If the user tries to attach an event probe (eprobe) to an event that does
not exist, it will trigger a warning. There's an error check that only
expects memory issues otherwise it is considered a bug. But changes in the
code to move around the locking made it that it can error out if the user
attempts to attach to an event that does not exist, returning an -ENODEV.
As this path can be caused by user space putting in a bad value, do not
trigger a WARN.
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Merge tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Do not WARN when attaching event probe to non-existent event
If the user tries to attach an event probe (eprobe) to an event that
does not exist, it will trigger a warning. There's an error check that
only expects memory issues otherwise it is considered a bug. But
changes in the code to move around the locking made it that it can
error out if the user attempts to attach to an event that does not
exist, returning an -ENODEV. As this path can be caused by user space
putting in a bad value, do not trigger a WARN"
* tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not warn when connecting eprobe to non existing event
When the syscall trace points are not configured in, the kselftests for
ftrace will try to attach an event probe (eprobe) to one of the system
call trace points. This triggered a WARNING, because the failure only
expects to see memory issues. But this is not the only failure. The user
may attempt to attach to a non existent event, and the kernel must not
warn about it.
Link: https://lkml.kernel.org/r/20211027120854.0680aa0f@gandalf.local.home
Fixes: 7491e2c442 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
A couple of fixes that seem important enough to pick at the last moment.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"A couple of fixes that seem important enough to pick at the last
moment"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio-ring: fix DMA metadata flags
vduse: Fix race condition between resetting and irq injecting
vduse: Disallow injecting interrupt before DRIVER_OK is set
The flags are currently overwritten, leading to the wrong direction
being passed to the DMA unmap functions.
Fixes: 72b5e89587 ("virtio-ring: store DMA metadata in desc_extra for split virtqueue")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20211026133100.17541-1-vincent.whitchurch@axis.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
A randconfig found that nds32le architecture fails to build due
to a prototype mismatch between a ftrace function pointer and
the function it was to be assigned to. That function pointer prototype
missed being updated when all the ftrace callbacks were updated.
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Merge tag 'trace-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull nds32 tracing fix from Steven Rostedt:
"Fix nds32le build when DYNAMIC_FTRACE is disabled
A randconfig found that nds32le architecture fails to build due to a
prototype mismatch between a ftrace function pointer and the function
it was to be assigned to. That function pointer prototype missed being
updated when all the ftrace callbacks were updated"
* tag 'trace-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace/nds32: Update the proto for ftrace_trace_function to match ftrace_stub
- Fix a build error for allmodconfig
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Merge tag 'nios2_fixes_for_v5.15_part3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
Pull nios2 fix from Dinh Nguyen:
"Fix a build error for allmodconfig"
* tag 'nios2_fixes_for_v5.15_part3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
Usual collection of small bug fixes:
- irdma issues with CQ entries, VLAN completions and a mutex deadlock
- Incorrect DCT packets in mlx5
- Userspace triggered overflows in qib
- Locking error in hfi
- Typo in errno value in qib/hfi1
- Double free in qedr
- Leak of random kernel memory to userspace with a netlink callback
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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:
"Nothing very exciting here, it has been a quiet cycle overall. Usual
collection of small bug fixes:
- irdma issues with CQ entries, VLAN completions and a mutex deadlock
- Incorrect DCT packets in mlx5
- Userspace triggered overflows in qib
- Locking error in hfi
- Typo in errno value in qib/hfi1
- Double free in qedr
- Leak of random kernel memory to userspace with a netlink callback"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/sa_query: Use strscpy_pad instead of memcpy to copy a string
RDMA/irdma: Do not hold qos mutex twice on QP resume
RDMA/irdma: Set VLAN in UD work completion correctly
RDMA/mlx5: Initialize the ODP xarray when creating an ODP MR
rdma/qedr: Fix crash due to redundant release of device's qp memory
RDMA/rdmavt: Fix error code in rvt_create_qp()
IB/hfi1: Fix abba locking issue with sc_disable()
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
RDMA/mlx5: Set user priority for DCT
RDMA/irdma: Process extended CQ entries correctly
The ftrace callback prototype was changed to pass a special ftrace_regs
instead of pt_regs as the last parameter, but the static ftrace for nds32
missed updating ftrace_trace_function and this caused a warning when
compared to ftrace_stub:
../arch/nds32/kernel/ftrace.c: In function '_mcount':
../arch/nds32/kernel/ftrace.c:24:35: error: comparison of distinct pointer types lacks a cast [-Werror]
24 | if (ftrace_trace_function != ftrace_stub)
| ^~
Link: https://lore.kernel.org/all/20211027055554.19372-1-rdunlap@infradead.org/
Link: https://lkml.kernel.org/r/20211027125101.33449969@gandalf.local.home
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Fixes: d19ad0775d ("ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
nios2:allmodconfig builds fail with
make[1]: *** No rule to make target 'arch/nios2/boot/dts/""',
needed by 'arch/nios2/boot/dts/built-in.a'. Stop.
