To pick the changes in:
d495f942f4 ("KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT")
That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.
This is also by now used by tools/testing/selftests/kvm/, a simple test
build succeeded.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YnE5BIweGmCkpOTN@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently the `perf test` always fails the coresight test like:
89: Check Arm CoreSight trace data recording and synthesized samples: FAILED!
That is because the test_arm_coresight.sh is attempting to SIGINT the
parent but is using $$ rather than $PPID and it sigint's itself when
run under the perf test framework.
Since this is done in a trap clause it ends up returning a non zero
return.
Since $PPID is a bash ism and not all distros are linking /bin/sh to
bash, the alternative parent pid lookups are uglier than just dropping
the kill, and its not strictly needed, lets pick the simple solution and
drop the sigint.
Fixes: 133fe2e617 ("perf tests: Improve temp file cleanup in test_arm_coresight.sh")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Jeremy Linton <jeremy.linton@arm.com>
Link: https://lore.kernel.org/r/20220428151947.290146-1-jeremy.linton@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
BUG_ON is a no-op if NDEBUG is defined, otherwise it is an assert.
Compiling with NDEBUG yields:
bench/numa.c: In function ‘bind_to_cpu’:
bench/numa.c:314:1: error: control reaches end of non-void function [-Werror=return-type]
314 | }
| ^
bench/numa.c: In function ‘bind_to_node’:
bench/numa.c:367:1: error: control reaches end of non-void function [-Werror=return-type]
367 | }
| ^
Add return statements to cover this case.
Reviewed-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220428202912.1056444-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Some reverts of existing patches, which were necessary because of boot
issues due to wrong CPU clock handling and cache issues which led to
userspace segfaults with 32bit kernels.
Other than that just small updates and fixes, e.g. defconfig updates,
spelling fixes, a clocksource fix, boot topology fixes and a fix for
/proc/cpuinfo output to satisfy lscpu.
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Merge tag 'for-5.18/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
"Some reverts of existing patches, which were necessary because of boot
issues due to wrong CPU clock handling and cache issues which led to
userspace segfaults with 32bit kernels. Dave has a whole bunch of
upcoming cache fixes which I then plan to push in the next merge
window.
Other than that just small updates and fixes, e.g. defconfig updates,
spelling fixes, a clocksource fix, boot topology fixes and a fix for
/proc/cpuinfo output to satisfy lscpu"
* tag 'for-5.18/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
Revert "parisc: Increase parisc_cache_flush_threshold setting"
parisc: Mark cr16 clock unstable on all SMP machines
parisc: Fix typos in comments
parisc: Change MAX_ADDRESS to become unsigned long long
parisc: Merge model and model name into one line in /proc/cpuinfo
parisc: Re-enable GENERIC_CPU_DEVICES for !SMP
parisc: Update 32- and 64-bit defconfigs
parisc: Only list existing CPUs in cpu_possible_mask
Revert "parisc: Fix patch code locking and flushing"
Revert "parisc: Mark sched_clock unstable only if clocks are not syncronized"
Revert "parisc: Mark cr16 CPU clocksource unstable on all SMP machines"
- Fix the DWARF CFI in our VDSO time functions, allowing gdb to backtrace through them
correctly.
- Fix a buffer overflow in the papr_scm driver, only triggerable by hypervisor input.
- A fix in the recently added QoS handling for VAS (used for communicating with
coprocessors).
Thanks to: Alan Modra, Haren Myneni, Kajol Jain, Segher Boessenkool.
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Merge tag 'powerpc-5.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix the DWARF CFI in our VDSO time functions, allowing gdb to
backtrace through them correctly.
- Fix a buffer overflow in the papr_scm driver, only triggerable by
hypervisor input.
- A fix in the recently added QoS handling for VAS (used for
communicating with coprocessors).
Thanks to Alan Modra, Haren Myneni, Kajol Jain, and Segher Boessenkool.
* tag 'powerpc-5.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/papr_scm: Fix buffer overflow issue with CONFIG_FORTIFY_SOURCE
powerpc/vdso: Fix incorrect CFI in gettimeofday.S
powerpc/pseries/vas: Use QoS credits from the userspace
- Prevent FPU state corruption. The condition in irq_fpu_usable() grants
FPU usage when the FPU is not used in the kernel. That's just wrong as
it does not take the fpregs_lock()'ed regions into account. If FPU usage
happens within such a region from interrupt context, then the FPU state
gets corrupted. That's a long standing bug, which got unearthed by the
recent changes to the random code.
