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Merge tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- fix a regression in nowait + buffered write
- in zoned mode fix endianness when comparing super block generation
- locking and lockdep fixes:
- fix potential sleeping under spinlock when setting qgroup limit
- lockdep warning fixes when btrfs_path is freed after copy_to_user
- do not modify log tree while holding a leaf from fs tree locked
- fix freeing of sysfs files of static features on error
- use kv.alloc for zone map allocation as a fallback to avoid warnings
due to high order allocation
- send, avoid unaligned encoded writes when attempting to clone range
* tag 'for-6.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: sysfs: normalize the error handling branch in btrfs_init_sysfs()
btrfs: do not modify log tree while holding a leaf from fs tree locked
btrfs: use kvcalloc in btrfs_get_dev_zone_info
btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
btrfs: send: avoid unaligned encoded writes when attempting to clone range
btrfs: zoned: fix missing endianness conversion in sb_write_pointer
btrfs: free btrfs_path before copying subvol info to userspace
btrfs: free btrfs_path before copying fspath to userspace
btrfs: free btrfs_path before copying inodes to userspace
btrfs: free btrfs_path before copying root refs to userspace
btrfs: fix assertion failure and blocking during nowait buffered write
- Revert a recent schedutil cpufreq governor change that introduced
a performace regression on Pixel 6 (Sam Wu).
- Fix amd-pstate driver initialization after running the kernel via
kexec (Wyes Karny).
- Turn amd-pstate into a built-in driver which allows it to take
precedence over acpi-cpufreq by default on supported systems and
amend it with a mechanism to disable this behavior (Perry Yuan).
- Update amd-pstate documentation in accordance with the other changes
made to it (Perry Yuan).
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Merge tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These revert a recent change in the schedutil cpufreq governor that
had not been expected to make any functional difference, but turned
out to introduce a performance regression, fix an initialization issue
in the amd-pstate driver and make it actually replace the venerable
ACPI cpufreq driver on the supported systems by default.
Specifics:
- Revert a recent schedutil cpufreq governor change that introduced a
performace regression on Pixel 6 (Sam Wu)
- Fix amd-pstate driver initialization after running the kernel via
kexec (Wyes Karny)
- Turn amd-pstate into a built-in driver which allows it to take
precedence over acpi-cpufreq by default on supported systems and
amend it with a mechanism to disable this behavior (Perry Yuan)
- Update amd-pstate documentation in accordance with the other
changes made to it (Perry Yuan)"
* tag 'pm-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation: add amd-pstate kernel command line options
Documentation: amd-pstate: add driver working mode introduction
cpufreq: amd-pstate: add amd-pstate driver parameter for mode selection
cpufreq: amd-pstate: change amd-pstate driver to be built-in type
cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL register at init
Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy"
- Fix size of incorrectly increased from four to eight bytes
TOD field of crash dump save area. As result in case of
kdump NT_S390_TODPREG ELF notes section contains correct
value and "detected read beyond size of field" compiler
warning goes away.
- Fix memory leak in cryptographic Adjunct Processors (AP)
module on initialization failure path.
- Add Gerald Schaefer <gerald.schaefer@linux.ibm.com> and
Alexander Gordeev <agordeev@linux.ibm.com> as S390 memory
management maintainers. Also rename the S390 section to
S390 ARCHITECTURE to be a bit more precise.
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Merge tag 's390-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Fix size of incorrectly increased from four to eight bytes TOD field
of crash dump save area. As result in case of kdump NT_S390_TODPREG
ELF notes section contains correct value and "detected read beyond
size of field" compiler warning goes away.
- Fix memory leak in cryptographic Adjunct Processors (AP) module on
initialization failure path.
- Add Gerald Schaefer <gerald.schaefer@linux.ibm.com> and Alexander
Gordeev <agordeev@linux.ibm.com> as S390 memory management
maintainers. Also rename the S390 section to S390 ARCHITECTURE to be
a bit more precise.
* tag 's390-6.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
MAINTAINERS: add S390 MM section
s390/crashdump: fix TOD programmable field size
s390/ap: fix memory leak in ap_init_qci_info()
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Merge tag 'hyperv-fixes-signed-20221125' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Fix IRTE allocation in Hyper-V PCI controller (Dexuan Cui)
- Fix handling of SCSI srb_status and capacity change events (Michael
Kelley)
- Restore VP assist page after CPU offlining and onlining (Vitaly
Kuznetsov)
- Fix some memory leak issues in VMBus (Yang Yingliang)
* tag 'hyperv-fixes-signed-20221125' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: vmbus: fix possible memory leak in vmbus_device_register()
Drivers: hv: vmbus: fix double free in the error path of vmbus_add_channel_work()
PCI: hv: Only reuse existing IRTE allocation for Multi-MSI
scsi: storvsc: Fix handling of srb_status and capacity change events
x86/hyperv: Restore VP assist page after cpu offlining/onlining
There have been a lot of hotfixes this cycle, and this is quite a large
batch given how far we are into the -rc cycle. Presumably a reflection of
the unusually large amount of MM material which went into 6.1-rc1.
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Merge tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"24 MM and non-MM hotfixes. 8 marked cc:stable and 16 for post-6.0
issues.
