi structure's ucsi_capability member retains its
current value, including likely a non-zero num_connectors.
And because ucsi_init() itself is done in a workqueue a UCSI
interface driver will be unaware that it failed and may think the
ucsi_register() call was completely successful. Later, if
ucsi_unregister() is called, due to this stale ucsi->cap value it
would try to access the items in the ucsi->connector array which
might not be in a proper state or not even allocated at all and
results in NULL or invalid pointer dereference.
Fix this by clearing the ucsi->cap value to 0 during the error
path of ucsi_init() in order to prevent a later ucsi_unregister()
from entering the connector cleanup loop.
Fixes:
c1b0bc2dabfa ("usb: typec: Add support for UCSI interface")
Cc: stable@vger.kernel.org
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Link: https://lore.kernel.org/r/20210609073535.5094-1-jackp@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Joel Stanley [Thu, 10 Jun 2021 03:49:57 +0000 (13:19 +0930)]
usb: gadget: fsl: Re-enable driver for ARM SoCs
The commit
a390bef7db1f ("usb: gadget: fsl_mxc_udc: Remove the driver")
dropped the ARCH_MXC dependency from USB_FSL_USB2, leaving it depending
solely on FSL_SOC.
FSL_SOC is powerpc only; it was briefly available on ARM in 2014 but was
removed by commit
cfd074ad8600 ("ARM: imx: temporarily remove
CONFIG_SOC_FSL from LS1021A"). Therefore the driver can no longer be
enabled on ARM platforms.
This appears to be a mistake as arm64's ARCH_LAYERSCAPE and arm32
SOC_LS1021A SoCs use this symbol. It's enabled in these defconfigs:
arch/arm/configs/imx_v6_v7_defconfig:CONFIG_USB_FSL_USB2=y
arch/arm/configs/multi_v7_defconfig:CONFIG_USB_FSL_USB2=y
arch/powerpc/configs/mgcoge_defconfig:CONFIG_USB_FSL_USB2=y
arch/powerpc/configs/mpc512x_defconfig:CONFIG_USB_FSL_USB2=y
To fix, expand the dependencies so USB_FSL_USB2 can be enabled on the
ARM platforms, and with COMPILE_TEST.
Fixes:
a390bef7db1f ("usb: gadget: fsl_mxc_udc: Remove the driver")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210610034957.93376-1-joel@jms.id.au
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Shevchenko [Wed, 9 Jun 2021 17:22:02 +0000 (20:22 +0300)]
usb: typec: wcove: Use LE to CPU conversion when accessing msg->header
As LKP noticed the Sparse is not happy about strict type handling:
.../typec/tcpm/wcove.c:380:50: sparse: expected unsigned short [usertype] header
.../typec/tcpm/wcove.c:380:50: sparse: got restricted __le16 const [usertype] header
Fix this by switching to use pd_header_cnt_le() instead of pd_header_cnt()
in the affected code.
Fixes:
ae8a2ca8a221 ("usb: typec: Group all TCPCI/TCPM code together")
Fixes:
3c4fb9f16921 ("usb: typec: wcove: start using tcpm for USB PD support")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210609172202.83377-1-andriy.shevchenko@linux.intel.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Thu, 10 Jun 2021 17:53:04 +0000 (10:53 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A mixture of small bug fixes and a small security issue:
- WARN_ON when IPoIB is automatically moved between namespaces
- Long standing bug where mlx5 would use the wrong page for the
doorbell recovery memory if fork is used
- Security fix for mlx4 that disables the timestamp feature
- Several crashers for mlx5
- Plug a recent mlx5 memory leak for the sig_mr"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/mlx5: Fix initializing CQ fragments buffer
RDMA/mlx5: Delete right entry from MR signature database
RDMA: Verify port when creating flow rule
RDMA/mlx5: Block FDB rules when not in switchdev mode
RDMA/mlx4: Do not map the core_clock page to user space unless enabled
RDMA/mlx5: Use different doorbell memory for different processes
RDMA/ipoib: Fix warning caused by destroying non-initial netns
Robert Marko [Wed, 9 Jun 2021 22:07:28 +0000 (00:07 +0200)]
hwmon: (tps23861) correct shunt LSB values
Current shunt LSB values got reversed during in the
original driver commit.
So, correct the current shunt LSB values according to
the datasheet.
This caused reading slightly skewed current values.
Fixes:
fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20210609220728.499879-3-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Robert Marko [Wed, 9 Jun 2021 22:07:27 +0000 (00:07 +0200)]
hwmon: (tps23861) set current shunt value
TPS23861 has a configuration bit for setting of the
current shunt value used on the board.
Its bit 0 of the General Mask 1 register.
According to the datasheet bit values are:
0 for 255 mOhm (Default)
1 for 250 mOhm
So, configure the bit before registering the hwmon
device according to the value passed in the DTS or
default one if none is passed.
This caused potentially reading slightly skewed values
due to max current value being 1.02A when 250mOhm shunt
is used instead of 1.0A when 255mOhm is used.
Fixes:
fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20210609220728.499879-2-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Robert Marko [Wed, 9 Jun 2021 22:07:26 +0000 (00:07 +0200)]
hwmon: (tps23861) define regmap max register
Define the max register address the device supports.
This allows reading the whole register space via
regmap debugfs, without it only register 0x0 is visible.
This was forgotten in the original driver commit.