- Josh wants to use his kernel.org email address
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Merge tag 'x86-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A fix and an email address update:
- Prevent FPU state corruption.
The condition in irq_fpu_usable() grants FPU usage when the FPU is
not used in the kernel. That's just wrong as it does not take the
fpregs_lock()'ed regions into account. If FPU usage happens within
such a region from interrupt context, then the FPU state gets
corrupted.
That's a long standing bug, which got unearthed by the recent
changes to the random code.
- Josh wants to use his kernel.org email address"
* tag 'x86-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Prevent FPU state corruption
MAINTAINERS: Update Josh Poimboeuf's email address
- Mark the NMI safe time accessors notrace to prevent tracer recursion
when they are selected as trace clocks.
- John Stultz has a new email address
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Merge tag 'timers-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A fix and an email address update:
- Mark the NMI safe time accessors notrace to prevent tracer
recursion when they are selected as trace clocks.
- John Stultz has a new email address"
* tag 'timers-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Mark NMI safe time accessors as notrace
MAINTAINERS: Update email address for John Stultz
request/free_irq() can result in a hang because the interrupt thread did
not reach the thread function and got stopped in the kthread core
already. That leaves a state active counter arround which makes a
invocation of synchronized_irq() on that interrupt hang forever. Ensure
that the thread reached the thread function in request_irq() to prevent
that.
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Merge tag 'irq-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A fix for the threaded interrupt core.
A quick sequence of request/free_irq() can result in a hang because
the interrupt thread did not reach the thread function and got stopped
in the kthread core already. That leaves a state active counter
arround which makes a invocation of synchronized_irq() on that
interrupt hang forever.
Ensure that the thread reached the thread function in request_irq() to
prevent that"
* tag 'irq-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Synchronize interrupt thread startup
The cr16 interval timers are not synchronized across CPUs, even with just
one dual-core CPU. This becomes visible if the machines have a longer
uptime.
Signed-off-by: Helge Deller <deller@gmx.de>
Various spelling mistakes in comments.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
Dave noticed that for the 32-bit kernel MAX_ADDRESS should be a ULL,
otherwise this define would become 0:
MAX_ADDRESS (1UL << MAX_ADDRBITS)
It has no real effect on the kernel.
Signed-off-by: Helge Deller <deller@gmx.de>
Noticed-by: John David Anglin <dave.anglin@bell.net>
The Linux tool "lscpu" shows the double amount of CPUs if we have
"model" and "model name" in two different lines in /proc/cpuinfo.
This change combines the model and the model name into one line.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
In commit 62773112ac ("parisc: Switch from GENERIC_CPU_DEVICES to
GENERIC_ARCH_TOPOLOGY") GENERIC_CPU_DEVICES was unconditionally turned
off, but this triggers a warning in topology_add_dev(). Turning it back
on for the !SMP case avoids this warning.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 62773112ac ("parisc: Switch from GENERIC_CPU_DEVICES to GENERIC_ARCH_TOPOLOGY")
Signed-off-by: Helge Deller <deller@gmx.de>
Enable CONFIG_CGROUPS=y on 32-bit defconfig for systemd-support, and
enable CONFIG_NAMESPACES and CONFIG_USER_NS.
Signed-off-by: Helge Deller <deller@gmx.de>
The inventory knows which CPUs are in the system, so this bitmask should
be in cpu_possible_mask instead of the bitmask based on CONFIG_NR_CPUS.
Reset the cpu_possible_mask before scanning the system for CPUs, and
mark each existing CPU as possible during initialization of that CPU.
This avoids those warnings later on too:
register_cpu_capacity_sysctl: too early to get CPU4 device!
Signed-off-by: Helge Deller <deller@gmx.de>
Noticed-by: John David Anglin <dave.anglin@bell.net>
This reverts commit d97180ad68.
It triggers RCU stalls at boot with a 32-bit kernel.
Signed-off-by: Helge Deller <deller@gmx.de>
Noticed-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v5.15+
This reverts commit afdb4a5b1d.
It triggers RCU stalls at boot with a 32-bit kernel.
Signed-off-by: Helge Deller <deller@gmx.de>
Noticed-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v5.16+
early. The PASID needs to be tied to the mm lifetime, not to the address
space lifetime.
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Merge tag 'core-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull PASID fix from Thomas Gleixner:
"A single bugfix for the PASID management code, which freed the PASID
too early. The PASID needs to be tied to the mm lifetime, not to the
address space lifetime"
* tag 'core-urgent-2022-05-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mm: Fix PASID use-after-free issue
It became slightly larger as I've been off in the last weeks.