There have been a lot of hotfixes this cycle, and this is quite a
large batch given how far we are into the -rc cycle. Presumably a
reflection of the unusually large amount of MM material which went
into 6.1-rc1"
* tag 'mm-hotfixes-stable-2022-11-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (24 commits)
test_kprobes: fix implicit declaration error of test_kprobes
nilfs2: fix nilfs_sufile_mark_dirty() not set segment usage as dirty
mm/cgroup/reclaim: fix dirty pages throttling on cgroup v1
mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
swapfile: fix soft lockup in scan_swap_map_slots
hugetlb: fix __prep_compound_gigantic_page page flag setting
kfence: fix stack trace pruning
proc/meminfo: fix spacing in SecPageTables
mm: multi-gen LRU: retry folios written back while isolated
mailmap: update email address for Satya Priya
mm/migrate_device: return number of migrating pages in args->cpages
kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible
MAINTAINERS: update Alex Hung's email address
mailmap: update Alex Hung's email address
mm: mmap: fix documentation for vma_mas_szero
mm/damon/sysfs-schemes: skip stats update if the scheme directory is removed
mm/memory: return vm_fault_t result from migrate_to_ram() callback
mm: correctly charge compressed memory to its memcg
ipc/shm: call underlying open/close vm_ops
gcov: clang: fix the buffer overflow issue
...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"A couple of fixes, one of them for this cycle regression..."
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: vfs_tmpfile: ensure O_EXCL flag is enforced
fs: use acquire ordering in __fget_light()
A few more last-minute fixes for 6.1 that have been gathered in the
last week; nothing looks too worrisome, mostly device-specific small
fixes, including the ABI fix for ASoC SOF.
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Merge tag 'sound-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few more last-minute fixes for 6.1 that have been gathered in the
last week; nothing looks too worrisome, mostly device-specific small
fixes, including the ABI fix for ASoC SOF"
* tag 'sound-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: soc-pcm: Add NULL check in BE reparenting
ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event
ASoC: SOF: dai: move AMD_HS to end of list to restore backwards-compatibility
ASoC: max98373: Add checks for devm_kcalloc
ASoC: rt711-sdca: fix the latency time of clock stop prepare state machine transitions
ASoC: soc-pcm: Don't zero TDM masks in __soc_pcm_open()
ASoC: sgtl5000: Reset the CHIP_CLK_CTRL reg on remove
ASoC: hdac_hda: fix hda pcm buffer overflow issue
ASoC: stm32: i2s: remove irqf_oneshot flag
ASoC: wm8962: Wait for updated value of WM8962_CLOCKING1 register
amdgpu:
- amdgpu gang submit fix.
- DCN 3.1.4 fixes
- DP MST DSC deadlock fixes
- HMM userptr fixes
- Fix Aldebaran CU occupancy reporting
- GFX11 fixes
- PSP suspend/resume fix
- DCE12 KASAN fix
- DCN 3.2.x fixes
- Rotated cursor fix
- SMU 13.x fix
- DELL platform suspend/resume fixes
- VCN4 SR-IOV fix
- Display regression fix for polled connectors
i915:
- Fix GVT KVM reference count handling
- Never purge busy TTM objects
- Fix warn in intel_display_power_*_domain() functions
dma-buf:
- Use dma_fence_unwrap_for_each when importing sync files.
- Fix race in dma_heap_add().
fbcon:
- Fix use of uninitialized memory in logo.
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Merge tag 'drm-fixes-2022-11-25' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Weekly fixes, amdgpu has not quite settled down.
Most of the changes are small, and the non-amdgpu ones are all fine.
There are a bunch of DP MST DSC fixes that fix some issues introduced
in a previous larger MST rework.
The biggest one is mainly propagating some error values properly
instead of bool returns, and I think it just looks large but doesn't
really change anything too much, except propagating errors that are
required to avoid deadlocks. I've gone over it and a few others and
they've had some decent testing over the last few weeks.
Summary:
amdgpu:
- amdgpu gang submit fix
- DCN 3.1.4 fixes
- DP MST DSC deadlock fixes
- HMM userptr fixes
- Fix Aldebaran CU occupancy reporting
- GFX11 fixes
- PSP suspend/resume fix
- DCE12 KASAN fix
- DCN 3.2.x fixes
- Rotated cursor fix
- SMU 13.x fix
- DELL platform suspend/resume fixes
- VCN4 SR-IOV fix
- Display regression fix for polled connectors
i915:
- Fix GVT KVM reference count handling
- Never purge busy TTM objects
- Fix warn in intel_display_power_*_domain() functions
dma-buf:
- Use dma_fence_unwrap_for_each when importing sync files
- Fix race in dma_heap_add()
fbcon:
- Fix use of uninitialized memory in logo"
* tag 'drm-fixes-2022-11-25' of git://anongit.freedesktop.org/drm/drm: (30 commits)
drm/amdgpu/vcn: re-use original vcn0 doorbell value
drm/amdgpu: Partially revert "drm/amdgpu: update drm_display_info correctly when the edid is read"
drm/amd/display: No display after resume from WB/CB
drm/amdgpu: fix use-after-free during gpu recovery
drm/amd/pm: update driver if header for smu_13_0_7
drm/amd/display: Fix rotated cursor offset calculation
drm/amd/display: Use new num clk levels struct for max mclk index
drm/amd/display: Avoid setting pixel rate divider to N/A
drm/amd/display: Use viewport height for subvp mall allocation size
drm/amd/display: Update soc bounding box for dcn32/dcn321
drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
drm/amdgpu/psp: don't free PSP buffers on suspend
fbcon: Use kzalloc() in fbcon_prepare_logo()
dma-buf: fix racing conflict of dma_heap_add()
drm/amd/amdgpu: reserve vm invalidation engine for firmware
drm/amdgpu: Enable Aldebaran devices to report CU Occupancy
drm/amdgpu: fix userptr HMM range handling v2
drm/amdgpu: always register an MMU notifier for userptr
drm/amdgpu/dm/mst: Fix uninitialized var in pre_compute_mst_dsc_configs_for_state()
drm/amdgpu/dm/dp_mst: Don't grab mst_mgr->lock when computing DSC state
...
drm-misc-fixes for v6.1-rc7:
- Another amdgpu gang submit fix.