Fixes:
fff7b8ab2255 ("hwmon: add Texas Instruments TPS23861 driver")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20210609220728.499879-1-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Takashi Iwai [Thu, 10 Jun 2021 15:20:59 +0000 (17:20 +0200)]
ALSA: seq: Fix race of snd_seq_timer_open()
The timer instance per queue is exclusive, and snd_seq_timer_open()
should have managed the concurrent accesses. It looks as if it's
checking the already existing timer instance at the beginning, but
it's not right, because there is no protection, hence any later
concurrent call of snd_seq_timer_open() may override the timer
instance easily. This may result in UAF, as the leftover timer
instance can keep running while the queue itself gets closed, as
spotted by syzkaller recently.
For avoiding the race, add a proper check at the assignment of
tmr->timeri again, and return -EBUSY if it's been already registered.
Reported-by: syzbot+ddc1260a83ed1cbf6fb5@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/000000000000dce34f05c42f110c@google.com
Link: https://lore.kernel.org/r/20210610152059.24633-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Johan Hovold [Wed, 9 Jun 2021 16:15:09 +0000 (18:15 +0200)]
USB: serial: cp210x: fix CP2102N-A01 modem control
CP2102N revision A01 (firmware version <= 1.0.4) has a buggy
flow-control implementation that uses the ulXonLimit instead of
ulFlowReplace field of the flow-control settings structure (erratum
CP2102N_E104).
A recent change that set the input software flow-control limits
incidentally broke RTS control for these devices when CRTSCTS is not set
as the new limits would always enable hardware flow control.
Fix this by explicitly disabling flow control for the buggy firmware
versions and only updating the input software flow-control limits when
IXOFF is requested. This makes sure that the terminal settings matches
the default zero ulXonLimit (ulFlowReplace) for these devices.
Link: https://lore.kernel.org/r/20210609161509.9459-1-johan@kernel.org
Reported-by: David Frey <dpfrey@gmail.com>
Reported-by: Alex Villacís Lasso <a_villacis@palosanto.com>
Tested-by: Alex Villacís Lasso <a_villacis@palosanto.com>
Fixes:
f61309d9c96a ("USB: serial: cp210x: set IXOFF thresholds")
Cc: stable@vger.kernel.org # 5.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Stephen Boyd [Tue, 8 Jun 2021 19:55:19 +0000 (12:55 -0700)]
drm/msm/dsi: Stash away calculated vco frequency on recalc
A problem was reported on CoachZ devices where the display wouldn't come
up, or it would be distorted. It turns out that the PLL code here wasn't
getting called once dsi_pll_10nm_vco_recalc_rate() started returning the
same exact frequency, down to the Hz, that the bootloader was setting
instead of 0 when the clk was registered with the clk framework.
After commit
001d8dc33875 ("drm/msm/dsi: remove temp data from global
pll structure") we use a hardcoded value for the parent clk frequency,
i.e. VCO_REF_CLK_RATE, and we also hardcode the value for FRAC_BITS,
instead of getting it from the config structure. This combination of
changes to the recalc function allows us to properly calculate the
frequency of the PLL regardless of whether or not the PLL has been
clk_prepare()d or clk_set_rate()d. That's a good improvement.
Unfortunately, this means that now we won't call down into the PLL clk
driver when we call clk_set_rate() because the frequency calculated in
the framework matches the frequency that is set in hardware. If the rate
is the same as what we want it should be OK to not call the set_rate PLL
op. The real problem is that the prepare op in this driver uses a
private struct member to stash away the vco frequency so that it can
call the set_rate op directly during prepare. Once the set_rate op is
never called because recalc_rate told us the rate is the same, we don't
set this private struct member before the prepare op runs, so we try to
call the set_rate function directly with a frequency of 0. This
effectively kills the PLL and configures it for a rate that won't work.
Calling set_rate from prepare is really quite bad and will confuse any
downstream clks about what the rate actually is of their parent. Fixing
that will be a rather large change though so we leave that to later.
For now, let's stash away the rate we calculate during recalc so that
the prepare op knows what frequency to set, instead of 0. This way
things keep working and the display can enable the PLL properly. In the
future, we should remove that code from the prepare op so that it
doesn't even try to call the set rate function.
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Abhinav Kumar <abhinavk@codeaurora.org>
Fixes:
001d8dc33875 ("drm/msm/dsi: remove temp data from global pll structure")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210608195519.125561-1-swboyd@chromium.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Alexander Kuznetsov [Wed, 9 Jun 2021 07:17:19 +0000 (10:17 +0300)]
cgroup1: don't allow '\n' in renaming
cgroup_mkdir() have restriction on newline usage in names:
$ mkdir $'/sys/fs/cgroup/cpu/test\ntest2'
mkdir: cannot create directory
'/sys/fs/cgroup/cpu/test\ntest2': Invalid argument
But in cgroup1_rename() such check is missed.