The majority of changes at this PR is about ASoC, the fixes for
dmaengine and for for addressing issues reported by CI, as well as
other device-specific small fixes. Also, the fixes for FireWire
core stack and the usual HD-audio quirks are included.
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Merge tag 'sound-5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This became slightly larger as I've been off in the last weeks.
The majority of changes here is about ASoC, fixes for dmaengine
and for addressing issues reported by CI, as well as other
device-specific small fixes.
Also, fixes for FireWire core stack and the usual HD-audio quirks
are included"
* tag 'sound-5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
ASoC: SOF: Fix NULL pointer exception in sof_pci_probe callback
ASoC: ops: Validate input values in snd_soc_put_volsw_range()
ASoC: dmaengine: Restore NULL prepare_slave_config() callback
ASoC: atmel: mchp-pdmc: set prepare_slave_config
ASoC: max98090: Generate notifications on changes for custom control
ASoC: max98090: Reject invalid values in custom control put()
ALSA: fireworks: fix wrong return count shorter than expected by 4 bytes
ALSA: hda/realtek: Add quirk for Yoga Duet 7 13ITL6 speakers
firewire: core: extend card->lock in fw_core_handle_bus_reset
firewire: remove check of list iterator against head past the loop body
firewire: fix potential uaf in outbound_phy_packet_callback()
ASoC: rt9120: Correct the reg 0x09 size to one byte
ALSA: hda/realtek: Enable mute/micmute LEDs support for HP Laptops
ALSA: hda/realtek: Fix mute led issue on thinkpad with cs35l41 s-codec
ASoC: meson: axg-card: Fix nonatomic links
ASoC: meson: axg-tdm-interface: Fix formatters in trigger"
ASoC: soc-ops: fix error handling
ASoC: meson: Fix event generation for G12A tohdmi mux
ASoC: meson: Fix event generation for AUI CODEC mux
ASoC: meson: Fix event generation for AUI ACODEC mux
...
The last two users were floppy.c and ataflop.c respectively, it was
verified that no other drivers makes use of this, so let's remove it.
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Minh Yuan <yuanmingbuaa@gmail.com>
Cc: Denis Efremov <efremov@linux.com>,
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the last driver making use of fd_request->error_count, which is
easy to get wrong as was shown in floppy.c. We don't need to keep it
there, it can be moved to the atari_floppy_struct instead, so let's do
this.
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Minh Yuan <yuanmingbuaa@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Interrupt handler bad_flp_intr() may cause a UAF on the recently freed
request just to increment the error count. There's no point keeping
that one in the request anyway, and since the interrupt handler uses a
static pointer to the error which cannot be kept in sync with the
pending request, better make it use a static error counter that's reset
for each new request. This reset now happens when entering
redo_fd_request() for a new request via set_next_request().
One initial concern about a single error counter was that errors on one
floppy drive could be reported on another one, but this problem is not
real given that the driver uses a single drive at a time, as that
PC-compatible controllers also have this limitation by using shared
signals. As such the error count is always for the "current" drive.
Reported-by: Minh Yuan <yuanmingbuaa@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Tested-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A larger collection of fixes than I'd like, mainly because mixer-test
is making it's way into the CI systems and turning up issues on a wider
range of systems. The most substantial thing though is a revert and an
alternative fix for a dmaengine issue where the fix caused disruption
for some other configurations, the core fix is backed out an a driver
specific thing done instead.
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Merge tag 'asoc-fix-v5.18-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.18
A larger collection of fixes than I'd like, mainly because mixer-test
is making it's way into the CI systems and turning up issues on a wider
range of systems. The most substantial thing though is a revert and an
alternative fix for a dmaengine issue where the fix caused disruption
for some other configurations, the core fix is backed out an a driver
specific thing done instead.
Ensure that the gssproxy client connects to the server from the gssproxy
daemon process context so that the AF_LOCAL socket connection is done
using the correct path and namespaces.
Fixes: 1d658336b0 ("SUNRPC: Add RPC based upcall mechanism for RPCGSS auth")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This reverts commit 892de36fd4.
The gssproxy server is unresponsive when it calls into the kernel to
start the upcall service, so it will not reply to our RPC ping at all.