- Use dma_fence_unwrap_for_each when importing sync files.
- Fix race in dma_heap_add().
- Fix use of uninitialized memory in logo.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a5721505-4823-98ef-7d6f-0ea478221391@linux.intel.com
There are a bunch of late fixes that just came in, in particular
a longer series for Rockchips devicetree files, but most of those
just address cosmetic errors that were found during the binding
validation.
There are a couple of code changes:
- A regression fix to the IXP42x PCI bus
- A fix for a memory leak on optee, and another one for mach-mxs
- Two fixes for the sunxi rsb bus driver, to address
problems with the shutdown logic
The rest are small but important devicetree fixes for a number of
individual boards, addressing issues across all platforms:
- arm global timer on older rockchip SoCs is unstable and
needs to be disabled in favor of a more reliable clocksource
- Corrections to fix bluetooth, mmc, and networking on
a few Rockchip boards
- at91/sam9g20ek UDC needs a pin controller config change
- an omap board runs into mmc probe errors because of regulator
nodes in the wrong place
- imx8mp-evk has a minor inaccuracy with its pin config,
but without user visible impact
- The Allwinner H6 Hantro G2 video decoder needs an IOMMU
reference to prevent the driver from crashing
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Merge tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are a bunch of late fixes that just came in, in particular a
longer series for Rockchips devicetree files, but most of those just
address cosmetic errors that were found during the binding validation.
There are a couple of code changes:
- A regression fix to the IXP42x PCI bus
- A fix for a memory leak on optee, and another one for mach-mxs
- Two fixes for the sunxi rsb bus driver, to address problems with
the shutdown logic
The rest are small but important devicetree fixes for a number of
individual boards, addressing issues across all platforms:
- arm global timer on older rockchip SoCs is unstable and needs to be
disabled in favor of a more reliable clocksource
- Corrections to fix bluetooth, mmc, and networking on a few Rockchip
boards
- at91/sam9g20ek UDC needs a pin controller config change
- an omap board runs into mmc probe errors because of regulator nodes
in the wrong place
- imx8mp-evk has a minor inaccuracy with its pin config, but without
user visible impact
- The Allwinner H6 Hantro G2 video decoder needs an IOMMU reference
to prevent the driver from crashing"
* tag 'soc-fixes-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
bus: ixp4xx: Don't touch bit 7 on IXP42x
ARM: dts: imx6q-prti6q: Fix ref/tcxo-clock-frequency properties
arm64: dts: imx8mp-evk: correct pcie pad settings
ARM: mxs: fix memory leak in mxs_machine_init()
ARM: dts: at91: sam9g20ek: enable udc vbus gpio pinctrl
tee: optee: fix possible memory leak in optee_register_device()
arm64: dts: allwinner: h6: Add IOMMU reference to Hantro G2
media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
bus: sunxi-rsb: Support atomic transfers
bus: sunxi-rsb: Remove the shutdown callback
ARM: dts: rockchip: disable arm_global_timer on rk3066 and rk3188
arm64: dts: rockchip: Fix Pine64 Quartz4-B PMIC interrupt
ARM: dts: am335x-pcm-953: Define fixed regulators in root node
ARM: dts: rockchip: rk3188: fix lcdc1-rgb24 node name
arm64: dts: rockchip: fix ir-receiver node names
ARM: dts: rockchip: fix ir-receiver node names
arm64: dts: rockchip: fix adc-keys sub node names
ARM: dts: rockchip: fix adc-keys sub node names
arm: dts: rockchip: remove clock-frequency from rtc
arm: dts: rockchip: fix node name for hym8563 rtc
...
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Merge tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix two build warnings, a copy_thread() bug, two page table
manipulation bugs, and some trivial cleanups"
* tag 'loongarch-fixes-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
docs/zh_CN/LoongArch: Fix wrong description of FPRs Note
LoongArch: Fix unsigned comparison with less than zero
LoongArch: Set _PAGE_DIRTY only if _PAGE_MODIFIED is set in {pmd,pte}_mkwrite()
LoongArch: Set _PAGE_DIRTY only if _PAGE_WRITE is set in {pmd,pte}_mkdirty()
LoongArch: Clear FPU/SIMD thread info flags for kernel thread
LoongArch: SMP: Change prefix from loongson3 to loongson
LoongArch: Combine acpi_boot_table_init() and acpi_boot_init()
LoongArch: Makefile: Use "grep -E" instead of "egrep"
and a use-after-free that can be triggered by a maliciously corrupted
file system.
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Merge tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix a regression in the lazytime code that was introduced in v6.1-rc1,
and a use-after-free that can be triggered by a maliciously corrupted
file system"
* tag 'ext4_for_linus_stable2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
fs: do not update freeing inode i_io_list
ext4: fix use-after-free in ext4_ext_shift_extents
Rockchip SoCs, due to its frequency being bound to the
changing cpu clock.
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Merge tag 'v6.2-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
Disabling of the unreliable arm-global-timer on earliest
Rockchip SoCs, due to its frequency being bound to the
changing cpu clock.
* tag 'v6.2-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: disable arm_global_timer on rk3066 and rk3188
Alexander Gordeev and Gerald Schaefer are covering the whole s390 specific
memory management code. Reflect that by adding a new S390 MM section to
MAINTAINERS.
Also rename the S390 section to S390 ARCHITECTURE to be a bit more precise.