make: [Makefile:1868: arch/nios2/boot/dts] Error 2 (ignored)
This is seen with compile tests since those enable NIOS2_DTB_SOURCE_BOOL,
which in turn enables NIOS2_DTB_SOURCE. This causes the build error
because the default value for NIOS2_DTB_SOURCE is an empty string.
Disable NIOS2_DTB_SOURCE_BOOL for compile tests to avoid the error.
Fixes: 2fc8483fdc ("nios2: Build infrastructure")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
One last set of small fixes for the soc tree:
- Incorrect ethernet phy settings found on i.mx and
allwinner platforms
- a revert for a Qualcomm DT change that caused a boot
regression
- four patches for incorrect settings in i.MX DT files
- new MAINTAINER file entries for dhcom boards
- a Kconfig fix for a reset driver that became unselectable
- three more code changes for bugs in reset drivers
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Merge tag 'arm-soc-fixes-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"One last set of small fixes for the soc tree:
- Incorrect ethernet phy settings found on i.mx and allwinner
platforms
- a revert for a Qualcomm DT change that caused a boot regression
- four patches for incorrect settings in i.MX DT files
- new MAINTAINER file entries for dhcom boards
- a Kconfig fix for a reset driver that became unselectable
- three more code changes for bugs in reset drivers"
* tag 'arm-soc-fixes-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: Add maintainers for DHCOM i.MX6 and DHCOM/DHCOR STM32MP1
Revert "arm64: dts: qcom: sm8250: remove bus clock from the mdss node for sm8250 target"
arm64: dts: imx8mm-kontron: Fix connection type for VSC8531 RGMII PHY
arm64: dts: imx8mm-kontron: Fix CAN SPI clock frequency
arm64: dts: imx8mm-kontron: Fix polarity of reg_rst_eth2
arm64: dts: imx8mm-kontron: Set lower limit of VDD_SNVS to 800 mV
arm64: dts: imx8mm-kontron: Make sure SOC and DRAM supply voltages are correct
reset: socfpga: add empty driver allowing consumers to probe
reset: tegra-bpmp: Handle errors in BPMP response
reset: pistachio: Re-enable driver selection
reset: brcmstb-rescal: fix incorrect polarity of status bit
ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode
arm64: dts: allwinner: h5: NanoPI Neo 2: Fix ethernet node
This reverts a clock change in the Qualcomm RB5 devicetree which in some
combinations of firmware and configuration causes the device to crash
during boot.
Data on an adjacent platform indicates that this is probably not be the
root cause of the problem, but this resolves the regression seen on RB5
and will allow the SM8250 platform to boot v5.15.
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Merge tag 'qcom-arm64-fixes-for-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes
Qualcomm ARM64 DTS one more fix for 5.15
This reverts a clock change in the Qualcomm RB5 devicetree which in some
combinations of firmware and configuration causes the device to crash
during boot.
Data on an adjacent platform indicates that this is probably not be the
root cause of the problem, but this resolves the regression seen on RB5
and will allow the SM8250 platform to boot v5.15.
* tag 'qcom-arm64-fixes-for-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
Revert "arm64: dts: qcom: sm8250: remove bus clock from the mdss node for sm8250 target"
Link: https://lore.kernel.org/r/20211025201213.1145348-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This reverts commit 001ce9785c.