This allows us to make /proc/<pid>/cgroup unparsable:
$ mkdir /sys/fs/cgroup/cpu/test
$ mv /sys/fs/cgroup/cpu/test $'/sys/fs/cgroup/cpu/test\ntest2'
$ echo $$ > $'/sys/fs/cgroup/cpu/test\ntest2'
$ cat /proc/self/cgroup
11:pids:/
10:freezer:/
9:hugetlb:/
8:cpuset:/
7:blkio:/user.slice
6:memory:/user.slice
5:net_cls,net_prio:/
4:perf_event:/
3:devices:/user.slice
2:cpu,cpuacct:/test
test2
1:name=systemd:/
0::/
Signed-off-by: Alexander Kuznetsov <wwfq@yandex-team.ru>
Reported-by: Andrey Krasichkov <buglloc@yandex-team.ru>
Acked-by: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Alaa Hleihel [Thu, 10 Jun 2021 07:34:27 +0000 (10:34 +0300)]
IB/mlx5: Fix initializing CQ fragments buffer
The function init_cq_frag_buf() can be called to initialize the current CQ
fragments buffer cq->buf, or the temporary cq->resize_buf that is filled
during CQ resize operation.
However, the offending commit started to use function get_cqe() for
getting the CQEs, the issue with this change is that get_cqe() always
returns CQEs from cq->buf, which leads us to initialize the wrong buffer,
and in case of enlarging the CQ we try to access elements beyond the size
of the current cq->buf and eventually hit a kernel panic.
[exception RIP: init_cq_frag_buf+103]
[
ffff9f799ddcbcd8] mlx5_ib_resize_cq at
ffffffffc0835d60 [mlx5_ib]
[
ffff9f799ddcbdb0] ib_resize_cq at
ffffffffc05270df [ib_core]
[
ffff9f799ddcbdc0] llt_rdma_setup_qp at
ffffffffc0a6a712 [llt]
[
ffff9f799ddcbe10] llt_rdma_cc_event_action at
ffffffffc0a6b411 [llt]
[
ffff9f799ddcbe98] llt_rdma_client_conn_thread at
ffffffffc0a6bb75 [llt]
[
ffff9f799ddcbec8] kthread at
ffffffffa66c5da1
[
ffff9f799ddcbf50] ret_from_fork_nospec_begin at
ffffffffa6d95ddd
Fix it by getting the needed CQE by calling mlx5_frag_buf_get_wqe() that
takes the correct source buffer as a parameter.
Fixes:
388ca8be0037 ("IB/mlx5: Implement fragmented completion queue (CQ)")
Link: https://lore.kernel.org/r/90a0e8c924093cfa50a482880ad7e7edb73dc19a.1623309971.git.leonro@nvidia.com
Signed-off-by: Alaa Hleihel <alaa@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Aharon Landau [Thu, 10 Jun 2021 07:34:26 +0000 (10:34 +0300)]
RDMA/mlx5: Delete right entry from MR signature database
The value mr->sig is stored in the entry upon mr allocation, however, ibmr
is wrongly entered here as "old", therefore, xa_cmpxchg() does not replace
the entry with NULL, which leads to the following trace:
WARNING: CPU: 28 PID: 2078 at drivers/infiniband/hw/mlx5/main.c:3643 mlx5_ib_stage_init_cleanup+0x4d/0x60 [mlx5_ib]
Modules linked in: nvme_rdma nvme_fabrics nvme_core 8021q garp mrp bonding bridge stp llc rfkill rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_tad
CPU: 28 PID: 2078 Comm: reboot Tainted: G X --------- --- 5.13.0-0.rc2.19.el9.x86_64 #1
Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 2.9.1 12/07/2018
RIP: 0010:mlx5_ib_stage_init_cleanup+0x4d/0x60 [mlx5_ib]
Code: 8d bb 70 1f 00 00 be 00 01 00 00 e8 9d 94 ce da 48 3d 00 01 00 00 75 02 5b c3 0f 0b 5b c3 0f 0b 48 83 bb b0 20 00 00 00 74 d5 <0f> 0b eb d1 4
RSP: 0018:
ffffa8db06d33c90 EFLAGS:
00010282
RAX:
0000000000000000 RBX:
ffff97f890a44000 RCX:
ffff97f900ec0160
RDX:
0000000000000000 RSI:
0000000080080001 RDI:
ffff97f890a44000
RBP:
ffffffffc0c189b8 R08:
0000000000000001 R09:
0000000000000000
R10:
0000000000000001 R11:
0000000000000300 R12:
ffff97f890a44000
R13:
ffffffffc0c36030 R14:
00000000fee1dead R15:
0000000000000000
FS:
00007f0d5a8a3b40(0000) GS:
ffff98077fb80000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
0000555acbf4f450 CR3:
00000002a6f56002 CR4:
00000000001706e0
Call Trace:
mlx5r_remove+0x39/0x60 [mlx5_ib]
auxiliary_bus_remove+0x1b/0x30
__device_release_driver+0x17a/0x230
device_release_driver+0x24/0x30
bus_remove_device+0xdb/0x140
device_del+0x18b/0x3e0
mlx5_detach_device+0x59/0x90 [mlx5_core]
mlx5_unload_one+0x22/0x60 [mlx5_core]
shutdown+0x31/0x3a [mlx5_core]
pci_device_shutdown+0x34/0x60
device_shutdown+0x15b/0x1c0
__do_sys_reboot.cold+0x2f/0x5b
? vfs_writev+0xc7/0x140
? handle_mm_fault+0xc5/0x290
? do_writev+0x6b/0x110
do_syscall_64+0x40/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Fixes:
e6fb246ccafb ("RDMA/mlx5: Consolidate MR destruction to mlx5_ib_dereg_mr()")
Link: https://lore.kernel.org/r/f3f585ea0db59c2a78f94f65eedeafc5a2374993.1623309971.git.leonro@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Maor Gottlieb [Thu, 10 Jun 2021 07:34:25 +0000 (10:34 +0300)]
RDMA: Verify port when creating flow rule
Validate port value provided by the user and with that remove no longer
needed validation by the driver. The missing check in the mlx5_ib driver
could cause to the below oops.