Reported-by: "J.Bruce Fields" <bfields@fieldses.org>
Fixes: 892de36fd4 ("SUNRPC: Ensure gss-proxy connects on setup")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
- fix the bounds check for the 'gpio-reserved-ranges' device property in
gpiolib-of
- drop the assignment of the pwm base number in gpio-mvebu (this was missed
by the patch doing it globally for all pwm drivers)
- fix the fwnode assignment (use own fwnode, not the parent's one) for the
GPIO irqchip in gpio-visconti
- update the irq_stat field before checking the trigger field in gpio-pca953x
- update GPIO entry in MAINTAINERS
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Merge tag 'gpio-fixes-for-v5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix the bounds check for the 'gpio-reserved-ranges' device property
in gpiolib-of
- drop the assignment of the pwm base number in gpio-mvebu (this was
missed by the patch doing it globally for all pwm drivers)
- fix the fwnode assignment (use own fwnode, not the parent's one) for
the GPIO irqchip in gpio-visconti
- update the irq_stat field before checking the trigger field in
gpio-pca953x
- update GPIO entry in MAINTAINERS
* tag 'gpio-fixes-for-v5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: pca953x: fix irq_stat not updated when irq is disabled (irq_mask not set)
gpio: visconti: Fix fwnode of GPIO IRQ
MAINTAINERS: update the GPIO git tree entry
gpio: mvebu: drop pwm base assignment
gpiolib: of: fix bounds check for 'gpio-reserved-ranges'
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Merge tag 'block-5.18-2022-05-06' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A single revert for a change that isn't needed in 5.18, and a small
series for s390/dasd"
* tag 'block-5.18-2022-05-06' of git://git.kernel.dk/linux-block:
s390/dasd: Use kzalloc instead of kmalloc/memset
s390/dasd: Fix read inconsistency for ESE DASD devices
s390/dasd: Fix read for ESE with blksize < 4k
s390/dasd: prevent double format of tracks for ESE devices
s390/dasd: fix data corruption for ESE devices
Revert "block: release rq qos structures for queue without disk"
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Merge tag 'io_uring-5.18-2022-05-06' of git://git.kernel.dk/linux-block
Pull io_uring fix from Jens Axboe:
"Just a single file assignment fix this week"
* tag 'io_uring-5.18-2022-05-06' of git://git.kernel.dk/linux-block:
io_uring: assign non-fixed early for async work
Commit d258d00fb9 ("fbdev: efifb: Cleanup fb_info in .fb_destroy rather
than .remove") attempted to fix a use-after-free error due driver freeing
the fb_info in the .remove handler instead of doing it in .fb_destroy.
But ironically that change introduced yet another use-after-free since the
fb_info was still used after the free.
This should fix for good by freeing the fb_info at the end of the handler.
Fixes: d258d00fb9 ("fbdev: efifb: Cleanup fb_info in .fb_destroy rather than .remove")
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Thomas Zimmermann <tzimemrmann@suse.de>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220506132225.588379-1-javierm@redhat.com
Using min_t(int, ...) as a potential array index implies to the compiler
that negative offsets should be allowed. This is not the case, though.
Replace "int" with "unsigned int". Fixes the following warning exposed
under future CONFIG_FORTIFY_SOURCE improvements:
In file included from include/linux/string.h:253,
from include/linux/bitmap.h:11,
from include/linux/cpumask.h:12,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/rcupdate.h:29,
from include/linux/rculist.h:11,
from include/linux/pid.h:5,
from include/linux/sched.h:14,
from include/linux/delay.h:23,
from drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:35:
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c: In function 't4_get_raw_vpd_params':
include/linux/fortify-string.h:46:33: warning: '__builtin_memcpy' pointer overflow between offset 29 and size [2147483648, 4294967295] [-Warray-bounds]
46 | #define __underlying_memcpy __builtin_memcpy
| ^
include/linux/fortify-string.h:388:9: note: in expansion of macro '__underlying_memcpy'
388 | __underlying_##op(p, q, __fortify_size); \
| ^~~~~~~~~~~~~
include/linux/fortify-string.h:433:26: note: in expansion of macro '__fortify_memcpy_chk'
433 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \
| ^~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2796:9: note: in expansion of macro 'memcpy'
2796 | memcpy(p->id, vpd + id, min_t(int, id_len, ID_LEN));
| ^~~~~~
include/linux/fortify-string.h:46:33: warning: '__builtin_memcpy' pointer overflow between offset 0 and size [2147483648, 4294967295] [-Warray-bounds]
46 | #define __underlying_memcpy __builtin_memcpy
| ^
include/linux/fortify-string.h:388:9: note: in expansion of macro '__underlying_memcpy'
388 | __underlying_##op(p, q, __fortify_size); \
| ^~~~~~~~~~~~~
include/linux/fortify-string.h:433:26: note: in expansion of macro '__fortify_memcpy_chk'
433 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \
| ^~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:2798:9: note: in expansion of macro 'memcpy'
2798 | memcpy(p->sn, vpd + sn, min_t(int, sn_len, SERNUM_LEN));
| ^~~~~~
Additionally remove needless cast from u8[] to char * in last strim()
call.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202205031926.FVP7epJM-lkp@intel.com
Fixes: fc9279298e ("cxgb4: Search VPD with pci_vpd_find_ro_info_keyword()")
Fixes: 24c521f81c ("cxgb4: Use pci_vpd_find_id_string() to find VPD ID string")
Cc: Raju Rangoju <rajur@chelsio.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220505233101.1224230-1-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netlink_recvmsg() does not need to change transport header.