This upstream commit broke AOSP (post Android 12 merge) build
on RB5. The device either silently crashes into USB crash mode
after android boot animation or we see a blank blue screen
with following dpu errors in dmesg:
[ T444] hw recovery is not complete for ctl:3
[ T444] [drm:dpu_encoder_phys_vid_prepare_for_kickoff:539] [dpu error]enc31 intf1 ctl 3 reset failure: -22
[ T444] [drm:dpu_encoder_phys_vid_wait_for_commit_done:513] [dpu error]vblank timeout
[ T444] [drm:dpu_kms_wait_for_commit_done:454] [dpu error]wait for commit done returned -110
[ C7] [drm:dpu_encoder_frame_done_timeout:2127] [dpu error]enc31 frame done timeout
[ T444] [drm:dpu_encoder_phys_vid_wait_for_commit_done:513] [dpu error]vblank timeout
[ T444] [drm:dpu_kms_wait_for_commit_done:454] [dpu error]wait for commit done returned -110
Fixes: 001ce9785c ("arm64: dts: qcom: sm8250: remove bus clock from the mdss node for sm8250 target")
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211014135410.4136412-1-dmitry.baryshkov@linaro.org
Commit 110860541f ("mm/secretmem: use refcount_t instead of atomic_t")
attempted to fix the problem of secretmem_users wrapping to zero and
allowing suspend once again.
But it was reverted in commit 87066fdd2e ("Revert 'mm/secretmem: use
refcount_t instead of atomic_t'") because of the problems it caused - a
refcount_t was not semantically the right type to use.
Instead prevent secretmem_users from wrapping to zero by forbidding new
users if the number of users has wrapped from positive to negative.
This stops a long way short of reaching the necessary 4 billion users
where it wraps to zero again, so there's no need to be clever with
special anti-wrap types or checking the return value from atomic_inc().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Jordy Zomer <jordy@pwning.systems>
Cc: Kees Cook <keescook@chromium.org>,
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit efafec27c5 ("spi: Fix tegra20 build with CONFIG_PM=n") already
fixed the build without PM support once. There was an alternative fix
by Guenter in commit 2bab94090b ("spi: tegra20-slink: Declare runtime
suspend and resume functions conditionally"), and Mark then merged the
two correctly in ffb1e76f4f ("Merge tag 'v5.15-rc2' into spi-5.15").
But for some inexplicable reason, Mark then merged things _again_ in
commit 59c4e190b1 ("Merge tag 'v5.15-rc3' into spi-5.15"), and screwed
things up at that point, and the __maybe_unused attribute on
tegra_slink_runtime_resume() went missing.
Reinstate it, so that alpha (and other architectures without PM support)
builds cleanly again.
Btw, this is another prime example of how random back-merges are not
good. Just don't do them. Subsystem developers should not merge my
tree in any normal circumstances. Both of those merge commits pointed
to above are bad: even the one that got the merge result right doesn't
even mention _why_ it was done, and the one that got it wrong is
obviously broken.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix clang-related relocation warning in futex code
- Fix incorrect use of get_kernel_nofault()
- Fix bad code generation in __get_user_check() when kasan is enabled
- Ensure TLB function table is correctly aligned
- Remove duplicated string function definitions in decompressor
- Fix link-time orphan section warnings
- Fix old-style function prototype for arch_init_kprobes()
- Only warn about XIP address when not compile testing
- Handle BE32 big endian for keystone2 remapping
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- Fix clang-related relocation warning in futex code
- Fix incorrect use of get_kernel_nofault()
- Fix bad code generation in __get_user_check() when kasan is enabled
- Ensure TLB function table is correctly aligned
- Remove duplicated string function definitions in decompressor
- Fix link-time orphan section warnings
- Fix old-style function prototype for arch_init_kprobes()
- Only warn about XIP address when not compile testing
- Handle BE32 big endian for keystone2 remapping
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9148/1: handle CONFIG_CPU_ENDIAN_BE32 in arch/arm/kernel/head.S
ARM: 9141/1: only warn about XIP address when not compile testing
ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype
ARM: 9138/1: fix link warning with XIP + frame-pointer
ARM: 9134/1: remove duplicate memcpy() definition
ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned
ARM: 9132/1: Fix __get_user_check failure with ARM KASAN images
ARM: 9125/1: fix incorrect use of get_kernel_nofault()
ARM: 9122/1: select HAVE_FUTEX_CMPXCHG
A single fix in this pull request addressing an invalid error code
return in the sata_mv driver (from Zheyu).