Acked-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The size of the TOD programmable field was incorrectly increased from
four to eight bytes with commit 1a2c5840ac ("s390/dump: cleanup CPU
save area handling").
This leads to an elf notes section NT_S390_TODPREG which has a size of
eight instead of four bytes in case of kdump, however even worse is
that the contents is incorrect: it is supposed to contain only the
contents of the TOD programmable field, but in fact contains a mix of
the TOD programmable field (32 bit upper bits) and parts of the CPU
timer register (lower 32 bits).
Fix this by simply changing the size of the todpreg field within the
save area structure. This will implicitly also fix the size of the
corresponding elf notes sections.
This also gets rid of this compile time warning:
in function ‘fortify_memcpy_chk’,
inlined from ‘save_area_add_regs’ at arch/s390/kernel/crash_dump.c:99:2:
./include/linux/fortify-string.h:413:25: error: call to ‘__read_overflow2_field’
declared with attribute warning: detected read beyond size of field
(2nd parameter); maybe use struct_group()? [-Werror=attribute-warning]
413 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 1a2c5840ac ("s390/dump: cleanup CPU save area handling")
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The ACPI buffer memory (string.pointer) should be freed as the buffer is
not used after returning from bgx_acpi_match_id(), free it to prevent
memory leak.
Fixes: 46b903a01c ("net, thunder, bgx: Add support to get MAC address from ACPI.")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Link: https://lore.kernel.org/r/20221123082237.1220521-1-liaoyu15@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
pci_get_device() will decrease the reference count for the *from*
parameter. So we don't need to call put_device() to decrease the
reference. Let's remove the put_device() in the loop and only decrease
the reference count of the returned 'pdev' for the last loop because it
will not be passed to pci_get_device() as input parameter. We don't need
to check if 'pdev' is NULL because it is already checked inside
pci_dev_put(). Also add pci_dev_put() for the error path.
Fixes: fe1939bb23 ("octeontx2-af: Add SDP interface support")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
Link: https://lore.kernel.org/r/20221123065919.31499-1-wangxiongfeng2@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Call phylink_disconnect_phy() in tse_shutdown() to release the
resources occupied by phylink_of_phy_connect() in the tse_open().
Fixes: fef2998203 ("net: altera: tse: convert to phylink")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Link: https://lore.kernel.org/r/20221123011617.332302-1-liujian56@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When doing the following test steps, an error was found:
step 1: modprobe virtio_net succeeded
# modprobe virtio_net <-- OK
step 2: fault injection in register_netdevice()
# modprobe -r virtio_net <-- OK
# ...
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 3521 Comm: modprobe
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
Call Trace:
<TASK>
...
should_failslab+0xa/0x20
...
dev_set_name+0xc0/0x100
netdev_register_kobject+0xc2/0x340
register_netdevice+0xbb9/0x1320
virtnet_probe+0x1d72/0x2658 [virtio_net]
...
</TASK>
virtio_net: probe of virtio0 failed with error -22
step 3: modprobe virtio_net failed
# modprobe virtio_net <-- failed
virtio_net: probe of virtio0 failed with error -2
The root cause of the problem is that the queues are not
disable on the error handling path when register_netdevice()
fails in virtnet_probe(), resulting in an error "-ENOENT"
returned in the next modprobe call in setup_vq().
virtio_pci_modern_device uses virtqueues to send or
receive message, and "queue_enable" records whether the
queues are available. In vp_modern_find_vqs(), all queues
will be selected and activated, but once queues are enabled
there is no way to go back except reset.
Fix it by reset virtio device on error handling path. This
makes error handling follow the same order as normal device
cleanup in virtnet_remove() which does: unregister, destroy
failover, then reset. And that flow is better tested than
error handling so we can be reasonably sure it works well.
Fixes: 0246555550 ("virtio_net: fix use after free on allocation failure")
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20221122150046.3910638-1-lizetao1@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The ACPI buffer memory (buffer.pointer) should be freed as the
buffer is not used after acpi_evaluate_object(), free it to
prevent memory leak.
Fixes: 13e920d93e ("net: wwan: t7xx: Add core components")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1669119580-28977-1-git-send-email-guohanjun@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As the devm_kcalloc may return NULL pointer,
it should be better to add check for the return
value, as same as the others.
Fixes: e8e095b3b3 ("octeontx2-af: cn10k: Bandwidth profiles config support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20221122055449.31247-1-jiasheng@iscas.ac.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In the blamed commit, a rudimentary reallocation procedure for RX buffer
descriptors was implemented, for the situation when their format changes
between normal (no PTP) and extended (PTP).
enetc_hwtstamp_set() calls enetc_close() and enetc_open() in a sequence,
and this sequence loses information which was previously configured in
the TX BDR Mode Register, specifically via the enetc_set_bdr_prio() call.
The TX ring priority is configured by tc-mqprio and tc-taprio, and
affects important things for TSN such as the TX time of packets. The
issue manifests itself most visibly by the fact that isochron --txtime
reports premature packet transmissions when PTP is first enabled on an
enetc interface.
Save the TX ring priority in a new field in struct enetc_bdr (occupies a
2 byte hole on arm64) in order to make this survive a ring reconfiguration.
Fixes: 434cebabd3 ("enetc: Add dynamic allocation of extended Rx BD rings")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Link: https://lore.kernel.org/r/20221122130936.1704151-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Martin Faltesek says:
====================
nfc: st-nci: Restructure validating logic in EVT_TRANSACTION
These are the same 3 patches that were applied in st21nfca here:
https://lore.kernel.org/netdev/20220607025729.1673212-1-mfaltesek@google.com
with a couple minor differences.
st-nci has nearly identical code to that of st21nfca for EVT_TRANSACTION,
except that there are two extra validation checks that are not present
in the st-nci code.
