- fix stale runlist element dereferences in MFT writeback and fallocate
- fix mrec_lock ABBA deadlock in rename
- prevent userspace modification of NTFS system files
- avoid inode eviction/writeback self-deadlocks
- reject malformed resident attributes in non-resident runlist mapping
- avoid post_write_mst_fixup() on invalid index blocks
- fix a hole runlist leak in insert-range error handling
- sanitize directory lookup MFT references from disk
- fail attribute-list updates after SB_ACTIVE is cleared during teardown
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Merge tag 'ntfs-for-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs fixes from Namjae Jeon:
- fix stale runlist element dereferences in MFT writeback and fallocate
- fix mrec_lock ABBA deadlock in rename
- prevent userspace modification of NTFS system files
- avoid inode eviction/writeback self-deadlocks
- reject malformed resident attributes in non-resident runlist mapping
- avoid post_write_mst_fixup() on invalid index blocks
- fix a hole runlist leak in insert-range error handling
- sanitize directory lookup MFT references from disk
- fail attribute-list updates after SB_ACTIVE is cleared during
teardown
* tag 'ntfs-for-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
ntfs: fail attrlist updates when the superblock is inactive
ntfs: sanitize MFT references returned from ntfs_lookup_inode_by_name()
ntfs: fix hole runlist memory leak in insert range error path
ntfs: avoid calling post_write_mst_fixup() for invalid index_block
ntfs: fix WARN_ON for resident attribute in ntfs_map_runlist_nolock()
ntfs: avoid self-deadlock during inode eviction
ntfs: make system files immutable to prevent corruption
ntfs: fix mrec_lock ABBA deadlock in rename
ntfs: avoid stale runlist element dereference in fallocate
ntfs: avoid stale runlist element dereference in MFT writeback
Bugfixes:
* SUNRPC: Release lower rpc_clnt if killed waiting for XPRT_LOCKED
* SUNRPC: Pin upper rpc_clnt across the TLS connect_worker
* NFS: Include MAY_WRITE in open permission mask for O_TRUNC
* NFS: Charge unstable writes by request size, not folio size
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Merge tag 'nfs-for-7.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- SUNRPC:
- Release lower rpc_clnt if killed waiting for XPRT_LOCKED
- Pin upper rpc_clnt across the TLS connect_worker
- NFS:
- Include MAY_WRITE in open permission mask for O_TRUNC
- Charge unstable writes by request size, not folio size
* tag 'nfs-for-7.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Charge unstable writes by request size, not folio size
NFSv4: include MAY_WRITE in open permission mask for O_TRUNC
SUNRPC: pin upper rpc_clnt across the TLS connect_worker
SUNRPC: release lower rpc_clnt if killed waiting for XPRT_LOCKED
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Merge tag 'v7.2-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- DFS cache allocation fix
- DFS referral bounds check fix
- Fix absolute symlinks when mounting with POSIX extensions
- Fixes for incorrect nlink returned by fstat
- Fix atime in read completion
- Fix busy dentry on umount
- ioctl_query_info buffer overflow fix
- Two fixes for creating special files with SFU
- Fix mode mask in parse_dacl
- SMB1 is_path_accessible wildcard fix and minor SMB1 cleanup
- smb2_check_message fix
- Debug message improvement
- Minor cleanup
* tag 'v7.2-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Remove CIFSSMBSetPathInfoFB() fallback function
cifs: Fix and improve cifs_is_path_accessible() function
smb: client: mask server-provided mode to 07777 in modefromsid
cifs: Show reason why autodisabling serverino support
smb/client: fix incorrect nlink returned by fstat()
smb/client: zero-initialize stack-allocated cifs_open_info_data
smb/client: pass cifs_open_info_data to SMB2_open()
smb/client: use stack-allocated smb2_file_all_info in smb3_query_mf_symlink()
smb: client: fix overflow in passthrough ioctl bounds check
smb: client: fix busy dentry warning on unmount after DIO
cifs: Fix support for creating SFU fifo
cifs: Fix support for creating SFU socket
smb: client: fix atime clamp check in read completion
cifs: validate DFS referral string offsets
smb: client: use GFP_KERNEL for DFS cache allocations
smb: client: restrict implied bcc[0] exemption to responses without data area
smb: client: preserve leading slash for POSIX absolute symlink targets
smb: client: refactor cifs_revalidate_mapping() to use clear_and_wake_up_bit()
- Fix crash when using SMT hotplug on ACPI systems in conjunction with
maxcpus=.