Call trace:
_create_flow_rule+0x2d4/0xf28 [mlx5_ib]
mlx5_ib_create_flow+0x2d0/0x5b0 [mlx5_ib]
ib_uverbs_ex_create_flow+0x4cc/0x624 [ib_uverbs]
ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xd4/0x150 [ib_uverbs]
ib_uverbs_cmd_verbs.isra.7+0xb28/0xc50 [ib_uverbs]
ib_uverbs_ioctl+0x158/0x1d0 [ib_uverbs]
do_vfs_ioctl+0xd0/0xaf0
ksys_ioctl+0x84/0xb4
__arm64_sys_ioctl+0x28/0xc4
el0_svc_common.constprop.3+0xa4/0x254
el0_svc_handler+0x84/0xa0
el0_svc+0x10/0x26c
Code:
b9401260 f9615681 51000400 8b001c20 (
f9403c1a)
Fixes:
436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through uverbs")
Link: https://lore.kernel.org/r/faad30dc5219a01727f47db3dc2f029d07c82c00.1623309971.git.leonro@nvidia.com
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Desmond Cheong Zhi Xi [Wed, 9 Jun 2021 09:21:19 +0000 (17:21 +0800)]
drm: Lock pointer access in drm_master_release()
This patch eliminates the following smatch warning:
drivers/gpu/drm/drm_auth.c:320 drm_master_release() warn: unlocked access 'master' (line 318) expected lock '&dev->master_mutex'
The 'file_priv->master' field should be protected by the mutex lock to
'&dev->master_mutex'. This is because other processes can concurrently
modify this field and free the current 'file_priv->master'
pointer. This could result in a use-after-free error when 'master' is
dereferenced in subsequent function calls to
'drm_legacy_lock_master_cleanup()' or to 'drm_lease_revoke()'.
An example of a scenario that would produce this error can be seen
from a similar bug in 'drm_getunique()' that was reported by Syzbot:
https://syzkaller.appspot.com/bug?id=
148d2f1dfac64af52ffd27b661981a540724f803
In the Syzbot report, another process concurrently acquired the
device's master mutex in 'drm_setmaster_ioctl()', then overwrote
'fpriv->master' in 'drm_new_set_master()'. The old value of
'fpriv->master' was subsequently freed before the mutex was unlocked.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210609092119.173590-1-desmondcheongzx@gmail.com
Peter Zijlstra [Mon, 7 Jun 2021 09:45:58 +0000 (11:45 +0200)]
objtool: Fix .symtab_shndx handling for elf_create_undef_symbol()
When an ELF object uses extended symbol section indexes (IOW it has a
.symtab_shndx section), these must be kept in sync with the regular
symbol table (.symtab).
So for every new symbol we emit, make sure to also emit a
.symtab_shndx value to keep the arrays of equal size.
Note: since we're writing an UNDEF symbol, most GElf_Sym fields will
be 0 and we can repurpose one (st_size) to host the 0 for the xshndx
value.
Fixes:
2f2f7e47f052 ("objtool: Add elf_create_undef_symbol()")
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Suggested-by: Fangrui Song <maskray@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lkml.kernel.org/r/YL3q1qFO9QIRL/BA@hirez.programming.kicks-ass.net
CodyYao-oc [Mon, 7 Jun 2021 02:53:35 +0000 (10:53 +0800)]
x86/nmi_watchdog: Fix old-style NMI watchdog regression on old Intel CPUs
The following commit:
3a4ac121c2ca ("x86/perf: Add hardware performance events support for Zhaoxin CPU.")
Got the old-style NMI watchdog logic wrong and broke it for basically every
Intel CPU where it was active. Which is only truly old CPUs, so few people noticed.
On CPUs with perf events support we turn off the old-style NMI watchdog, so it
was pretty pointless to add the logic for X86_VENDOR_ZHAOXIN to begin with ... :-/
Anyway, the fix is to restore the old logic and add a 'break'.
[ mingo: Wrote a new changelog. ]
Fixes:
3a4ac121c2ca ("x86/perf: Add hardware performance events support for Zhaoxin CPU.")
Signed-off-by: CodyYao-oc <CodyYao-oc@zhaoxin.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210607025335.9643-1-CodyYao-oc@zhaoxin.com
Peter Zijlstra [Tue, 8 Jun 2021 17:54:15 +0000 (19:54 +0200)]
irq_work: Make irq_work_queue() NMI-safe again
Someone carelessly put NMI unsafe code in irq_work_queue(), breaking
just about every single user. Also, someone has a terrible comment
style.
Fixes:
e2b5bcf9f5ba ("irq_work: record irq_work_queue() call stack")
Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YL+uBq8LzXXZsYVf@hirez.programming.kicks-ass.net
Stefan Agner [Fri, 28 May 2021 20:39:31 +0000 (22:39 +0200)]
USB: serial: cp210x: fix alternate function for CP2102N QFN20
The QFN20 part has a different GPIO/port function assignment. The
configuration struct bit field ordered as TX/RX/RS485/WAKEUP/CLK
which exactly matches GPIO0-3 for QFN24/28. However, QFN20 has a
different GPIO to primary function assignment.