The 3/3 patch as coded for st21nfca pulls those checks in, bringing both
drivers into parity.
====================
Link: https://lore.kernel.org/r/20221122004246.4186422-1-mfaltesek@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The transaction buffer is allocated by using the size of the packet buf,
and subtracting two which seems intended to remove the two tags which are
not present in the target structure. This calculation leads to under
counting memory because of differences between the packet contents and the
target structure. The aid_len field is a u8 in the packet, but a u32 in
the structure, resulting in at least 3 bytes always being under counted.
Further, the aid data is a variable length field in the packet, but fixed
in the structure, so if this field is less than the max, the difference is
added to the under counting.
To fix, perform validation checks progressively to safely reach the
next field, to determine the size of both buffers and verify both tags.
Once all validation checks pass, allocate the buffer and copy the data.
This eliminates freeing memory on the error path, as validation checks are
moved ahead of memory allocation.
Reported-by: Denis Efremov <denis.e.efremov@oracle.com>
Reviewed-by: Guenter Roeck <groeck@google.com>
Fixes: 5d1ceb7f5e ("NFC: st21nfcb: Add HCI transaction event support")
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The first validation check for EVT_TRANSACTION has two different checks
tied together with logical AND. One is a check for minimum packet length,
and the other is for a valid aid_tag. If either condition is true (fails),
then an error should be triggered. The fix is to change && to ||.
Reported-by: Denis Efremov <denis.e.efremov@oracle.com>
Reviewed-by: Guenter Roeck <groeck@google.com>
Fixes: 5d1ceb7f5e ("NFC: st21nfcb: Add HCI transaction event support")
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Steffen Klassert says:
====================
ipsec 2022-11-23
1) Fix "disable_policy" on ipv4 early demuxP Packets after
the initial packet in a flow might be incorectly dropped
on early demux if there are no matching policies.
From Eyal Birger.
2) Fix a kernel warning in case XFRM encap type is not
available. From Eyal Birger.
3) Fix ESN wrap around for GSO to avoid a double usage of a
sequence number. From Christian Langrock.
4) Fix a send_acquire race with pfkey_register.
From Herbert Xu.
5) Fix a list corruption panic in __xfrm_state_delete().
Thomas Jarosch.
6) Fix an unchecked return value in xfrm6_init().
Chen Zhongjin.
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
xfrm: Fix ignored return value in xfrm6_init()
xfrm: Fix oops in __xfrm_state_delete()
af_key: Fix send_acquire race with pfkey_register
xfrm: replay: Fix ESN wrap around for GSO
xfrm: lwtunnel: squelch kernel warning in case XFRM encap type is not available
xfrm: fix "disable_policy" on ipv4 early demux
====================
Link: https://lore.kernel.org/r/20221123093117.434274-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Fix regression in ipset hash:ip with IPv4 range, from Vishwanath Pai.
This is fixing up a bug introduced in the 6.0 release.
2) The "netfilter: ipset: enforce documented limit to prevent allocating
huge memory" patch contained a wrong condition which makes impossible to
add up to 64 clashing elements to a hash:net,iface type of set while it
is the documented feature of the set type. The patch fixes the condition
and thus makes possible to add the elements while keeps preventing
allocating huge memory, from Jozsef Kadlecsik. This has been broken
for several releases.
3) Missing locking when updating the flow block list which might lead
a reader to crash. This has been broken since the introduction of the
flowtable hardware offload support.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: flowtable_offload: add missing locking
netfilter: ipset: restore allowing 64 clashing elements in hash:net,iface
netfilter: ipset: regression in ip_set_hash_ip.c
====================
Link: https://lore.kernel.org/r/20221122212814.63177-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The documentation refers to invalid web page under www.linuxfoundation.org
The patch refers to a working URL under wiki.linuxfoundation.org
Signed-off-by: Nir Levy <bhr166@gmail.com>
Link: https://lore.kernel.org/all/20221120220630.7443-1-bhr166@gmail.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A few fixes, all device specific. The most important ones are for the
i.MX driver which had a couple of nasty data corruption inducing errors
appear after the change to support PIO mode in the last merge window
(one introduced by the change and one latent one which the PIO changes
exposed), thanks to Frieder, Fabio, Marc and Marek for jumping on that
and resolving the issues quickly once they were found.
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Merge tag 'spi-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few fixes, all device specific.
The most important ones are for the i.MX driver which had a couple of
nasty data corruption inducing errors appear after the change to
support PIO mode in the last merge window (one introduced by the
change and one latent one which the PIO changes exposed).
Thanks to Frieder, Fabio, Marc and Marek for jumping on that and
resolving the issues quickly once they were found"
* tag 'spi-fix-v6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-imx: spi_imx_transfer_one(): check for DMA transfer first
spi: tegra210-quad: Fix duplicate resource error
spi: dw-dma: decrease reference count in dw_spi_dma_init_mfld()
spi: spi-imx: Fix spi_bus_clk if requested clock is higher than input clock
spi: mediatek: Fix DEVAPC Violation at KO Remove
Two fixes:
- 9p now uses a variable size for its recv buffer, but every place
hadn't been updated properly to use it and some buffer overflows
have been found and needed fixing.
There's still one place where msize is incorrectly used in a safety
check (p9_check_errors), but all paths leading to it should already
be avoiding overflows and that patch took a bit more time to get
right for zero-copy requests so I'll send it for 6.2
- yet another race condition in p9_conn_cancel introduced by a
fix of a syzbot report in the same place, maybe at some point
we'll get it right without burning it all down...