- Fix 30% kswapd performance regression introduced by C1-Pro SME erratum
workaround.
- Fix TLB over-invalidation regression during memory hotplug.
- Fix incorrect encoding of FEAT_BWE2 value in ID_AA64DFR2_EL1.BWE.
- Typo fixes in the arm64 selftests.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Fix crash when using SMT hotplug on ACPI systems in conjunction with
maxcpus=
- Fix 30% kswapd performance regression introduced by C1-Pro SME
erratum workaround
- Fix TLB over-invalidation regression during memory hotplug
- Fix incorrect encoding of FEAT_BWE2 value in ID_AA64DFR2_EL1.BWE
- Typo fixes in the arm64 selftests
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
selftests/arm64: fix spelling errors in comments
arm64/sysreg: Fix BWE field encoding in ID_AA64DFR2_EL1
arm64/mm: Optimize TLB flush in unmap_hotplug_[pmd|pud]_range()
arm64: Avoid eager DVMSync reclaim batches with C1-Pro SME erratum
cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()
arm64: smp: Fix hot-unplug tearing by forcing unregistration
Fixes
- amd/pmc:
- Use correct IP block table for AMD 1Ah M80H SoC
- Avoid logging "(null)" for missing DMI values
- asus-armoury: update power limits for G614PR
- bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume
The following is an automated shortlog grouped by driver:
amd/pmc:
- Avoid logging "(null)" for DMI values
amd-pmc:
- Use correct IP block table for AMD 1Ah M80H SoC
asus-armoury:
- update power limits for G614PR
bitland-mifs-wmi:
- Fix NULL pointer dereference during suspend/resume
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Merge tag 'platform-drivers-x86-v7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- amd/pmc:
- Use correct IP block table for AMD 1Ah M80H SoC
- Avoid logging "(null)" for missing DMI values
- asus-armoury: update power limits for G614PR
- bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume
* tag 'platform-drivers-x86-v7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: amd-pmc: Use correct IP block table for AMD 1Ah M80H SoC
platform/x86: asus-armoury: update power limits for G614PR
platform/x86: bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume
platform/x86/amd/pmc: Avoid logging "(null)" for DMI values
- provide the missing .get_direction() callback in gpio-palmas
- fix interrupt handling in gpio-dwapb
- add a GPIO self-test program binary to .gitignore
- fix a resource leak in gpio-mvebu
- make the GPIO sharing heuristic more adaptable
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Merge tag 'gpio-fixes-for-v7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- provide the missing .get_direction() callback in gpio-palmas
- fix interrupt handling in gpio-dwapb
- add a GPIO self-test program binary to .gitignore
- fix a resource leak in gpio-mvebu
- make the GPIO sharing heuristic more adaptable
* tag 'gpio-fixes-for-v7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mvebu: free generic chips on unbind
selftests: gpio: add gpio-cdev-uaf to .gitignore
gpio: dwapb: Mask interrupts at hardware initialization
gpio: dwapb: Defer clock gating until noirq
gpio: shared: make the voting mechanism adaptable
gpios: palmas: add .get_direction() op
- Fix handling of security locked drive revalidation. This prevents
such drives from being dropped when locked on resume (Terrence).
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Merge tag 'ata-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Fix handling of security locked drive revalidation. This prevents
such drives from being dropped when locked on resume (Terrence)
* tag 'ata-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: Allow capacity transition to zero for locked drives
ata: libata-core: Skip HPA resize for locked drives
fb-helper:
- Sync on first active crtc in fb_dirty, rather than first crtc.
drm_exec:
- Use direct label in drm_exec.
buddy:
- Rework try_harder in the buddy allocator.
i915:
- fix underrun on panthor lake
- LT PHY SSC programming fix
- fix some NULL derefs and leaks
nouveau:
- fix a vmm large/small page table update race
xe:
- Fix PTE index in xe_vm_populate_pgtable for chunked binds
- Wait on external BO kernel fences in exec IOCTL
- Remove duplicate include
- Free madvise VMA array on L2 flush failure
- Stub notifier_lock helpers when DRM_GPUSVM=n
amdgpu:
- PSP 15.0.9 update
- SMU 15.0.9 update
- VCN 5.3 fix
- VI ASPM fix
- Userq fix
- lifetime fix for amdgpu_vm_get_task_info_pasid()
- Gfx10 fix
- SMU 14 fix
amdkfd:
- CRIU bounds checking fixes
- secondary context id fix
- Event bounds checking fix
amdxdna:
- Fix uaf in mmap failure path.