Special case QFN20 to follow to properly detect which GPIOs are
available.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://lore.kernel.org/r/51830b2b24118eb0f77c5c9ac64ffb2f519dbb1d.1622218300.git.stefan@agner.ch
Fixes:
c8acfe0aadbe ("USB: serial: cp210x: implement GPIO support for CP2102N")
Cc: stable@vger.kernel.org # 4.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Linus Torvalds [Wed, 9 Jun 2021 22:23:32 +0000 (15:23 -0700)]
Merge tag 'platform-drivers-x86-v5.13-3' of git://git./linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"Assorted pdx86 bug-fixes and some hardware-id additions for 5.13.
The mlxreg-hotplug revert is a regression-fix"
* tag 'platform-drivers-x86-v5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/mellanox: mlxreg-hotplug: Revert "move to use request_irq by IRQF_NO_AUTOEN flag"
platform/surface: dtx: Add missing mutex_destroy() call in failure path
platform/surface: aggregator: Fix event disable function
platform/x86: thinkpad_acpi: Add X1 Carbon Gen 9 second fan support
platform/surface: aggregator_registry: Add support for 13" Intel Surface Laptop 4
platform/surface: aggregator_registry: Update comments for 15" AMD Surface Laptop 4
Linus Torvalds [Wed, 9 Jun 2021 21:48:29 +0000 (14:48 -0700)]
Merge tag 'compiler-attributes-for-linus-v5.13-rc6' of git://github.com/ojeda/linux
Pull compiler attribute update from Miguel Ojeda:
"A trivial update to the compiler attributes: Add 'continue' keyword to
documentation in comment (from Wei Ming Chen)"
* tag 'compiler-attributes-for-linus-v5.13-rc6' of git://github.com/ojeda/linux:
Compiler Attributes: Add continue in comment
Linus Torvalds [Wed, 9 Jun 2021 21:47:16 +0000 (14:47 -0700)]
Merge tag 'clang-format-for-linus-v5.13-rc6' of git://github.com/ojeda/linux
Pull clang-format update from Miguel Ojeda:
"The usual update for `clang-format`"
* tag 'clang-format-for-linus-v5.13-rc6' of git://github.com/ojeda/linux:
clang-format: Update with the latest for_each macro list
Linus Torvalds [Wed, 9 Jun 2021 20:34:48 +0000 (13:34 -0700)]
Merge tag 'for-5.13-rc5-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes that people hit during testing.
Zoned mode fix:
- fix 32bit value wrapping when calculating superblock offsets
Error handling fixes:
- properly check filesystema and device uuids
- properly return errors when marking extents as written
- do not write supers if we have an fs error"
* tag 'for-5.13-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: promote debugging asserts to full-fledged checks in validate_super
btrfs: return value from btrfs_mark_extent_written() in case of error
btrfs: zoned: fix zone number to sector/physical calculation
btrfs: do not write supers if we have an fs error
Linus Torvalds [Wed, 9 Jun 2021 20:09:57 +0000 (13:09 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Bugfixes, including a TLB flush fix that affects processors without
nested page tables"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: fix previous commit for 32-bit builds
kvm: avoid speculation-based attacks from out-of-range memslot accesses
KVM: x86: Unload MMU on guest TLB flush if TDP disabled to force MMU sync
KVM: x86: Ensure liveliness of nested VM-Enter fail tracepoint message
selftests: kvm: Add support for customized slot0 memory size
KVM: selftests: introduce P47V64 for s390x
KVM: x86: Ensure PV TLB flush tracepoint reflects KVM behavior
KVM: X86: MMU: Use the correct inherited permissions to get shadow page
KVM: LAPIC: Write 0 to TMICT should also cancel vmx-preemption timer
KVM: SVM: Fix SEV SEND_START session length & SEND_UPDATE_DATA query length after commit
238eca821cee
Riwen Lu [Fri, 4 Jun 2021 03:09:59 +0000 (11:09 +0800)]
hwmon: (scpi-hwmon) shows the negative temperature properly
The scpi hwmon shows the sub-zero temperature in an unsigned integer,
which would confuse the users when the machine works in low temperature
environment. This shows the sub-zero temperature in an signed value and
users can get it properly from sensors.
Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Tested-by: Xin Chen <chenxin@kylinos.cn>
Link: https://lore.kernel.org/r/20210604030959.736379-1-luriwen@kylinos.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Wilken Gottwalt [Thu, 3 Jun 2021 11:51:02 +0000 (11:51 +0000)]
hwmon: (corsair-psu) fix suspend behavior
During standby some PSUs turn off the microcontroller. A re-init is
required during resume or the microcontroller stays unresponsive.