If transport header was needed, it should have been reset
by the producer (netlink_dump()), not the consumer(s).
The following trace probably happened when multiple threads
were using MSG_PEEK.
BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg
write to 0xffff88811e9f15b2 of 2 bytes by task 32012 on cpu 1:
skb_reset_transport_header include/linux/skbuff.h:2760 [inline]
netlink_recvmsg+0x1de/0x790 net/netlink/af_netlink.c:1978
sock_recvmsg_nosec net/socket.c:948 [inline]
sock_recvmsg net/socket.c:966 [inline]
__sys_recvfrom+0x204/0x2c0 net/socket.c:2097
__do_sys_recvfrom net/socket.c:2115 [inline]
__se_sys_recvfrom net/socket.c:2111 [inline]
__x64_sys_recvfrom+0x74/0x90 net/socket.c:2111
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
write to 0xffff88811e9f15b2 of 2 bytes by task 32005 on cpu 0:
skb_reset_transport_header include/linux/skbuff.h:2760 [inline]
netlink_recvmsg+0x1de/0x790 net/netlink/af_netlink.c:1978
____sys_recvmsg+0x162/0x2f0
___sys_recvmsg net/socket.c:2674 [inline]
__sys_recvmsg+0x209/0x3f0 net/socket.c:2704
__do_sys_recvmsg net/socket.c:2714 [inline]
__se_sys_recvmsg net/socket.c:2711 [inline]
__x64_sys_recvmsg+0x42/0x50 net/socket.c:2711
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0xffff -> 0x0000
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 32005 Comm: syz-executor.4 Not tainted 5.18.0-rc1-syzkaller-00328-ge1f700ebd6be-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220505161946.2867638-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If successful ida_simple_get() calls are not undone when needed, some
additional memory may be allocated and wasted.
Here, an ID between 0 and MAX_INT is required. If this ID is >=100, it is
not taken into account and is wasted. It should be released.
Instead of calling ida_simple_remove(), take advantage of the 'max'
parameter to require the ID not to be too big. Should it be too big, it
is not allocated and don't need to be freed.
While at it, use ida_alloc_xxx()/ida_free() instead to
ida_simple_get()/ida_simple_remove().
The latter is deprecated and more verbose.