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Merge tag 'libata-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fix from Damien Le Moal:
"A single fix in this pull request addressing an invalid error code
return in the sata_mv driver (from Zheyu)"
* tag 'libata-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: sata_mv: Fix the error handling of mv_chip_id()
- Three fixes pertaining to Broadcom DT bindings. Some stuff
didn't work out as inteded, we need to back out.
- A resume bug fix in the STM32 driver.
- Disable and mask the interrupts on probe in the AMD pinctrl
driver, affecting Microsoft surface.
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Merge tag 'pinctrl-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some late pin control fixes, the most generally annoying will probably
be the AMD IRQ storm fix affecting the Microsoft surface.
Summary:
- Three fixes pertaining to Broadcom DT bindings. Some stuff didn't
work out as inteded, we need to back out
- A resume bug fix in the STM32 driver
- Disable and mask the interrupts on probe in the AMD pinctrl driver,
affecting Microsoft surface"
* tag 'pinctrl-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: amd: disable and mask interrupts on probe
pinctrl: stm32: use valid pin identifier in stm32_pinctrl_resume()
Revert "pinctrl: bcm: ns: support updated DT binding as syscon subnode"
dt-bindings: pinctrl: brcm,ns-pinmux: drop unneeded CRU from example
Revert "dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon"
My intel-ixp42x-welltech-epbx100 no longer boot since 4.14.
This is due to commit 463dbba4d1 ("ARM: 9104/2: Fix Keystone 2 kernel
mapping regression")
which forgot to handle CONFIG_CPU_ENDIAN_BE32 as possible BE config.
Suggested-by: Krzysztof Hałasa <khalasa@piap.pl>
Fixes: 463dbba4d1 ("ARM: 9104/2: Fix Keystone 2 kernel mapping regression")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
mv_init_host() propagates the value returned by mv_chip_id() which in turn
gets propagated by mv_pci_init_one() and hits local_pci_probe().
During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.
Since this is a bug rather than a recoverable runtime error we should
use dev_alert() instead of dev_err().
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This reverts commit 110860541f.
Converting the "secretmem_users" counter to a refcount is incorrect,
because a refcount is special in zero and can't just be incremented (but
a count of users is not, and "no users" is actually perfectly valid and
not a sign of a free'd resource).
Reported-by: syzbot+75639e6a0331cd61d3e2@syzkaller.appspotmail.com
Cc: Jordy Zomer <jordy@pwning.systems>
Cc: Kees Cook <keescook@chromium.org>,
Cc: Jordy Zomer <jordy@jordyzomer.github.io>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull autofs fix from Al Viro:
"Fix for a braino of mine (in getting rid of open-coded
dentry_path_raw() in autofs a couple of cycles ago).
Mea culpa... Obvious -stable fodder"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
autofs: fix wait name hash calculation in autofs_wait()
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Merge tag 'sched_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
"Reset clang's Shadow Call Stack on hotplug to prevent it from
overflowing"
* tag 'sched_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/scs: Reset the shadow stack when idle_task_exit
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Merge tag 'x86_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"A single change adding Dave Hansen to our maintainers team"
* tag 'x86_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Dave Hansen to the x86 maintainer team
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Merge tag '5.15-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd
Pull ksmbd fixes from Steve French:
"Ten fixes for the ksmbd kernel server, for improved security and
additional buffer overflow checks:
- a security improvement to session establishment to reduce the
possibility of dictionary attacks
- fix to ensure that maximum i/o size negotiated in the protocol is
not less than 64K and not more than 8MB to better match expected
behavior
- fix for crediting (flow control) important to properly verify that
sufficient credits are available for the requested operation
- seven additional buffer overflow, buffer validation checks"
* tag '5.15-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd:
ksmbd: add buffer validation in session setup
ksmbd: throttle session setup failures to avoid dictionary attacks
ksmbd: validate OutputBufferLength of QUERY_DIR, QUERY_INFO, IOCTL requests
ksmbd: validate credit charge after validating SMB2 PDU body size
ksmbd: add buffer validation for smb direct
ksmbd: limit read/write/trans buffer size not to exceed 8MB
ksmbd: validate compound response buffer
ksmbd: fix potencial 32bit overflow from data area check in smb2_write
ksmbd: improve credits management
ksmbd: add validation in smb2_ioctl
Ten fixes, seven of which are in drivers. The core fixes are one to
fix a potential crash on resume, one to sort out our reference count
releases to avoid releasing in-use modules and one to adjust the cmd
per lun calculation to avoid an overflow in hyper-v.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Ten fixes, seven of which are in drivers.