Fixes:
d115b51e0e56 ("hwmon: add Corsair PSU HID controller driver")
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/YLjCJiVtu5zgTabI@monster.powergraphx.local
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Nobuhiro Iwamatsu [Mon, 31 May 2021 13:46:55 +0000 (22:46 +0900)]
dt-bindings: hwmon: Fix typo in TI ADS7828 bindings
Fix typo in example for DT binding, changed from 'comatible'
to 'compatible'.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Link: https://lore.kernel.org/r/20210531134655.720462-1-iwamatsu@nigauri.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Ricky Wu [Mon, 7 Jun 2021 10:16:34 +0000 (18:16 +0800)]
misc: rtsx: separate aspm mode into MODE_REG and MODE_CFG
aspm (Active State Power Management)
rtsx_comm_set_aspm: this function is for driver to make sure
not enter power saving when processing of init and card_detcct
ASPM_MODE_CFG: 8411 5209 5227 5229 5249 5250
Change back to use original way to control aspm
ASPM_MODE_REG: 5227A 524A 5250A 5260 5261 5228
Keep the new way to control aspm
Fixes:
121e9c6b5c4c ("misc: rtsx: modify and fix init_hw function")
Reported-by: Chris Chiu <chris.chiu@canonical.com>
Tested-by: Gordon Lack <gordon.lack@dsl.pipex.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20210607101634.4948-1-ricky_wu@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Loic Poulain [Sun, 6 Jun 2021 15:37:41 +0000 (21:07 +0530)]
bus: mhi: pci-generic: Fix hibernation
This patch fixes crash after resuming from hibernation. The issue
occurs when mhi stack is builtin and so part of the 'restore-kernel',
causing the device to be resumed from 'restored kernel' with a no
more valid context (memory mappings etc...) and leading to spurious
crashes.
This patch fixes the issue by implementing proper freeze/restore
callbacks.
Link: https://lore.kernel.org/r/1622571445-4505-1-git-send-email-loic.poulain@linaro.org
Reported-by: Shujun Wang <wsj20369@163.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210606153741.20725-4-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Sun, 6 Jun 2021 15:37:40 +0000 (21:07 +0530)]
bus: mhi: pci_generic: Fix possible use-after-free in mhi_pci_remove()
This driver's remove path calls del_timer(). However, that function
does not wait until the timer handler finishes. This means that the
timer handler may still be running after the driver's remove function
has finished, which would result in a use-after-free.
Fix by calling del_timer_sync(), which makes sure the timer handler
has finished, and unable to re-schedule itself.
Link: https://lore.kernel.org/r/20210413160318.2003699-1-weiyongjun1@huawei.com
Fixes:
8562d4fe34a3 ("mhi: pci_generic: Add health-check")
Cc: stable <stable@vger.kernel.org>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Hemant kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210606153741.20725-3-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jarvis Jiang [Sun, 6 Jun 2021 15:37:39 +0000 (21:07 +0530)]
bus: mhi: pci_generic: T99W175: update channel name from AT to DUN
According to MHI v1.1 specification, change the channel name of T99W175
from "AT" to "DUN" (Dial-up networking) for both channel 32 and 33,
so that the channels can be bound to the Qcom WWAN control driver, and
device node such as /dev/wwan0p3DUN will be generated, which is very useful
for debugging modem
Link: https://lore.kernel.org/r/20210429014226.21017-1-jarvis.w.jiang@gmail.com
[mani: changed the dev node to /dev/wwan0p3DUN]
Fixes:
aac426562f56 ("bus: mhi: pci_generic: Introduce Foxconn T99W175 support")
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Jarvis Jiang <jarvis.w.jiang@gmail.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210606153741.20725-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shaokun Zhang [Mon, 7 Jun 2021 10:48:53 +0000 (18:48 +0800)]
vt: vt_kern.h, remove the repeated declaration
Function 'vt_set_led_state' is declared twice, so remove the
repeated declaration.
Cc: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Link: https://lore.kernel.org/r/1623062933-52943-1-git-send-email-zhangshaokun@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Baokun Li [Tue, 8 Jun 2021 02:48:43 +0000 (10:48 +0800)]
tty: tty_ldisc: fix doc warnings in tty_ldisc.c
Fixes the following W=1 kernel build warning(s):
drivers/tty/tty_ldisc.c:63: warning: Excess function
parameter 'disc' description in 'tty_register_ldisc'
drivers/tty/tty_ldisc.c:90: warning: Function parameter or
member 'ldisc' not described in 'tty_unregister_ldisc'
drivers/tty/tty_ldisc.c:90: warning: Excess function
parameter 'disc' description in 'tty_unregister_ldisc'
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20210608024843.2756746-1-libaokun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Shevchenko [Tue, 8 Jun 2021 14:42:38 +0000 (17:42 +0300)]
serial: 8250_exar: Extract exar_get_platform() helper
We would like to use DMI matching in other functions as well.
Hence, extract it as exar_get_platform() helper function.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210608144239.12697-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Shevchenko [Tue, 8 Jun 2021 14:42:37 +0000 (17:42 +0300)]
serial: 8250_exar: Avoid NULL pointer dereference at ->exit()
It's possible that during ->exit() the private_data is NULL,
for instance when there was no GPIO device instantiated.
Due to this we may not dereference it. Add a respective check.
Note, for now ->exit() only makes sense when GPIO device
was instantiated, that's why we may use the check for entire
function.
Fixes:
81171e7d31a6 ("serial: 8250_exar: Constify the software nodes")
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20210608144239.12697-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Geert Uytterhoeven [Mon, 7 Jun 2021 14:43:45 +0000 (16:43 +0200)]
serial: sh-sci: Remove unused STEPFN() macro
The last user of the STEPFN() macro was removed in commit
d5cb1319a91d4f13 ("serial: sh-sci: Remove manual break debouncing").