Fixes: db1a0ae214 ("drm/nouveau/bl: Assign different names to interfaces")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Lyude Paul <lyude@redhat.com>
[Fixed formatting warning from checkpatch]
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9ba85bca59df6813dc029e743a836451d5173221.1644386541.git.christophe.jaillet@wanadoo.fr
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Merge tag 'for-5.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Regression fixes in zone activation:
- move a loop invariant out of the loop to avoid checking space
status
- properly handle unlimited activation
Other fixes:
- for subpage, force the free space v2 mount to avoid a warning and
make it easy to switch a filesystem on different page size systems
- export sysfs status of exclusive operation 'balance paused', so the
user space tools can recognize it and allow adding a device with
paused balance
- fix assertion failure when logging directory key range item"
* tag 'for-5.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: sysfs: export the balance paused state of exclusive operation
btrfs: fix assertion failure when logging directory key range item
btrfs: zoned: activate block group properly on unlimited active zone device
btrfs: zoned: move non-changing condition check out of the loop
btrfs: force v2 space cache usage for subpage mount
Highlights include:
Stable fixes:
- Fix a socket leak when setting up an AF_LOCAL RPC client
- Ensure that knfsd connects to the gss-proxy daemon on setup
Bugfixes:
- Fix a refcount leak when migrating a task off an offlined transport
- Don't gratuitously invalidate inode attributes on delegation return
- Don't leak sockets in xs_local_connect()
- Ensure timely close of disconnected AF_LOCAL sockets
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Merge tag 'nfs-for-5.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client fixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- Fix a socket leak when setting up an AF_LOCAL RPC client
- Ensure that knfsd connects to the gss-proxy daemon on setup
Bugfixes:
- Fix a refcount leak when migrating a task off an offlined transport
- Don't gratuitously invalidate inode attributes on delegation return
- Don't leak sockets in xs_local_connect()
- Ensure timely close of disconnected AF_LOCAL sockets"
* tag 'nfs-for-5.18-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
Revert "SUNRPC: attempt AF_LOCAL connect on setup"
SUNRPC: Ensure gss-proxy connects on setup
SUNRPC: Ensure timely close of disconnected AF_LOCAL sockets
SUNRPC: Don't leak sockets in xs_local_connect()
NFSv4: Don't invalidate inode attributes on delegation return
SUNRPC release the transport of a relocated task with an assigned transport
* Account for family 17h event renumberings in AMD PMU emulation
* Remove CPUID leaf 0xA on AMD processors
* Fix lockdep issue with locking all vCPUs
* Fix loss of A/D bits in SPTEs
* Fix syzkaller issue with invalid guest state
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86:
- Account for family 17h event renumberings in AMD PMU emulation
- Remove CPUID leaf 0xA on AMD processors
- Fix lockdep issue with locking all vCPUs
- Fix loss of A/D bits in SPTEs
- Fix syzkaller issue with invalid guest state"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: Exit to userspace if vCPU has injected exception and invalid state
KVM: SEV: Mark nested locking of vcpu->lock
kvm: x86/cpuid: Only provide CPUID leaf 0xA if host has architectural PMU
KVM: x86/svm: Account for family 17h event renumberings in amd_pmc_perf_hw_id
KVM: x86/mmu: Use atomic XCHG to write TDP MMU SPTEs with volatile bits
KVM: x86/mmu: Move shadow-present check out of spte_has_volatile_bits()
KVM: x86/mmu: Don't treat fully writable SPTEs as volatile (modulo A/D)
* A fix to relocate the DTB early in boot, in cases where the bootloader
doesn't put the DTB in a region that will end up mapped by the kernel.
This manifests as a crash early in boot on a handful of
configurations.
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Merge tag 'riscv-for-linus-5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fix from Palmer Dabbelt:
- A fix to relocate the DTB early in boot, in cases where the
bootloader doesn't put the DTB in a region that will end up
mapped by the kernel.
This manifests as a crash early in boot on a handful of
configurations.
* tag 'riscv-for-linus-5.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: relocate DTB if it's outside memory region
Read stale PTP Tx timestamps from PHY on cleanup.
After running out of Tx timestamps request handlers, hardware (HW) stops
reporting finished requests. Function ice_ptp_tx_tstamp_cleanup() used
to only clean up stale handlers in driver and was leaving the hardware
registers not read. Not reading stale PTP Tx timestamps prevents next
interrupts from arriving and makes timestamping unusable.
Fixes: ea9b847cda ("ice: enable transmit timestamps for E810 devices")
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The iAVF driver uses 3 virtchnl op codes to communicate with the PF
regarding the VF Tx queues:
* VIRTCHNL_OP_CONFIG_VSI_QUEUES configures the hardware and firmware
logic for the Tx queues
* VIRTCHNL_OP_ENABLE_QUEUES configures the queue interrupts
* VIRTCHNL_OP_DISABLE_QUEUES disables the queue interrupts and Tx rings.
There is a bug in the iAVF driver due to the race condition between VF
reset request and shutdown being executed in parallel. This leads to a
break in logic and VIRTCHNL_OP_DISABLE_QUEUES is not being sent.
If this occurs, the PF driver never cleans up the Tx queues. This results
in leaving behind stale Tx queue settings in the hardware and firmware.
The most obvious outcome is that upon the next
VIRTCHNL_OP_CONFIG_VSI_QUEUES, the PF will fail to program the Tx
scheduler node due to a lack of space.
We need to protect ICE driver against such situation.
To fix this, make sure we clear existing stale settings out when
handling VIRTCHNL_OP_CONFIG_VSI_QUEUES. This ensures we remove the
previous settings.
Calling ice_vf_vsi_dis_single_txq should be safe as it will do nothing if
the queue is not configured. The function already handles the case when the
Tx queue is not currently configured and exits with a 0 return in that
case.