- A lot of deadlocks, access races and return value fixes
analogix_dp:
- Fix analogix_dp bitshifts during link training.
v3d:
- Fix absent indirect bo handling
imagination:
- Make function static to solve compiler warning.
- Fix error checking.
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Merge tag 'drm-fixes-2026-07-10' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes pull for drm, amdgpu, amdxdna, xe leading the way, some
small core fixes and a nouveau stability fix along with some minor
changes in other drivers.
Seems to be a bit quiter than last week at least.
fb-helper:
- Sync on first active crtc in fb_dirty, rather than first crtc
drm_exec:
- Use direct label in drm_exec
buddy:
- Rework try_harder in the buddy allocator
i915:
- fix underrun on panthor lake
- LT PHY SSC programming fix
- fix some NULL derefs and leaks
nouveau:
- fix a vmm large/small page table update race
xe:
- Fix PTE index in xe_vm_populate_pgtable for chunked binds
- Wait on external BO kernel fences in exec IOCTL
- Remove duplicate include
- Free madvise VMA array on L2 flush failure
- Stub notifier_lock helpers when DRM_GPUSVM=n
amdgpu:
- PSP 15.0.9 update
- SMU 15.0.9 update
- VCN 5.3 fix
- VI ASPM fix
- Userq fix
- lifetime fix for amdgpu_vm_get_task_info_pasid()
- Gfx10 fix
- SMU 14 fix
amdkfd:
- CRIU bounds checking fixes
- secondary context id fix
- Event bounds checking fix
amdxdna:
- Fix uaf in mmap failure path
- A lot of deadlocks, access races and return value fixes
analogix_dp:
- Fix analogix_dp bitshifts during link training
v3d:
- Fix absent indirect bo handling
imagination:
- Make function static to solve compiler warning
- Fix error checking"
* tag 'drm-fixes-2026-07-10' of https://gitlab.freedesktop.org/drm/kernel: (44 commits)
nouveau/vmm: fix another SPT/LPT race
drm/imagination: fix error checking of pvr_vm_context_lookup()
drm/imagination: make pvr_fw_trace_init_mask_ops static
gpu/buddy: bail out of try_harder when alignment cannot be honoured
drm/xe/userptr: Stub notifier_lock helpers when DRM_GPUSVM=n
drm/xe: free madvise VMA array on L2 flush failure
drm/xe: remove duplicate <kunit/test-bug.h> include
drm/xe: Wait on external BO kernel fences in exec IOCTL
drm/xe: Fix PTE index in xe_vm_populate_pgtable() for chunked binds
drm/fb-helper: Only consider active CRTCs for vblank sync
drm/amdkfd: Check bounds on CRIU restore queue type and mqd size
drm/amd/pm: fix smu14 power limit range calculation
drm/amdkfd: Check bounds in allocate_event_notification_slot
amdkfd: properly free secondary context id
drm/amdkfd: Don't acquire buffers during CRIU queue restore
drm/amdkfd: Check bounds on CRIU restore event id
drm/gfx10: Program DB_RING_CONTROL
drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid()
drm/amdgpu: trigger GPU recovery when userq destroy fails to unmap a hung queue
drm/amd/amdgpu: disable ASPM on VI if pcie dpm is disabled
...
We've had an unknown Turing issue for a while with page faults since
large pages and compression.
I've got a patch series that syncs all our L2 handling with ogkm and it
made this fault happen more.
After writing a bunch of debugging patches, I spotted an invalid LPT
entry where there should have been a valid one.
A 64K MAP succeeds on a range, but a subsequent SPT put drops SPT refs
across multiple ranges,
We shouldn't assume all ranges where SPTEs go away will have the same
sparse/invalid/valid state, just iterate over each instead and do the
right thing.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fixes: d19512f5ab ("nouveau/vmm: start tracking if the LPT PTE is valid. (v6)")
Link: https://patch.msgid.link/20260615044737.3419585-1-airlied@gmail.com
[ Properly format commit message. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
(cherry picked from commit d008141ed4ce924167a03d46fbce9ad1fe4efa29)
Signed-off-by: Dave Airlie <airlied@redhat.com>
drm-misc-fixes for v7.2-rc3:
- Fix uaf in amdxdna mmap failure path.