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Merge tag '9p-for-6.1-rc7' of https://github.com/martinetd/linux
Pull 9p fixes from Dominique Martinet:
- 9p now uses a variable size for its recv buffer, but every place
hadn't been updated properly to use it and some buffer overflows have
been found and needed fixing.
There's still one place where msize is incorrectly used in a safety
check (p9_check_errors), but all paths leading to it should already
be avoiding overflows and that patch took a bit more time to get
right for zero-copy requests so I'll send it for 6.2
- yet another race condition in p9_conn_cancel introduced by a fix for
a syzbot report in the same place. Maybe at some point we'll get it
right without burning it all down...
* tag '9p-for-6.1-rc7' of https://github.com/martinetd/linux:
9p/xen: check logical size for buffer size
9p/fd: Use P9_HDRSZ for header size
9p/fd: Fix write overflow in p9_read_work
9p/fd: fix issue of list_del corruption in p9_fd_cancel()
The type of a->key[0] is char in fscache_volume_same(). If the length
of cache volume key is greater than 127, the value of a->key[0] is less
than 0. In this case, klen becomes much larger than 255 after type
conversion, because the type of klen is size_t. As a result, memcmp()
is read out of bounds.
This causes a slab-out-of-bounds Read in __fscache_acquire_volume(), as
reported by Syzbot.
Fix this by changing the type of the stored key to "u8 *" rather than
"char *" (it isn't a simple string anyway). Also put in a check that
the volume name doesn't exceed NAME_MAX.
BUG: KASAN: slab-out-of-bounds in memcmp+0x16f/0x1c0 lib/string.c:757
Read of size 8 at addr ffff888016f3aa90 by task syz-executor344/3613
Call Trace:
memcmp+0x16f/0x1c0 lib/string.c:757
memcmp include/linux/fortify-string.h:420 [inline]
fscache_volume_same fs/fscache/volume.c:133 [inline]
fscache_hash_volume fs/fscache/volume.c:171 [inline]
__fscache_acquire_volume+0x76c/0x1080 fs/fscache/volume.c:328
fscache_acquire_volume include/linux/fscache.h:204 [inline]
v9fs_cache_session_get_cookie+0x143/0x240 fs/9p/cache.c:34
v9fs_session_init+0x1166/0x1810 fs/9p/v9fs.c:473
v9fs_mount+0xba/0xc90 fs/9p/vfs_super.c:126
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1530
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1326/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
Fixes: 62ab633523 ("fscache: Implement volume registration")
Reported-by: syzbot+a76f6a6e524cf2080aa3@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Zhang Peng <zhangpeng362@huawei.com>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: Jeff Layton <jlayton@kernel.org>
cc: v9fs-developer@lists.sourceforge.net
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/Y3OH+Dmi0QIOK18n@codewreck.org/ # Zhang Peng's v1 fix
Link: https://lore.kernel.org/r/20221115140447.2971680-1-zhangpeng362@huawei.com/ # Zhang Peng's v2 fix
Link: https://lore.kernel.org/r/166869954095.3793579.8500020902371015443.stgit@warthog.procyon.org.uk/ # v1
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A clutch of small fixes that have come in in the past week, people seem
to have been unusually active for this late in the release cycle. The
most critical one here is the fix to renumber the SOF DAI types in order
to restore ABI compatibility which was broken by the addition of AMD
support.
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Merge tag 'asoc-fix-v6.1-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.1
A clutch of small fixes that have come in in the past week, people seem
to have been unusually active for this late in the release cycle. The
most critical one here is the fix to renumber the SOF DAI types in order
to restore ABI compatibility which was broken by the addition of AMD
support.
Although kset_unregister() can eventually remove all attribute files,
explicitly rolling back with the matching function makes the code logic
look clearer.
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
When logging an inode in full mode, or when logging xattrs or when logging
the dir index items of a directory, we are modifying the log tree while
holding a read lock on a leaf from the fs/subvolume tree. This can lead to
a deadlock in rare circumstances, but it is a real possibility, and it was
recently reported by syzbot with the following trace from lockdep:
WARNING: possible circular locking dependency detected
6.1.0-rc5-next-20221116-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/16154 is trying to acquire lock:
ffff88807e3084a0 (&delayed_node->mutex){+.+.}-{3:3}, at: __btrfs_release_delayed_node.part.0+0xa1/0xf30 fs/btrfs/delayed-inode.c:256
but task is already holding lock:
ffff88807df33078 (btrfs-log-00){++++}-{3:3}, at: __btrfs_tree_lock+0x32/0x3d0 fs/btrfs/locking.c:197
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (btrfs-log-00){++++}-{3:3}:
down_read_nested+0x9e/0x450 kernel/locking/rwsem.c:1634