Fixes: 7ad15440ac ("ice: Refactor VIRTCHNL_OP_CONFIG_VSI_QUEUES handling")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Function ice_plug_aux_dev() assigns pf->adev field too early prior
aux device initialization and on other side ice_unplug_aux_dev()
starts aux device deinit and at the end assigns NULL to pf->adev.
This is wrong because pf->adev should always be non-NULL only when
aux device is fully initialized and ready. This wrong order causes
a crash when ice_send_event_to_aux() call occurs because that function
depends on non-NULL value of pf->adev and does not assume that
aux device is half-initialized or half-destroyed.
After order correction the race window is tiny but it is still there,
as Leon mentioned and manipulation with pf->adev needs to be protected
by mutex.
Fix (un-)plugging functions so pf->adev field is set after aux device
init and prior aux device destroy and protect pf->adev assignment by
new mutex. This mutex is also held during ice_send_event_to_aux()
call to ensure that aux device is valid during that call.
Note that device lock used ice_send_event_to_aux() needs to be kept
to avoid race with aux drv unload.
Reproducer:
cycle=1
while :;do
echo "#### Cycle: $cycle"
ip link set ens7f0 mtu 9000
ip link add bond0 type bond mode 1 miimon 100
ip link set bond0 up
ifenslave bond0 ens7f0
ip link set bond0 mtu 9000
ethtool -L ens7f0 combined 1
ip link del bond0
ip link set ens7f0 mtu 1500
sleep 1
let cycle++
done
In short when the device is added/removed to/from bond the aux device
is unplugged/plugged. When MTU of the device is changed an event is
sent to aux device asynchronously. This can race with (un)plugging
operation and because pf->adev is set too early (plug) or too late
(unplug) the function ice_send_event_to_aux() can touch uninitialized
or destroyed fields. In the case of crash below pf->adev->dev.mutex.
Crash:
[ 53.372066] bond0: (slave ens7f0): making interface the new active one
[ 53.378622] bond0: (slave ens7f0): Enslaving as an active interface with an u
p link
[ 53.386294] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 53.549104] bond0: (slave ens7f1): Enslaving as a backup interface with an up
link
[ 54.118906] ice 0000:ca:00.0 ens7f0: Number of in use tx queues changed inval
idating tc mappings. Priority traffic classification disabled!
[ 54.233374] ice 0000:ca:00.1 ens7f1: Number of in use tx queues changed inval
idating tc mappings. Priority traffic classification disabled!
[ 54.248204] bond0: (slave ens7f0): Releasing backup interface
[ 54.253955] bond0: (slave ens7f1): making interface the new active one
[ 54.274875] bond0: (slave ens7f1): Releasing backup interface
[ 54.289153] bond0 (unregistering): Released all slaves
[ 55.383179] MII link monitoring set to 100 ms
[ 55.398696] bond0: (slave ens7f0): making interface the new active one
[ 55.405241] BUG: kernel NULL pointer dereference, address: 0000000000000080
[ 55.405289] bond0: (slave ens7f0): Enslaving as an active interface with an u
p link
[ 55.412198] #PF: supervisor write access in kernel mode
[ 55.412200] #PF: error_code(0x0002) - not-present page
[ 55.412201] PGD 25d2ad067 P4D 0
[ 55.412204] Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 55.412207] CPU: 0 PID: 403 Comm: kworker/0:2 Kdump: loaded Tainted: G S
5.17.0-13579-g57f2d6540f03 #1
[ 55.429094] bond0: (slave ens7f1): Enslaving as a backup interface with an up
link
[ 55.430224] Hardware name: Dell Inc. PowerEdge R750/06V45N, BIOS 1.4.4 10/07/
2021
[ 55.430226] Workqueue: ice ice_service_task [ice]
[ 55.468169] RIP: 0010:mutex_unlock+0x10/0x20
[ 55.472439] Code: 0f b1 13 74 96 eb e0 4c 89 ee eb d8 e8 79 54 ff ff 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 65 48 8b 04 25 40 ef 01 00 31 d2 <f0> 48 0f b1 17 75 01 c3 e9 e3 fe ff ff 0f 1f 00 0f 1f 44 00 00 48
[ 55.491186] RSP: 0018:ff4454230d7d7e28 EFLAGS: 00010246
[ 55.496413] RAX: ff1a79b208b08000 RBX: ff1a79b2182e8880 RCX: 0000000000000001
[ 55.503545] RDX: 0000000000000000 RSI: ff4454230d7d7db0 RDI: 0000000000000080
[ 55.510678] RBP: ff1a79d1c7e48b68 R08: ff4454230d7d7db0 R09: 0000000000000041
[ 55.517812] R10: 00000000000000a5 R11: 00000000000006e6 R12: ff1a79d1c7e48bc0
