| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Change is_compressible() return type to bool, use WARN_ON_ONCE(1) for
internal errors and return false for those.
Renames:
check_repeated_data -> has_repeated_data
check_ascii_bytes -> is_mostly_ascii (also refactor into a single loop)
calc_shannon_entropy -> has_low_entropy
Also wraps "wreq->Length" in le32_to_cpu() in should_compress() (caught
by sparse).
Signed-off-by: Enzo Matsumiya <[email protected]>
Suggested-by: Dan Carpenter <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
In SFU mode, activated by -o sfu mount option is now also support for
creating new fifos and sockets.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Linux cifs client can already detect SFU symlinks and reads it content
(target location). But currently is not able to create new symlink. So
implement this missing support.
When 'sfu' mount option is specified and 'mfsymlinks' is not specified then
create new symlinks in SFU-style. This will provide full SFU compatibility
of symlinks when mounting cifs share with 'sfu' option. 'mfsymlinks' option
override SFU for better Apple compatibility as explained in fs_context.c
file in smb3_update_mnt_flags() function.
Extend __cifs_sfu_make_node() function, which now can handle also S_IFLNK
type and refactor structures passed to sync_write() in this function, by
splitting SFU type and SFU data from original combined struct win_dev as
combined fixed-length struct cannot be used for variable-length symlinks.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
list_head can be initialized automatically with LIST_HEAD()
instead of calling INIT_LIST_HEAD(). No functional impact.
Signed-off-by: Hongbo Li <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
SFU since its (first) version 3.0 supports AF_LOCAL sockets and stores them
on filesytem as system file with one zero byte. Add support for detecting
this SFU socket type into cifs_sfu_type() function.
With this change cifs_sfu_type() would correctly detect all special file
types created by SFU: fifo, socket, symlink, block and char.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
For debugging purposes it is a good idea to show detected SFU type also for
Fifo. Debug message is already print for all other special types.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
SFU types IntxCHR and IntxBLK are 8 bytes with zero as last byte. Make it
explicit in memcpy and memset calls, so the zero byte is visible in the
code (and not hidden as string trailing nul byte).
It is important for reader to show the last byte for block and char types
because it differs from the last byte of symlink type (which has it 0x01).
Also it is important to show that the type is not nul-term string, but
rather 8 bytes (with some printable bytes).
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Currently when sfu mount option is specified then CIFS can recognize SFU
symlink, but is not able to read symlink target location. readlink()
syscall just returns that operation is not supported.
Implement this missing functionality in cifs_sfu_type() function. Read
target location of SFU-style symlink, parse it and fill into fattr's
cf_symlink_target member.
SFU-style symlink is file which has system attribute set and file content
is buffer "IntxLNK\1" (8th byte is 0x01) followed by the target location
encoded in little endian UCS-2/UTF-16. This format was introduced in
Interix 3.0 subsystem, as part of the Microsoft SFU 3.0 and is used also by
all later versions. Previous versions had no symlink support.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
SFU symlinks have 8 byte prefix: "IntxLNK\1".
So check also the last 8th byte 0x01.
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Using uninitialized value "bkt" when calling "kfree"
Fixes: 13b68d44990d ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
The dst pointer may not be initialized when calling kvfree(dst)
Fixes: 13b68d44990d9 ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
- Check data compressibility with some heuristics (copied from
btrfs):
- should_compress() final decision is is_compressible(data)
- Cleanup compress/lz77.h leaving only lz77_compress() exposed:
- Move parts to compress/lz77.c, while removing the rest of it
because they were either unused, used only once, were
implemented wrong (thanks to David Howells for the help)
- Updated the compression parameters (still compatible with
Windows implementation) trading off ~20% compression ratio
for ~40% performance:
- min match len: 3 -> 4
- max distance: 8KiB -> 1KiB
- hash table type: u32 * -> u64 *
Known bugs:
This implementation currently works fine in general, but breaks with
some payloads used during testing. Investigation ongoing, to be
fixed in a next commit.
Signed-off-by: Enzo Matsumiya <[email protected]>
Co-developed-by: David Howells <[email protected]>
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
On smb2_async_writev(), set CIFS_COMPRESS_REQ on request flags if
should_compress() returns true.