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/970387d104dea5bb7ea674bb89229641467e629b.1623076891.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mika Westerberg [Wed, 9 Jun 2021 10:25:33 +0000 (13:25 +0300)]
ACPI: Pass the same capabilities to the _OSC regardless of the query flag
Commit
719e1f561afb ("ACPI: Execute platform _OSC also with query bit
clear") makes acpi_bus_osc_negotiate_platform_control() not only query
the platforms capabilities but it also commits the result back to the
firmware to report which capabilities are supported by the OS back to
the firmware
On certain systems the BIOS loads SSDT tables dynamically based on the
capabilities the OS claims to support. However, on these systems the
_OSC actually clears some of the bits (under certain conditions) so what
happens is that now when we call the _OSC twice the second time we pass
the cleared values and that results errors like below to appear on the
system log:
ACPI BIOS Error (bug): Could not resolve symbol [\_PR.PR00._CPC], AE_NOT_FOUND (
20210105/psargs-330)
ACPI Error: Aborting method \_PR.PR01._CPC due to previous error (AE_NOT_FOUND) (
20210105/psparse-529)
In addition the ACPI 6.4 spec says following [1]:
If the OS declares support of a feature in the Support Field in one
call to _OSC, then it must preserve the set state of that bit
(declaring support for that feature) in all subsequent calls.
Based on the above we can fix the issue by passing the same set of
capabilities to the platform wide _OSC in both calls regardless of the
query flag.
While there drop the context.ret.length checks which were wrong to begin
with (as the length is number of bytes not elements). This is already
checked in acpi_run_osc() that also returns an error in that case.
Includes fixes by Hans de Goede.
[1] https://uefi.org/specs/ACPI/6.4/06_Device_Configuration/Device_Configuration.html#sequence-of-osc-calls
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213023
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1963717
Fixes:
719e1f561afb ("ACPI: Execute platform _OSC also with query bit clear")
Cc: 5.12+ <stable@vger.kernel.org> # 5.12+
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Walleij [Tue, 8 Jun 2021 21:33:18 +0000 (23:33 +0200)]
drm/mcde: Fix off by 10^3 in calculation
The calclulation of how many bytes we stuff into the
DSI pipeline for video mode panels is off by three
orders of magnitude because we did not account for the
fact that the DRM mode clock is in kilohertz rather
than hertz.
This used to be:
drm_mode_vrefresh(mode) * mode->htotal * mode->vtotal
which would become for example for s6e63m0:
60 x 514 x 831 =
25628040 Hz, but mode->clock is
25628 as it is in kHz.
This affects only the Samsung GT-I8190 "Golden" phone
right now since it is the only MCDE device with a video
mode display.
Curiously some specimen work with this code and wild
settings in the EOL and empty packets at the end of the
display, but I have noticed an eeire flicker until now.
Others were not so lucky and got black screens.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Stephan Gerhold <stephan@gerhold.net>
Fixes:
920dd1b1425b ("drm/mcde: Use mode->clock instead of reverse calculating it from the vrefresh")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210608213318.3897858-1-linus.walleij@linaro.org
Bjorn Andersson [Tue, 8 Jun 2021 18:07:02 +0000 (11:07 -0700)]
pinctrl: qcom: Make it possible to select SC8180x TLMM
It's currently not possible to select the SC8180x TLMM driver, due to it
selecting PINCTRL_MSM, rather than depending on the same. Fix this.
Fixes:
97423113ec4b ("pinctrl: qcom: Add sc8180x TLMM driver")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210608180702.2064253-1-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Lars-Peter Clausen [Mon, 7 Jun 2021 10:01:19 +0000 (12:01 +0200)]
staging: ralink-gdma: Remove incorrect author information
Lars did not write the ralink-gdma driver. Looks like his name just got
copy&pasted from another similar DMA driver. Remove his name from the
copyright and MODULE_AUTHOR.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20210607100119.26983-1-lars@metafoo.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wenli Looi [Tue, 8 Jun 2021 06:46:20 +0000 (23:46 -0700)]
staging: rtl8723bs: Fix uninitialized variables
The sinfo.pertid and sinfo.generation variables are not initialized and
it causes a crash when we use this as a wireless access point.
[ 456.873025] ------------[ cut here ]------------
[ 456.878198] kernel BUG at mm/slub.c:3968!