[ 55.524945] R13: 0000000000000000 R14: ff1a79d0ffc305c0 R15: 0000000000000000
[ 55.532076] FS: 0000000000000000(0000) GS:ff1a79d0ffc00000(0000) knlGS:0000000000000000
[ 55.540163] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 55.545908] CR2: 0000000000000080 CR3: 00000003487ae003 CR4: 0000000000771ef0
[ 55.553041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 55.560173] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 55.567305] PKRU: 55555554
[ 55.570018] Call Trace:
[ 55.572474] <TASK>
[ 55.574579] ice_service_task+0xaab/0xef0 [ice]
[ 55.579130] process_one_work+0x1c5/0x390
[ 55.583141] ? process_one_work+0x390/0x390
[ 55.587326] worker_thread+0x30/0x360
[ 55.590994] ? process_one_work+0x390/0x390
[ 55.595180] kthread+0xe6/0x110
[ 55.598325] ? kthread_complete_and_exit+0x20/0x20
[ 55.603116] ret_from_fork+0x1f/0x30
[ 55.606698] </TASK>
Fixes: f9f5301e7e ("ice: Register auxiliary device to provide RDMA")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Exit to userspace with an emulation error if KVM encounters an injected
exception with invalid guest state, in addition to the existing check of
bailing if there's a pending exception (KVM doesn't support emulating
exceptions except when emulating real mode via vm86).
In theory, KVM should never get to such a situation as KVM is supposed to
exit to userspace before injecting an exception with invalid guest state.
But in practice, userspace can intervene and manually inject an exception
and/or stuff registers to force invalid guest state while a previously
injected exception is awaiting reinjection.
Fixes: fc4fad79fc ("KVM: VMX: Reject KVM_RUN if emulation is required with pending exception")
Reported-by: syzbot+cfafed3bb76d3e37581b@syzkaller.appspotmail.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220502221850.131873-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
svm_vm_migrate_from() uses sev_lock_vcpus_for_migration() to lock all
source and target vcpu->locks. Unfortunately there is an 8 subclass
limit, so a new subclass cannot be used for each vCPU. Instead maintain
ownership of the first vcpu's mutex.dep_map using a role specific
subclass: source vs target. Release the other vcpu's mutex.dep_maps.
Fixes: b56639318b ("KVM: SEV: Add support for SEV intra host migration")
Reported-by: John Sperbeck<jsperbeck@google.com>
Suggested-by: David Rientjes <rientjes@google.com>
Suggested-by: Sean Christopherson <seanjc@google.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Hillf Danton <hdanton@sina.com>
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Peter Gonda <pgonda@google.com>
Message-Id: <20220502165807.529624-1-pgonda@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A few recent regressions in rxe's multicast code, and some old driver
bugs:
- Error case unwind bug in rxe for rkeys
- Dot not call netdev functions under a spinlock in rxe multicast code
- Use the proper BH lock type in rxe multicast code
- Fix idrma deadlock and crash
- Add a missing flush to drain irdma QPs when in error
- Fix high userspace latency in irdma during destroy due to
synchronize_rcu()
- Rare race in siw MPA processing
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"A few recent regressions in rxe's multicast code, and some old driver
bugs:
- Error case unwind bug in rxe for rkeys
- Dot not call netdev functions under a spinlock in rxe multicast
code
- Use the proper BH lock type in rxe multicast code
- Fix idrma deadlock and crash
- Add a missing flush to drain irdma QPs when in error
- Fix high userspace latency in irdma during destroy due to
synchronize_rcu()
- Rare race in siw MPA processing"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/rxe: Change mcg_lock to a _bh lock
RDMA/rxe: Do not call dev_mc_add/del() under a spinlock
RDMA/siw: Fix a condition race issue in MPA request processing
RDMA/irdma: Fix possible crash due to NULL netdev in notifier
RDMA/irdma: Reduce iWARP QP destroy time
RDMA/irdma: Flush iWARP QP if modified to ERR from RTR state
RDMA/rxe: Recheck the MR in when generating a READ reply
RDMA/irdma: Fix deadlock in irdma_cleanup_cm_core()
RDMA/rxe: Fix "Replace mr by rkey in responder resources"
Karol Herbst