__btrfs_tree_read_lock+0x32/0x350 fs/btrfs/locking.c:135
btrfs_tree_read_lock fs/btrfs/locking.c:141 [inline]
btrfs_read_lock_root_node+0x82/0x3a0 fs/btrfs/locking.c:280
btrfs_search_slot_get_root fs/btrfs/ctree.c:1678 [inline]
btrfs_search_slot+0x3ca/0x2c70 fs/btrfs/ctree.c:1998
btrfs_lookup_csum+0x116/0x3f0 fs/btrfs/file-item.c:209
btrfs_csum_file_blocks+0x40e/0x1370 fs/btrfs/file-item.c:1021
log_csums.isra.0+0x244/0x2d0 fs/btrfs/tree-log.c:4258
copy_items.isra.0+0xbfb/0xed0 fs/btrfs/tree-log.c:4403
copy_inode_items_to_log+0x13d6/0x1d90 fs/btrfs/tree-log.c:5873
btrfs_log_inode+0xb19/0x4680 fs/btrfs/tree-log.c:6495
btrfs_log_inode_parent+0x890/0x2a20 fs/btrfs/tree-log.c:6982
btrfs_log_dentry_safe+0x59/0x80 fs/btrfs/tree-log.c:7083
btrfs_sync_file+0xa41/0x13c0 fs/btrfs/file.c:1921
vfs_fsync_range+0x13e/0x230 fs/sync.c:188
generic_write_sync include/linux/fs.h:2856 [inline]
iomap_dio_complete+0x73a/0x920 fs/iomap/direct-io.c:128
btrfs_direct_write fs/btrfs/file.c:1536 [inline]
btrfs_do_write_iter+0xba2/0x1470 fs/btrfs/file.c:1668
call_write_iter include/linux/fs.h:2160 [inline]
do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
do_iter_write+0x182/0x700 fs/read_write.c:861
vfs_iter_write+0x74/0xa0 fs/read_write.c:902
iter_file_splice_write+0x745/0xc90 fs/splice.c:686
do_splice_from fs/splice.c:764 [inline]
direct_splice_actor+0x114/0x180 fs/splice.c:931
splice_direct_to_actor+0x335/0x8a0 fs/splice.c:886
do_splice_direct+0x1ab/0x280 fs/splice.c:974
do_sendfile+0xb19/0x1270 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64 fs/read_write.c:1309 [inline]
__x64_sys_sendfile64+0x259/0x2c0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> #1 (btrfs-tree-00){++++}-{3:3}:
__lock_release kernel/locking/lockdep.c:5382 [inline]
lock_release+0x371/0x810 kernel/locking/lockdep.c:5688
up_write+0x2a/0x520 kernel/locking/rwsem.c:1614
btrfs_tree_unlock_rw fs/btrfs/locking.h:189 [inline]
btrfs_unlock_up_safe+0x1e3/0x290 fs/btrfs/locking.c:238
search_leaf fs/btrfs/ctree.c:1832 [inline]
btrfs_search_slot+0x265e/0x2c70 fs/btrfs/ctree.c:2074
btrfs_insert_empty_items+0xbd/0x1c0 fs/btrfs/ctree.c:4133
btrfs_insert_delayed_item+0x826/0xfa0 fs/btrfs/delayed-inode.c:746
btrfs_insert_delayed_items fs/btrfs/delayed-inode.c:824 [inline]
__btrfs_commit_inode_delayed_items fs/btrfs/delayed-inode.c:1111 [inline]
__btrfs_run_delayed_items+0x280/0x590 fs/btrfs/delayed-inode.c:1153
flush_space+0x147/0xe90 fs/btrfs/space-info.c:728
btrfs_async_reclaim_metadata_space+0x541/0xc10 fs/btrfs/space-info.c:1086
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
-> #0 (&delayed_node->mutex){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3097 [inline]
check_prevs_add kernel/locking/lockdep.c:3216 [inline]
validate_chain kernel/locking/lockdep.c:3831 [inline]
__lock_acquire+0x2a43/0x56d0 kernel/locking/lockdep.c:5055
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x12f/0x1360 kernel/locking/mutex.c:747
__btrfs_release_delayed_node.part.0+0xa1/0xf30 fs/btrfs/delayed-inode.c:256
__btrfs_release_delayed_node fs/btrfs/delayed-inode.c:251 [inline]
btrfs_release_delayed_node fs/btrfs/delayed-inode.c:281 [inline]
btrfs_remove_delayed_node+0x52/0x60 fs/btrfs/delayed-inode.c:1285
btrfs_evict_inode+0x511/0xf30 fs/btrfs/inode.c:5554
evict+0x2ed/0x6b0 fs/inode.c:664
dispose_list+0x117/0x1e0 fs/inode.c:697
prune_icache_sb+0xeb/0x150 fs/inode.c:896
super_cache_scan+0x391/0x590 fs/super.c:106
do_shrink_slab+0x464/0xce0 mm/vmscan.c:843
shrink_slab_memcg mm/vmscan.c:912 [inline]
shrink_slab+0x388/0x660 mm/vmscan.c:991
shrink_node_memcgs mm/vmscan.c:6088 [inline]
shrink_node+0x93d/0x1f30 mm/vmscan.c:6117
shrink_zones mm/vmscan.c:6355 [inline]
do_try_to_free_pages+0x3b4/0x17a0 mm/vmscan.c:6417
try_to_free_mem_cgroup_pages+0x3a4/0xa70 mm/vmscan.c:6732
reclaim_high.constprop.0+0x182/0x230 mm/memcontrol.c:2393
mem_cgroup_handle_over_high+0x190/0x520 mm/memcontrol.c:2578
try_charge_memcg+0xe0c/0x12f0 mm/memcontrol.c:2816
try_charge mm/memcontrol.c:2827 [inline]
charge_memcg+0x90/0x3b0 mm/memcontrol.c:6889
__mem_cgroup_charge+0x2b/0x90 mm/memcontrol.c:6910
mem_cgroup_charge include/linux/memcontrol.h:667 [inline]
__filemap_add_folio+0x615/0xf80 mm/filemap.c:852
filemap_add_folio+0xaf/0x1e0 mm/filemap.c:934
__filemap_get_folio+0x389/0xd80 mm/filemap.c:1976
pagecache_get_page+0x2e/0x280 mm/folio-compat.c:104
find_or_create_page include/linux/pagemap.h:612 [inline]
alloc_extent_buffer+0x2b9/0x1580 fs/btrfs/extent_io.c:4588
btrfs_init_new_buffer fs/btrfs/extent-tree.c:4869 [inline]
btrfs_alloc_tree_block+0x2e1/0x1320 fs/btrfs/extent-tree.c:4988
__btrfs_cow_block+0x3b2/0x1420 fs/btrfs/ctree.c:440
btrfs_cow_block+0x2fa/0x950 fs/btrfs/ctree.c:595
btrfs_search_slot+0x11b0/0x2c70 fs/btrfs/ctree.c:2038
btrfs_update_root+0xdb/0x630 fs/btrfs/root-tree.c:137
update_log_root fs/btrfs/tree-log.c:2841 [inline]
btrfs_sync_log+0xbfb/0x2870 fs/btrfs/tree-log.c:3064
btrfs_sync_file+0xdb9/0x13c0 fs/btrfs/file.c:1947