- A lot of deadlocks, access races and return value fixes in amdxdna.
- Fix analogix_dp bitshifts during link training.
- Use direct label in drm_exec.
- Fix absent indirect bo handling in v3d.
- Sync on first active crtc in fb_dirty, rather than first crtc.
- Rework try_harder in the buddy allocator.
- Make imagination function static to solve compiler warning.
- Fix imagination error checking.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patch.msgid.link/71e5b48b-307f-47f5-8fd5-b60ea43e4196@linux.intel.com
SCL=0 enablement for always-on VRR timing. It also includes a fix
display LT PHY SSC programming and a small set of i915 fixes
addressing NULL pointer dereferences, memory leaks and bound checks.
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Merge tag 'drm-intel-fixes-2026-07-09' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
Fix underrun regressions on Panther Lake by reverting the recent
SCL=0 enablement for always-on VRR timing. It also includes a fix
display LT PHY SSC programming and a small set of i915 fixes
addressing NULL pointer dereferences, memory leaks and bound checks.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/ak-xZPqluaXVJGtP@intel.com
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Merge tag 'v7.2-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"This contains a set of SMB server fixes mostly around session setup,
multichannel/session binding, and protocol-compatible error reporting:
- Fix SID-to-id mapping so only SIDs with a valid local Unix
representation are translated, while preserving other Windows
SIDs in NT ACL xattrs
- Fix SMB3 multichannel binding across multi-round authentication,
keep the derived channel key separate from the established session
key, and enforce the 32-channel session limit
- Match Windows-compatible close timestamp behavior by coalescing
automatic write time updates smaller than 15ms
- Return STATUS_DISK_FULL for SET_INFO allocation failures caused
by ENOSPC or EFBIG
- Fix several signed SESSION_SETUP error paths so clients see the
intended server status instead of replacing it with
STATUS_ACCESS_DENIED
- Fix reauthentication on bound channels and reject different-user
channel binding with STATUS_ACCESS_DENIED
- Use the referenced session dialect/signing algorithm when
validating and signing rejected cross-dialect binding requests"
* tag 'v7.2-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: use the session dialect for rejected binding signatures
ksmbd: mark rejected cross-dialect bindings as signed
ksmbd: sign rejected SMB2.1 session binding responses
ksmbd: handle channel binding with a different user
ksmbd: find bound sessions during reauthentication
ksmbd: mark invalid session responses as signed
smb/server: map SET_INFO ENOSPC to disk full
ksmbd: coalesce sub-15ms write time updates on close
ksmbd: fix multichannel binding and enforce channel limit
ksmbd: validate SID namespace before mapping IDs
This fallback function CIFSSMBSetPathInfoFB() is called only from
CIFSSMBSetPathInfo() function. CIFSSMBSetPathInfo() is used in
smb_set_file_info() which contains all required fallback code, including
fallback via filehandle, since commit f122121796 ("cifs: Fix changing
times and read-only attr over SMB1 smb_set_file_info() function") and
commit 92210ccd87 ("cifs: Add fallback code path for cifs_mkdir_setinfo()").
So the CIFSSMBSetPathInfoFB() is just code duplication, which is not needed
anymore. Therefore remove it.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Do not call SMBQueryInformation() command for path with SMB wildcard
characters on non-UNICODE connection because server expands wildcards.
Function cifs_is_path_accessible() needs to check if the real path exists
and must not expand wildcard characters.
Do not dynamically allocate memory for small FILE_ALL_INFO structure and
instead allocate it on the stack. This structure is allocated on stack by
all other functions.
When CAP_NT_SMBS was not negotiated then do not issue CIFSSMBQPathInfo()