On smb_send_rqst() check the flags, and compress and send the request to
the server.
(*) If the compression fails with -EMSGSIZE (i.e. compressed size is >=
uncompressed size), the original uncompressed request is sent instead.
Signed-off-by: Enzo Matsumiya <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
operation
Move SMB3.1.1 compression code into experimental config option,
and fix the compress mount option. Implement unchained LZ77
"plain" compression algorithm as per MS-XCA specification
section "2.3 Plain LZ77 Compression Algorithm Details".
Signed-off-by: Enzo Matsumiya <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
The cifs_dir_open() have been removed since
commit 737b758c965a ("[PATCH] cifs: character mapping of special
characters (part 3 of 3)"), and now it is useless, so remove it.
Signed-off-by: Gaosheng Cui <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Use the min() macro to simplify the function and improve
its readability.
Signed-off-by: Shen Lichuan <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Use ERR_CAST() as it is designed for casting an error pointer to
another type.
This macro uses the __force and __must_check modifiers, which are used
to tell the compiler to check for errors where this macro is used.
Signed-off-by: Yuesong Li <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Explained why the typo was not corrected.
Signed-off-by: ChenXiaoSong <[email protected]>
Reviewed-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
There are only 4 different definitions between the client and server:
- STATUS_SERVER_UNAVAILABLE: from client/smb2status.h
- STATUS_FILE_NOT_AVAILABLE: from client/smb2status.h
- STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP: from server/smbstatus.h
- STATUS_INVALID_LOCK_RANGE: from server/smbstatus.h
Rename client/smb2status.h to common/smb2status.h, and merge the
2 different definitions of server to common header file.
Signed-off-by: ChenXiaoSong <[email protected]>
Acked-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
In order to maintain the code more easily, move duplicate definitions
to new common header file.
Signed-off-by: ChenXiaoSong <[email protected]>
Acked-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_ace/struct smb_ace/g' {} +
Signed-off-by: ChenXiaoSong <[email protected]>
Reviewed-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_acl/struct smb_acl/g' {} +
Signed-off-by: ChenXiaoSong <[email protected]>
Reviewed-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_sid/struct smb_sid/g' {} +
Signed-off-by: ChenXiaoSong <[email protected]>
Reviewed-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_ntsd/struct smb_ntsd/g' {} +
Signed-off-by: ChenXiaoSong <[email protected]>
Reviewed-by: Namjae Jeon <[email protected]>
Signed-off-by: Steve French <[email protected]>
|
|
|
|
Pull kvm fix from Paolo Bonzini:
"Do not always honor guest PAT on CPUs that support self-snoop.
This triggers an issue in the bochsdrm driver, which used ioremap()
instead of ioremap_wc() to map the video RAM.
The revert lets video RAM use the WB memory type instead of the slower
UC memory type"
* tag 'for-linus-6.11' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
Revert "KVM: VMX: Always honor guest PAT on CPUs that support self-snoop"
|
|
This reverts commit 377b2f359d1f71c75f8cc352b5c81f2210312d83.
This caused a regression with the bochsdrm driver, which used ioremap()
instead of ioremap_wc() to map the video RAM. After the commit, the
WB memory type is used without the IGNORE_PAT, resulting in the slower
UC memory type. In fact, UC is slow enough to basically cause guests
to not boot... but only on new processors such as Sapphire Rapids and
Cascade Lake. Coffee Lake for example works properly, though that might
also be an effect of being on a larger, more NUMA system.
The driver has been fixed but that does not help older guests. Until we
figure out whether Cascade Lake and newer processors are working as
intended, revert the commit. Long term we might add a quirk, but the
details depend on whether the processors are working as intended: for
example if they are, the quirk might reference bochs-compatible devices,
e.g. in the name and documentation, so that userspace can disable the
quirk by default and only leave it enabled if such a device is being
exposed to the guest.
If instead this is actually a bug in CLX+, then the actions we need to
take are different and depend on the actual cause of the bug.
Signed-off-by: Paolo Bonzini <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- One Intel patch that I mistakenly merged into for-next despite it
belonging in fixes: add Arrow Lake-H/U ACPI ID so this Arrow Lake
chip probes.