The core fixes are one to fix a potential crash on resume, one to sort
out our reference count releases to avoid releasing in-use modules and
one to adjust the cmd per lun calculation to avoid an overflow in
hyper-v"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: ufs-pci: Force a full restore after suspend-to-disk
scsi: qla2xxx: Fix unmap of already freed sgl
scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()
scsi: qla2xxx: Return -ENOMEM if kzalloc() fails
scsi: sd: Fix crashes in sd_resume_runtime()
scsi: mpi3mr: Fix duplicate device entries when scanning through sysfs
scsi: core: Put LLD module refcnt after SCSI device is released
scsi: storvsc: Fix validation for unsolicited incoming packets
scsi: iscsi: Fix set_param() handling
scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma()
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Merge tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Fix for the cgroup code not ussing irq safe stats updates, and one fix
for an error handling condition in add_partition()"
* tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block:
block: fix incorrect references to disk objects
blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu
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Merge tag 'io_uring-5.15-2021-10-22' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two fixes for the max workers limit API that was introduced this
series: one fix for an issue with that code, and one fixing a linked
timeout regression in this series"
* tag 'io_uring-5.15-2021-10-22' of git://git.kernel.dk/linux-block:
io_uring: apply worker limits to previous users
io_uring: fix ltimeout unprep
io_uring: apply max_workers limit to all future users
io-wq: max_worker fixes
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Merge tag 'fuse-fixes-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"Syzbot discovered a race in case of reusing the fuse sb (introduced in
this cycle).
Fix it by doing the s_fs_info initialization at the proper place"
* tag 'fuse-fixes-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: clean up error exits in fuse_fill_super()
fuse: always initialize sb->s_fs_info
fuse: clean up fuse_mount destruction
fuse: get rid of fuse_put_super()
fuse: check s_root when destroying sb
On arm64 randconfig builds, hyperv sometimes fails with this
error:
In file included from drivers/hv/hv_trace.c:3:
In file included from drivers/hv/hyperv_vmbus.h:16:
In file included from arch/arm64/include/asm/sync_bitops.h:5:
arch/arm64/include/asm/bitops.h:11:2: error: only <linux/bitops.h> can be included directly
In file included from include/asm-generic/bitops/hweight.h:5:
include/asm-generic/bitops/arch_hweight.h:9:9: error: implicit declaration of function '__sw_hweight32' [-Werror,-Wimplicit-function-declaration]
include/asm-generic/bitops/atomic.h:17:7: error: implicit declaration of function 'BIT_WORD' [-Werror,-Wimplicit-function-declaration]
Include the correct header first.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211018131929.2260087-1-arnd@kernel.org
Signed-off-by: Wei Liu <wei.liu@kernel.org>
- Stop turning off unused ACPI power resources in an unknown state
to address a regression introduced during the 5.14 cycle (Rafael
Wysocki).
- Fix an ACPI tools build issue introduced recently when the minimal
stdarg.h was added (Miguel Bernal Marin).
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Merge tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two regressions, one related to ACPI power resources
management and one that broke ACPI tools compilation.
Specifics:
- Stop turning off unused ACPI power resources in an unknown state to
address a regression introduced during the 5.14 cycle (Rafael
Wysocki).