command. This command returns failure by non-NT Win9x SMB servers, so there
is no need try it. The purpose of cifs_is_path_accessible() function is
just to check if the path is accessible, so SMBQueryInformation() for old
servers is enough.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
When modefromsid is active, parse_dacl() applies the server-provided
sub_auth[2] value from the NFS mode SID to cf_mode without masking to
07777. Apply the correct masking, same as in the read path.
Fixes: e2f8fbfb8d ("cifs: get mode bits from special sid on stat")
Signed-off-by: Norbert Manthey <nmanthey@amazon.de>
Assisted-by: Kiro:claude-opus-4.6
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Current release - regressions:
- bluetooth: fix using chan->conn as indication to no remote netdev
Current release - new code bugs:
- netfilter: cap to maximum number of expectation per master on updates
Previous releases - regressions:
- bluetooth:
- fix UAF of hci_conn_params in add_device_complete
- fix null ptr deref in hci_abort_conn()
- igmp: remove multicast group from hash table on device destruction
- batman-adv: prevent TVLV OOB check overflow
- eth: mlx5/mlx5e:
- fix off-by-one in single-FDB error rollback
- skip peer flow cleanup when LAG seq is unavailable
- fix crashes in dynamic per-channel stats and HV VHCA agent
- eth: mana: Sync page pool RX frags for CPU
Previous releases - always broken:
- netfilter:
- mark malformed IPv6 extension headers for hotdrop
- terminate table name before find_table_lock()
- ipvs: use parsed transport offset in TCP state lookup
- sched: act_pedit: fix TOCTOU heap OOB write in tc offload
- ethtool: rss: fix hfunc and input_xfrm parsing on big endian
- ipv4/ipv6: fix UAF and memory leak in IGMP/MLD
- tls: consume empty data records in tls_sw_read_sock()
- eth: octeontx2-af: fix VF bringup affecting PF promiscuous state
- eth: gue: validate REMCSUM private option length
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter, Bluetooth and batman-adv.
Current release - regressions:
- bluetooth: fix using chan->conn as indication to no remote netdev
Current release - new code bugs:
- netfilter: cap to maximum number of expectation per master on
updates
Previous releases - regressions:
- bluetooth:
- fix UAF of hci_conn_params in add_device_complete
- fix null ptr deref in hci_abort_conn()
- igmp: remove multicast group from hash table on device destruction
- batman-adv: prevent TVLV OOB check overflow
- eth: mlx5/mlx5e:
- fix off-by-one in single-FDB error rollback
- skip peer flow cleanup when LAG seq is unavailable
- fix crashes in dynamic per-channel stats and HV VHCA agent
- eth: mana: Sync page pool RX frags for CPU
Previous releases - always broken:
- netfilter:
- mark malformed IPv6 extension headers for hotdrop
- terminate table name before find_table_lock()
- ipvs: use parsed transport offset in TCP state lookup
- sched: act_pedit: fix TOCTOU heap OOB write in tc offload
- ethtool: rss: fix hfunc and input_xfrm parsing on big endian
- ipv4/ipv6: fix UAF and memory leak in IGMP/MLD
- tls: consume empty data records in tls_sw_read_sock()
- eth:
- octeontx2-af: fix VF bringup affecting PF promiscuous state
- gue: validate REMCSUM private option length"
* tag 'net-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (94 commits)
macsec: don't read an unset MAC header in macsec_encrypt()
dibs: loopback: validate offset and size in move_data()
octeontx2-af: fix VF bringup affecting PF promiscuous state
ethtool: rss: Fix hfunc and input_xfrm parsing on big endian
net/mlx5: Fix L3 tunnel entropy refcount leak
net: macb: drop in-flight Tx SKBs on close
net: mana: Sync page pool RX frags for CPU
net: mana: Validate the packet length reported by the NIC
selftests/net: fix EVP_MD_CTX leak in tcp_mmap
ipvs: ensure inner headers in ICMP errors are in headroom
ipvs: use parsed transport offset in SCTP state lookup
ipvs: use parsed transport offset in TCP state lookup
ipvs: pass parsed transport offset to state handlers
netfilter: handle unreadable frags
netfilter: flowtable: support IPIP tunnel with direct xmit
netfilter: flowtable: IPIP tunnel hardware offload is not yet support
netfilter: flowtable: use dst in this direction when pushing IPIP header
netfilter: ipset: allocate the proper memory for the generic hash structure
netfilter: ipset: cleanup the add/del backlog when resize failed
netfilter: ipset: exclude gc when resize is in progress
...
The pvr_fw_trace_init_mask_ops is not used outside pvr_fw_trace.c
so make it static to avoid the following sparse warning:
drivers/gpu/drm/imagination/pvr_fw_trace.c:74:31: warning: symbol 'pvr_fw_trace_init_mask_ops' was not declared. Should it be static?