- One fix making the CY895x0 reg cache work, which is good because it
makes the device work too.
* tag 'pinctrl-v6.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: pinctrl-cy8c95x0: Fix regcache
pinctrl: meteorlake: Add Arrow Lake-H/U ACPI ID
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A few last-minute ASoC fixes and MAINTAINERS update.
All look small, obvious and nice-to-have fixes for 6.11-final"
* tag 'sound-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: meson: axg-card: fix 'use-after-free'
ASoC: codecs: avoid possible garbage value in peb2466_reg_read()
MAINTAINERS: update Pierre Bossart's email and role
ASoC: tas2781: fix to save the dsp bin file name into the correct array in case name_prefix is not NULL
ASoC: Intel: soc-acpi-intel-mtl-match: add missing empty item
ASoC: Intel: soc-acpi-intel-lnl-match: add missing empty item
|
|
Pull smb client fix from Steve French:
"Fix for packet signing of write"
* tag '6.11-rc7-SMB3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Fix signature miscalculation
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.11
A few last minute fixes, plus an update for Pierre's contact details and
status. It'd be good to get these into v6.11 (especially the
MAINTAINERS update) but it wouldn't be the end of the world if they
waited for the merge window, none of them are super remarkable and it's
just a question of timing that they're last minute.
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fix from Bjorn Helgaas:
- Prevent a possible deadlock (reported by lockdep) when a driver
relinquishes a pci_dev, another driver claims it, and one uses
managed pcim_enable_device() and the other doesn't (Philipp Stanner)
* tag 'pci-v6.11-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI: Fix potential deadlock in pcim_intx()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few last minute fixes for v6.11, they're all individually
unremarkable and only last minute due to when they came in"
* tag 'spi-fix-v6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: nxp-fspi: fix the KASAN report out-of-bounds bug
spi: geni-qcom: Fix incorrect free_irq() sequence
spi: geni-qcom: Undo runtime PM changes at driver exit time
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire fix from Vinod Koul:
- Revert of earlier fix sent for non-continuous port map programming
which caused regression on Intel platforms
* tag 'soundwire-6.11-fixes_2' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: stream: Revert "soundwire: stream: fix programming slave ports for non-continous port maps"
|
|
Pull drm fixes from Dave Airlie:
"Regular fixes pull, the amdgpu JPEG engine fixes are probably the
biggest, they look to block some register accessing, otherwise there
are just minor fixes and regression fixes all over.
nouveau had a regression report going back a few kernels that finally
got fixed, Not entirely happy with so many changes so late, but they
all seem quite benign apart from the jpeg one.
dma-buf/heaps:
- fix off by one in CMA heap fault handler
syncobj:
- fix syncobj leak in drm_syncobj_eventfd_ioctl
amdgpu:
- Avoid races between set_drr() functions and dc_state_destruct()
- Fix regerssion related to zpos
- Fix regression related to overlay cursor
- SMU 14.x updates
- JPEG fixes
- Silence an UBSAN warning
amdkfd:
- Fetch cacheline size from IP discovery
i915:
- Prevent a possible int overflow in wq offsets
xe:
- Remove a double include
- Fix null checks and UAF
- Fix access_ok check in user_fence_create
- Fix compat IS_DISPLAY_STEP() range
- OA fix
- Fixes in show_meminfo
nouveau:
- fix GP10x regression on boot
stm:
- add COMMON_CLK dep
rockchip:
- iommu api change
tegra:
- iommu api change"
* tag 'drm-fixes-2024-09-13' of https://gitlab.freedesktop.org/drm/kernel: (25 commits)
drm/xe/client: add missing bo locking in show_meminfo()
drm/xe/client: fix deadlock in show_meminfo()
drm/xe/oa: Enable Xe2+ PES disaggregation
drm/xe/display: fix compat IS_DISPLAY_STEP() range end
drm/xe: Fix access_ok check in user_fence_create
drm/xe: Fix possible UAF in guc_exec_queue_process_msg
drm/xe: Remove fence check from send_tlb_invalidation
drm/xe/gt: Remove double include
drm/amd/display: Add all planes on CRTC to state for overlay cursor
drm/amdgpu/atomfirmware: Silence UBSAN warning
drm/amd/amdgpu: apply command submission parser for JPEG v1
drm/amd/amdgpu: apply command submission parser for JPEG v2+
drm/amd/pm: fix the pp_dpm_pcie issue on smu v14.0.2/3
drm/amd/pm: update the features set on smu v14.0.2/3
drm/amd/display: Do not reset planes based on crtc zpos_changed
drm/amd/display: Avoid race between dcn35_set_drr() and dc_state_destruct()
drm/amd/display: Avoid race between dcn10_set_drr() and dc_state_destruct()
drm/amdkfd: Add cache line size info
drm/tegra: Use iommu_paging_domain_alloc()
drm/rockchip: Use iommu_paging_domain_alloc()
...