- Fix an ACPI tools build issue introduced recently when the minimal
stdarg.h was added (Miguel Bernal Marin)"
* tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Do not turn off power resources in unknown state
ACPI: tools: fix compilation error
* Fix for instruction emulation with PKU
* fixes for rare delaying of interrupt delivery
* fix for SEV-ES buffer overflow
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more x86 kvm fixes from Paolo Bonzini:
- Cache coherency fix for SEV live migration
- Fix for instruction emulation with PKU
- fixes for rare delaying of interrupt delivery
- fix for SEV-ES buffer overflow
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SEV-ES: go over the sev_pio_data buffer in multiple passes if needed
KVM: SEV-ES: keep INS functions together
KVM: x86: remove unnecessary arguments from complete_emulator_pio_in
KVM: x86: split the two parts of emulator_pio_in
KVM: SEV-ES: clean up kvm_sev_es_ins/outs
KVM: x86: leave vcpu->arch.pio.count alone in emulator_pio_in_out
KVM: SEV-ES: rename guest_ins_data to sev_pio_data
KVM: SEV: Flush cache on non-coherent systems before RECEIVE_UPDATE_DATA
KVM: MMU: Reset mmu->pkru_mask to avoid stale data
KVM: nVMX: promptly process interrupts delivered while in guest mode
KVM: x86: check for interrupts before deciding whether to exit the fast path
The PIO scratch buffer is larger than a single page, and therefore
it is not possible to copy it in a single step to vcpu->arch/pio_data.
Bound each call to emulator_pio_in/out to a single page; keep
track of how many I/O operations are left in vcpu->arch.sev_pio_count,
so that the operation can be restarted in the complete_userspace_io
callback.
For OUT, this means that the previous kvm_sev_es_outs implementation
becomes an iterator of the loop, and we can consume the sev_pio_data
buffer before leaving to userspace.
For IN, instead, consuming the buffer and decreasing sev_pio_count
is always done in the complete_userspace_io callback, because that
is when the memcpy is done into sev_pio_data.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reported-by: Felix Wilhelm <fwilhelm@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Make the diff a little nicer when we actually get to fixing
the bug. No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
complete_emulator_pio_in can expect that vcpu->arch.pio has been filled in,
and therefore does not need the size and count arguments. This makes things
nicer when the function is called directly from a complete_userspace_io
callback.
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
emulator_pio_in handles both the case where the data is pending in
vcpu->arch.pio.count, and the case where I/O has to be done via either
an in-kernel device or a userspace exit. For SEV-ES we would like
to split these, to identify clearly the moment at which the
sev_pio_data is consumed. To this end, create two different
functions: __emulator_pio_in fills in vcpu->arch.pio.count, while
complete_emulator_pio_in clears it and releases vcpu->arch.pio.data.
Because this patch has to be backported, things are left a bit messy.
kernel_pio() operates on vcpu->arch.pio, which leads to emulator_pio_in()
having with two calls to complete_emulator_pio_in(). It will be fixed
in the next release.
While at it, remove the unused void* val argument of emulator_pio_in_out.
The function currently hardcodes vcpu->arch.pio_data as the
source/destination buffer, which sucks but will be fixed after the more
severe SEV-ES buffer overflow.
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A few very small cleanups to the functions, smushed together because
the patch is already very small like this:
- inline emulator_pio_in_emulated and emulator_pio_out_emulated,
since we already have the vCPU
- remove the data argument and pull setting vcpu->arch.sev_pio_data into
the caller
- remove unnecessary clearing of vcpu->arch.pio.count when
emulation is done by the kernel (and therefore vcpu->arch.pio.count
is already clear on exit from emulator_pio_in and emulator_pio_out).
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently emulator_pio_in clears vcpu->arch.pio.count twice if
emulator_pio_in_out performs kernel PIO. Move the clear into
emulator_pio_out where it is actually necessary.
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We will be using this field for OUTS emulation as well, in case the
data that is pushed via OUTS spans more than one page. In that case,
there will be a need to save the data pointer across exits to userspace.
So, change the name to something that refers to any kind of PIO.
Also spell out what it is used for, namely SEV-ES.
No functional change intended.
Cc: stable@vger.kernel.org
Fixes: 7ed9abfe8e ("KVM: SVM: Support string IO operations for an SEV-ES guest")
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The interrupt might be triggered after a reset since there is
no synchronization between resetting and irq injecting. And it
might break something if the interrupt is delayed until a new
round of device initialization.
Fixes: c8a6153b6c ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20210929083050.88-1-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The interrupt callback should not be triggered before DRIVER_OK
is set. Otherwise, it might break the virtio device driver.