[ 456.882680] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[ snip ]
[ 457.271004] Backtrace:
[ 457.273733] [<
c02b7ee4>] (kfree) from [<
c0e2a470>] (nl80211_send_station+0x954/0xfc4)
[ 457.282481] r9:
eccca0c0 r8:
e8edfec0 r7:
00000000 r6:
00000011 r5:
e80a9480 r4:
e8edfe00
[ 457.291132] [<
c0e29b1c>] (nl80211_send_station) from [<
c0e2b18c>] (cfg80211_new_sta+0x90/0x1cc)
[ 457.300850] r10:
e80a9480 r9:
e8edfe00 r8:
ea678cca r7:
00000a20 r6:
00000000 r5:
ec46d000
[ 457.309586] r4:
ec46d9e0
[ 457.312433] [<
c0e2b0fc>] (cfg80211_new_sta) from [<
bf086684>] (rtw_cfg80211_indicate_sta_assoc+0x80/0x9c [r8723bs])
[ 457.324095] r10:
00009930 r9:
e85b9d80 r8:
bf091050 r7:
00000000 r6:
00000000 r5:
0000001c
[ 457.332831] r4:
c1606788
[ 457.335692] [<
bf086604>] (rtw_cfg80211_indicate_sta_assoc [r8723bs]) from [<
bf03df38>] (rtw_stassoc_event_callback+0x1c8/0x1d4 [r8723bs])
[ 457.349489] r7:
ea678cc0 r6:
000000a1 r5:
f1225f84 r4:
f086b000
[ 457.355845] [<
bf03dd70>] (rtw_stassoc_event_callback [r8723bs]) from [<
bf048e4c>] (mlme_evt_hdl+0x8c/0xb4 [r8723bs])
[ 457.367601] r7:
c1604900 r6:
f086c4b8 r5:
00000000 r4:
f086c000
[ 457.373959] [<
bf048dc0>] (mlme_evt_hdl [r8723bs]) from [<
bf03693c>] (rtw_cmd_thread+0x198/0x3d8 [r8723bs])
[ 457.384744] r5:
f086e000 r4:
f086c000
[ 457.388754] [<
bf0367a4>] (rtw_cmd_thread [r8723bs]) from [<
c014a214>] (kthread+0x170/0x174)
[ 457.398083] r10:
ed7a57e8 r9:
bf0367a4 r8:
f086b000 r7:
e8ede000 r6:
00000000 r5:
e9975200
[ 457.406828] r4:
e8369900
[ 457.409653] [<
c014a0a4>] (kthread) from [<
c01010e8>] (ret_from_fork+0x14/0x2c)
[ 457.417718] Exception stack(0xe8edffb0 to 0xe8edfff8)
[ 457.423356] ffa0:
00000000 00000000 00000000 00000000
[ 457.432492] ffc0:
00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 457.441618] ffe0:
00000000 00000000 00000000 00000000 00000013 00000000
[ 457.449006] r10:
00000000 r9:
00000000 r8:
00000000 r7:
00000000 r6:
00000000 r5:
c014a0a4
[ 457.457750] r4:
e9975200
[ 457.460574] Code:
1a000003 e5953004 e3130001 1a000000 (
e7f001f2)
[ 457.467381] ---[ end trace
4acbc8c15e9e6aa7 ]---
Link: https://forum.armbian.com/topic/14727-wifi-ap-kernel-bug-in-kernel-5444/
Fixes:
8689c051a201 ("cfg80211: dynamically allocate per-tid stats for station info")
Fixes:
f5ea9120be2e ("nl80211: add generation number to all dumps")
Signed-off-by: Wenli Looi <wlooi@ucalgary.ca>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210608064620.74059-1-wlooi@ucalgary.ca
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Yang Yingliang [Sat, 5 Jun 2021 08:09:14 +0000 (16:09 +0800)]
usb: misc: brcmstb-usb-pinmap: check return value after calling platform_get_resource()
It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.
Fixes:
517c4c44b323 ("usb: Add driver to allow any GPIO to be used for 7211 USB signals")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210605080914.2057758-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Marian-Cristian Rotariu [Tue, 8 Jun 2021 16:26:50 +0000 (19:26 +0300)]
usb: dwc3: ep0: fix NULL pointer exception
There is no validation of the index from dwc3_wIndex_to_dep() and we might
be referring a non-existing ep and trigger a NULL pointer exception. In
certain configurations we might use fewer eps and the index might wrongly
indicate a larger ep index than existing.
By adding this validation from the patch we can actually report a wrong
index back to the caller.
In our usecase we are using a composite device on an older kernel, but
upstream might use this fix also. Unfortunately, I cannot describe the
hardware for others to reproduce the issue as it is a proprietary
implementation.
[ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address
00000000000000a4
[ 82.966891] Mem abort info:
[ 82.969663] ESR = 0x96000006
[ 82.972703] Exception class = DABT (current EL), IL = 32 bits
[ 82.978603] SET = 0, FnV = 0
[ 82.981642] EA = 0, S1PTW = 0
[ 82.984765] Data abort info:
[ 82.987631] ISV = 0, ISS = 0x00000006
[ 82.991449] CM = 0, WnR = 0
[ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp =
00000000c6210ccc
[ 83.000999] [
00000000000000a4] pgd=
0000000053aa5003, pud=
0000000053aa5003, pmd=
0000000000000000
[ 83.009685] Internal error: Oops:
96000006 [#1] PREEMPT SMP
[ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c)
[ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1
[ 83.044836] pstate:
60000085 (nZCv daIf -PAN -UAO)
[ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c
[ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94
...
[ 83.141788] Call trace:
[ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c
[ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94
[ 83.181546] ---[ end trace
aac6b5267d84c32f ]---
Signed-off-by: Marian-Cristian Rotariu <marian.c.rotariu@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210608162650.58426-1-marian.c.rotariu@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linyu Yuan [Tue, 8 Jun 2021 23:35:47 +0000 (07:35 +0800)]
usb: gadget: eem: fix wrong eem header operation
when skb_clone() or skb_copy_expand() fail,
it should pull skb with lengh indicated by header,
or not it will read network data and check it as header.
Cc: <stable@vger.kernel.org>
Signed-off-by: Linyu Yuan <linyyuan@codeaurora.com>
Link: https://lore.kernel.org/r/20210608233547.3767-1-linyyuan@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / platform / kernel / linux-starfive.git / log