|
|
The size of the mux stride was off by one, which could result in
invalid pin configuration on the device side or invalid state
readings on the software side.
While on it also update the code and:
- Increase the mux stride size to 16
- Align the virtual muxed regmap range to 16
- Start the regmap window at the selector
- Mark reserved registers as not-readable
Fixes: 8670de9fae49 ("pinctrl: cy8c95x0: Use regmap ranges")
Signed-off-by: Patrick Rudolph <[email protected]>
Reported-by: Andy Shevchenko <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into fixes
intel-pinctrl for v6.11-1
This includes a new ACPI ID that is added to the Intel Meteor Lake
driver to support recent Intel Arrow Lake hardware.
Signed-off-by: Linus Walleij <[email protected]>
|
|
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
- Remove a double include (Lucas)
- Fix null checks and UAF (Brost)
- Fix access_ok check in user_fence_create (Nirmoy)
- Fix compat IS_DISPLAY_STEP() range (Jani)
- OA fix (Ashutosh)
- Fixes in show_meminfo (Auld)
Signed-off-by: Dave Airlie <[email protected]>
From: Rodrigo Vivi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
|
|
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
An off-by-one fix for the CMA DMA-buf heap, An init fix for nouveau, a
config dependency fix for stm, a syncobj leak fix, and two iommu fixes
for tegra and rockchip.
Signed-off-by: Dave Airlie <[email protected]>
From: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20240912-phenomenal-upbeat-grouse-a26781@houat
|
|
https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Prevent a possible int overflow in wq offsets [guc] (Nikita Zhandarovich)
Signed-off-by: Dave Airlie <[email protected]>
From: Tvrtko Ursulin <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/ZuKTN2XngNhBB3z3@linux
|
|
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.11-2024-09-11:
amdgpu:
- Avoid races between set_drr() functions and dc_state_destruct()
- Fix regerssion related to zpos
- Fix regression related to overlay cursor
- SMU 14.x updates
- JPEG fixes
- Silence an UBSAN warning
amdkfd:
- Fetch cacheline size from IP discovery
Signed-off-by: Dave Airlie <[email protected]>
From: Alex Deucher <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
|
|
Fix the calculation of packet signatures by adding the offset into a page
in the read or write data payload when hashing the pages from it.
Fixes: 39bc58203f04 ("cifs: Add a function to Hash the contents of an iterator")
Signed-off-by: David Howells <[email protected]>
Reviewed-by: Tom Talpey <[email protected]>
Reviewed-by: Paulo Alcantara (Red Hat) <[email protected]>
cc: Shyam Prasad N <[email protected]>
cc: Rohith Surabattula <[email protected]>
cc: Jeff Layton <[email protected]>
cc: [email protected]
cc: [email protected]
Signed-off-by: Steve French <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One build fix for 32-bit arches using the Qualcomm PLL driver. It's
cheaper to use a comparison here instead of a division so we just do
that to fix the build"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: clk-alpha-pll: Simplify the zonda_pll_adjust_l_val()
|
|
Pull block fix from Jens Axboe:
"Just a single fix for a deadlock issue that can happen if someone
attempts to change the root disk IO scheduler with a module that
requires loading from disk.