So let's add a check to avoid the unexpected behavior.
Fixes: c8a6153b6c ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20210923075722.98-1-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
ast:
- fix regression with connector detect
msm:
- fix power stability issue
msxfb:
- fix crash on unload
panel:
- sync fix
kmb:
- modesetting fixes
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Merge tag 'drm-fixes-2021-10-22' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Nothing too crazy at the end of the cycle, the kmb modesetting fixes
are probably a bit large but it's not a major driver, and its fixing
monitor doesn't turn on type problems.
Otherwise it's just a few minor patches, one ast regression revert, an
msm power stability fix.
ast:
- fix regression with connector detect
msm:
- fix power stability issue
msxfb:
- fix crash on unload
panel:
- sync fix
kmb:
- modesetting fixes"
* tag 'drm-fixes-2021-10-22' of git://anongit.freedesktop.org/drm/drm:
Revert "drm/ast: Add detect function support"
drm/kmb: Enable ADV bridge after modeset
drm/kmb: Corrected typo in handle_lcd_irq
drm/kmb: Disable change of plane parameters
drm/kmb: Remove clearing DPHY regs
drm/kmb: Limit supported mode to 1080p
drm/kmb: Work around for higher system clock
drm/panel: ilitek-ili9881c: Fix sync for Feixin K101-IM2BYL02 panel
drm: mxsfb: Fix NULL pointer dereference crash on unload
drm/msm/devfreq: Restrict idle clamping to a618 for now
Vladimir Zapolskiy reports:
Commit a7259df767 ("memblock: make memblock_find_in_range method
private") invokes a kernel panic while running kmemleak on OF platforms
with nomaped regions:
Unable to handle kernel paging request at virtual address fff000021e00000
[...]
scan_block+0x64/0x170
scan_gray_list+0xe8/0x17c
kmemleak_scan+0x270/0x514
kmemleak_write+0x34c/0x4ac
The memory allocated from memblock is registered with kmemleak, but if
it is marked MEMBLOCK_NOMAP it won't have linear map entries so an
attempt to scan such areas will fault.
Ideally, memblock_mark_nomap() would inform kmemleak to ignore
MEMBLOCK_NOMAP memory, but it can be called before kmemleak interfaces
operating on physical addresses can use __va() conversion.
Make sure that functions that mark allocated memory as MEMBLOCK_NOMAP
take care of informing kmemleak to ignore such memory.
Link: https://lore.kernel.org/all/8ade5174-b143-d621-8c8e-dc6a1898c6fb@linaro.org
Link: https://lore.kernel.org/all/c30ff0a2-d196-c50d-22f0-bd50696b1205@quicinc.com
Fixes: a7259df767 ("memblock: make memblock_find_in_range method private")
Reported-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Tested-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull ucounts fixes from Eric Biederman:
"There has been one very hard to track down bug in the ucount code that
we have been tracking since roughly v5.14 was released. Alex managed
to find a reliable reproducer a few days ago and then I was able to
instrument the code and figure out what the issue was.
It turns out the sigqueue_alloc single atomic operation optimization
did not play nicely with ucounts multiple level rlimits. It turned out
that either sigqueue_alloc or sigqueue_free could be operating on
multiple levels and trigger the conditions for the optimization on
more than one level at the same time.
To deal with that situation I have introduced inc_rlimit_get_ucounts
and dec_rlimit_put_ucounts that just focuses on the optimization and
the rlimit and ucount changes.
While looking into the big bug I found I couple of other little issues
so I am including those fixes here as well.
When I have time I would very much like to dig into process ownership
of the shared signal queue and see if we could pick a single owner for
the entire queue so that all of the rlimits can count to that owner.