vfs_fsync_range+0x13e/0x230 fs/sync.c:188
generic_write_sync include/linux/fs.h:2856 [inline]
iomap_dio_complete+0x73a/0x920 fs/iomap/direct-io.c:128
btrfs_direct_write fs/btrfs/file.c:1536 [inline]
btrfs_do_write_iter+0xba2/0x1470 fs/btrfs/file.c:1668
call_write_iter include/linux/fs.h:2160 [inline]
do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
do_iter_write+0x182/0x700 fs/read_write.c:861
vfs_iter_write+0x74/0xa0 fs/read_write.c:902
iter_file_splice_write+0x745/0xc90 fs/splice.c:686
do_splice_from fs/splice.c:764 [inline]
direct_splice_actor+0x114/0x180 fs/splice.c:931
splice_direct_to_actor+0x335/0x8a0 fs/splice.c:886
do_splice_direct+0x1ab/0x280 fs/splice.c:974
do_sendfile+0xb19/0x1270 fs/read_write.c:1255
__do_sys_sendfile64 fs/read_write.c:1323 [inline]
__se_sys_sendfile64 fs/read_write.c:1309 [inline]
__x64_sys_sendfile64+0x259/0x2c0 fs/read_write.c:1309
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
other info that might help us debug this:
Chain exists of:
&delayed_node->mutex --> btrfs-tree-00 --> btrfs-log-00
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(btrfs-log-00);
lock(btrfs-tree-00);
lock(btrfs-log-00);
lock(&delayed_node->mutex);
Holding a read lock on a leaf from a fs/subvolume tree creates a nasty
lock dependency when we are COWing extent buffers for the log tree and we
have two tasks modifying the log tree, with each one in one of the
following 2 scenarios:
1) Modifying the log tree triggers an extent buffer allocation while
holding a write lock on a parent extent buffer from the log tree.
Allocating the pages for an extent buffer, or the extent buffer
struct, can trigger inode eviction and finally the inode eviction
will trigger a release/remove of a delayed node, which requires
taking the delayed node's mutex;
2) Allocating a metadata extent for a log tree can trigger the async
reclaim thread and make us wait for it to release enough space and
unblock our reservation ticket. The reclaim thread can start flushing
delayed items, and that in turn results in the need to lock delayed
node mutexes and in the need to write lock extent buffers of a
subvolume tree - all this while holding a write lock on the parent
extent buffer in the log tree.
So one task in scenario 1) running in parallel with another task in
scenario 2) could lead to a deadlock, one wanting to lock a delayed node
mutex while having a read lock on a leaf from the subvolume, while the
other is holding the delayed node's mutex and wants to write lock the same
subvolume leaf for flushing delayed items.
Fix this by cloning the leaf of the fs/subvolume tree, release/unlock the
fs/subvolume leaf and use the clone leaf instead.
Reported-by: syzbot+9b7c21f486f5e7f8d029@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/000000000000ccc93c05edc4d8cf@google.com/
CC: stable@vger.kernel.org # 6.0+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
If kzalloc() for 'ap_qci_info_old' failed, 'ap_qci_info' shold be
freed before return. Otherwise it is a memory leak.
Link: https://lore.kernel.org/r/20221114110830.542246-1-weiyongjun@huaweicloud.com
Fixes: 283915850a ("s390/ap: notify drivers on config changed and scan complete callbacks")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
root cause that S2A need to use deduct offset flag.
after setting this flag, vcn0 doorbell value works.
so return it as before
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This partially reverts 20543be93c.
Calling drm_connector_update_edid_property() in
amdgpu_connector_free_edid() causes a noticeable pause in
the system every 10 seconds on polled outputs so revert this
part of the change.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2257
Cc: Claudio Suarez <cssk@net-c.es>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
[why]
First MST sideband message returns AUX_RET_ERROR_HPD_DISCON
on certain intel platform. Aux transaction considered failure
if HPD unexpected pulled low. The actual aux transaction success
in such case, hence do not return error.
[how]
Not returning error when AUX_RET_ERROR_HPD_DISCON detected
on the first sideband message.
v2: squash in fix (Alex)
Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Tsung-hua Lin <Tsung-hua.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
[Why]
Underflow is observed when cursor is still enabled when the cursor
rectangle is outside the bounds of it's surface viewport.
[How]
Update parameters used to determine when cursor should be disabled.
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[WHY?]
When calculating watermark and dlg values, the max mclk level index and
associated speed are needed to find the correlated dummy latency value.
Currently the incorrect index is given due to a clock manager refactor.
[HOW?]
Use num_memclk_level from num_entries_per_clk struct for getting the correct max
mem speed.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