Changing the scheduler freezes the queue while that operation is
happening, hence causing a deadlock"
* tag 'block-6.11-20240912' of git://git.kernel.dk/linux:
block: Prevent deadlocks when switching elevators
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
- Fix clearing status register bits for chips supporting older
PMBus versions
* tag 'hwmon-for-v6.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (pmbus) Conditionally clear individual status bits for pmbus rev >= 1.2
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
"A fix for a NULL worker->pool deref bug which can be triggered when a
worker is created and then destroyed immediately"
* tag 'wq-for-6.11-rc7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Clear worker->pool in the worker thread context
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- Two fixes for smp_processor_id() calls in preemptible sections: one
if the perf driver, and one in the fence.i prctl.
* tag 'riscv-for-linus-6.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Disable preemption while handling PR_RISCV_CTX_SW_FENCEI_OFF
drivers: perf: Fix smp_processor_id() use in preemptible code
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
There is a recently notified BT regression with no fix yet. I do not
think a fix will land in the next week.
Current release - regressions:
- core: tighten bad gso csum offset check in virtio_net_hdr
- netfilter: move nf flowtable bpf initialization in
nf_flow_table_module_init()
- eth: ice: stop calling pci_disable_device() as we use pcim
- eth: fou: fix null-ptr-deref in GRO.
Current release - new code bugs:
- hsr: prevent NULL pointer dereference in hsr_proxy_announce()
Previous releases - regressions:
- hsr: remove seqnr_lock
- netfilter: nft_socket: fix sk refcount leaks
- mptcp: pm: fix uaf in __timer_delete_sync
- phy: dp83822: fix NULL pointer dereference on DP83825 devices
- eth: revert "virtio_net: rx enable premapped mode by default"
- eth: octeontx2-af: Modify SMQ flush sequence to drop packets
Previous releases - always broken:
- eth: mlx5: fix bridge mode operations when there are no VFs
- eth: igb: Always call igb_xdp_ring_update_tail() under Tx lock"
* tag 'net-6.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits)
net: netfilter: move nf flowtable bpf initialization in nf_flow_table_module_init()
net: tighten bad gso csum offset check in virtio_net_hdr
netlink: specs: mptcp: fix port endianness
net: dpaa: Pad packets to ETH_ZLEN
mptcp: pm: Fix uaf in __timer_delete_sync
net: libwx: fix number of Rx and Tx descriptors
net: dsa: felix: ignore pending status of TAS module when it's disabled
net: hsr: prevent NULL pointer dereference in hsr_proxy_announce()
selftests: mptcp: include net_helper.sh file
selftests: mptcp: include lib.sh file
selftests: mptcp: join: restrict fullmesh endp on 1st sf
netfilter: nft_socket: make cgroupsv2 matching work with namespaces
netfilter: nft_socket: fix sk refcount leaks
MAINTAINERS: Add ethtool pse-pd to PSE NETWORK DRIVER
dt-bindings: net: tja11xx: fix the broken binding
selftests: net: csum: Fix checksums for packets with non-zero padding
net: phy: dp83822: Fix NULL pointer dereference on DP83825 devices
virtio_net: disable premapped mode by default
Revert "virtio_net: big mode skip the unmap check"
Revert "virtio_net: rx remove premapped failover code"
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- asus-wmi: Disable OOBE that interferes with backlight control
- panasonic-laptop: Two fixes to SINF array handling
* tag 'platform-drivers-x86-v6.11-7' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-wmi: Disable OOBE experience on Zenbook S 16
platform/x86: panasonic-laptop: Allocate 1 entry extra in the sinf array
platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
|
|
As Jann points out, PFN mappings are special, because unlike normal
memory mappings, there is no lifetime information associated with the
mapping - it is just a raw mapping of PFNs with no reference counting of
a 'struct page'.
That's all very much intentional, but it does mean that it's easy to
mess up the cleanup in case of errors. Yes, a failed mmap() will always
eventually clean up any partial mappings, but without any explicit
lifetime in the page table mapping itself, it's very easy to do the
error handling in the wrong order.
In particular, it's easy to mistakenly free the physical backing store
before the page tables are actually cleaned up and (temporarily) have
stale dangling PTE entries.
To make this situation less error-prone, just make sure that any partial
pfn mapping is torn down early, before any other error handling.
Reported-and-tested-by: Jann Horn <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Simona Vetter <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
|