That should entirely remove the need to call get_ucounts and
put_ucounts in sigqueue_alloc and sigqueue_free. It is difficult
because Linux unlike POSIX supports setuid that works on a single
thread"
* 'ucount-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
ucounts: Move get_ucounts from cred_alloc_blank to key_change_session_keyring
ucounts: Proper error handling in set_cred_ucounts
ucounts: Pair inc_rlimit_ucounts with dec_rlimit_ucoutns in commit_creds
ucounts: Fix signal ucount refcounting
Current release - regressions:
- revert "vrf: reset skb conntrack connection on VRF rcv",
there are valid uses for previous behavior
- can: m_can: fix iomap_read_fifo() and iomap_write_fifo()
Current release - new code bugs:
- mlx5: e-switch, return correct error code on group creation failure
Previous releases - regressions:
- sctp: fix transport encap_port update in sctp_vtag_verify
- stmmac: fix E2E delay mechanism (in PTP timestamping)
Previous releases - always broken:
- netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr
- netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of init
- netfilter: ipvs: make global sysctl read-only in non-init netns
- tcp: md5: fix selection between vrf and non-vrf keys
- ipv6: count rx stats on the orig netdev when forwarding
- bridge: mcast: use multicast_membership_interval for IGMPv3
- can:
- j1939: fix UAF for rx_kref of j1939_priv
abort sessions on receiving bad messages
- isotp: fix TX buffer concurrent access in isotp_sendmsg()
fix return error on FC timeout on TX path
- ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited
- hns3: schedule the polling again when allocation fails,
prevent stalls
- drivers: add missing of_node_put() when aborting
for_each_available_child_of_node()
- ptp: fix possible memory leak and UAF in ptp_clock_register()
- e1000e: fix packet loss in burst mode on Tiger Lake and later
- mlx5e: ipsec: fix more checksum offload issues
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and can.
We'll have one more fix for a socket accounting regression, it's still
getting polished. Otherwise things look fine.
Current release - regressions:
- revert "vrf: reset skb conntrack connection on VRF rcv", there are
valid uses for previous behavior
- can: m_can: fix iomap_read_fifo() and iomap_write_fifo()
Current release - new code bugs:
- mlx5: e-switch, return correct error code on group creation failure
Previous releases - regressions:
- sctp: fix transport encap_port update in sctp_vtag_verify
- stmmac: fix E2E delay mechanism (in PTP timestamping)
Previous releases - always broken:
- netfilter: ip6t_rt: fix out-of-bounds read of ipv6_rt_hdr
- netfilter: xt_IDLETIMER: fix out-of-bound read caused by lack of
init
- netfilter: ipvs: make global sysctl read-only in non-init netns
- tcp: md5: fix selection between vrf and non-vrf keys
- ipv6: count rx stats on the orig netdev when forwarding
- bridge: mcast: use multicast_membership_interval for IGMPv3
- can:
- j1939: fix UAF for rx_kref of j1939_priv abort sessions on
receiving bad messages
- isotp: fix TX buffer concurrent access in isotp_sendmsg() fix
return error on FC timeout on TX path
- ice: fix re-init of RDMA Tx queues and crash if RDMA was not inited
- hns3: schedule the polling again when allocation fails, prevent
stalls
- drivers: add missing of_node_put() when aborting
for_each_available_child_of_node()
- ptp: fix possible memory leak and UAF in ptp_clock_register()
- e1000e: fix packet loss in burst mode on Tiger Lake and later
- mlx5e: ipsec: fix more checksum offload issues"
* tag 'net-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits)
usbnet: sanity check for maxpacket
net: enetc: make sure all traffic classes can send large frames
net: enetc: fix ethtool counter name for PM0_TERR
ptp: free 'vclock_index' in ptp_clock_release()
sfc: Don't use netif_info before net_device setup
sfc: Export fibre-specific supported link modes
net/mlx5e: IPsec: Fix work queue entry ethernet segment checksum flags
net/mlx5e: IPsec: Fix a misuse of the software parser's fields
net/mlx5e: Fix vlan data lost during suspend flow
net/mlx5: E-switch, Return correct error code on group creation failure
net/mlx5: Lag, change multipath and bonding to be mutually exclusive
ice: Add missing E810 device ids
igc: Update I226_K device ID
e1000e: Fix packet loss on Tiger Lake and later
e1000e: Separate TGP board type from SPT
ptp: Fix possible memory leak in ptp_clock_register()
net: stmmac: Fix E2E delay mechanism
nfc: st95hf: Make spi remove() callback return zero
net: hns3: disable sriov before unload hclge layer
net: hns3: fix vf reset workqueue cannot exit
...