Fixes: c6978643ea ("drm/imagination: Validate fw trace group_mask")
Reviewed-by: Alessio Belle <alessio.belle@imgtec.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Link: https://patch.msgid.link/20260703162338.2848039-1-ben.dooks@codethink.co.uk
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
The try_harder contiguous fallback could return a range whose start
offset did not match the caller's min_block_size. When a candidate's
start is misaligned, realign it: free the misaligned run and reallocate
exactly @size at the next lower min_block_size boundary. This keeps the
returned size unchanged with no surplus to trim, and rejects the request
only when no aligned candidate fits.
v2: align misaligned candidates down to min_block_size instead of
bailing out, for both the RHS and LHS paths (Matthew).
Fixes: 0a1844bf0b ("drm/buddy: Improve contiguous memory allocation")
Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Timur Kristóf <timur.kristof@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Tested-by: John Olender <john.olender@gmail.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260709131050.1022759-1-Arunpravin.PaneerSelvam@amd.com
Extend cifs_autodisable_serverino() function to print also text message why
the function was called.
The text message is printed just once for mount then autodisabling
serverino support. Once the serverino support is disabled for mount it will
not be re-enabled. So those text messages do not cause flooding logs.
This change allows to debug issues why cifs.ko decide to turn off server
inode number support and hence disable support for detection of hardlinks.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stack-allocated cifs_open_info_data may contain random data.
This can make some fields have wrong value if they are not set later.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Let SMB2_open() fill the smb2_file_all_info embedded in cifs_open_info_data
directly. This removes the temporary smb2_file_all_info copy in
smb2_open_file().
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
SMB2_open() only fills the fixed fields, so a stack-allocated
smb2_file_all_info is sufficient here.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
smb2_ioctl_query_info() validates the PASSTHRU_FSCTL response payload
before copying it to userspace.
The payload offset and length both come from 32-bit fields. The bounds
check currently adds OutputOffset and qi.input_buffer_length directly, so
the addition can wrap in 32-bit arithmetic before the result is compared
against the response buffer length.
A malicious server can use a large OutputOffset and a small OutputCount
to make the wrapped sum pass the bounds check. The later copy_to_user()
then reads from io_rsp + OutputOffset, outside the response buffer.
Use size_add() for the offset plus length check so overflow is treated as
out of bounds.
Fixes: 2b1116bbe8 ("CIFS: Use common error handling code in smb2_ioctl_query_info()")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
macsec_encrypt() reads the Ethernet header via eth_hdr(skb)
(skb->head + skb->mac_header) to memmove() the 12 source/destination MAC
bytes forward and make room for the SecTAG.
On the AF_PACKET SOCK_RAW + PACKET_QDISC_BYPASS transmit path the skb
reaches the macsec ndo_start_xmit() with the MAC header unset, so
eth_hdr(skb) resolves to skb->head + (u16)~0 and the read is out of
bounds: a 12-byte heap over-read that is also emitted on the wire as the
frame's outer source/destination MAC. KASAN reports a slab-out-of-bounds
read in macsec_start_xmit() on 6.0; on current mainline a CONFIG_DEBUG_NET
build flags it as an unset mac header in skb_mac_header().
On the TX path the L2 header is at skb->data, so use skb_eth_hdr(), added
by commit 96cc4b6958 ("macvlan: do not assume mac_header is set in
macvlan_broadcast()") for exactly this purpose.
Fixes: c09440f7dc ("macsec: introduce IEEE 802.1AE driver")
Cc: stable@vger.kernel.org
Signed-off-by: Daehyeon Ko <4ncienth@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20260703083634.2035145-1-4ncienth@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The loopback move_data() performs a memcpy into the registered DMB
without checking whether offset + size exceeds the DMB length. Unlike
real ISM hardware, which enforces memory region bounds natively, the
software loopback has no such protection.
A peer-supplied out-of-bounds offset or oversized write would result in
an OOB write past the allocated kernel buffer. Add an explicit bounds
check before the memcpy to reject such requests with -EINVAL.
Fixes: f7a22071db ("net/smc: implement DMB-related operations of loopback-ism")
Cc: stable@vger.kernel.org
Reported-by: Federico Kirschbaum <federico.kirschbaum@xbow.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reported-by: Baul Lee <baul.lee@xbow.com>
Link: https://patch.msgid.link/20260707074318.1448662-1-dust.li@linux.alibaba.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When CONFIG_DRM_GPUSVM=n (e.g. um-allyesconfig), the only caller of
xe_pt_svm_userptr_notifier_lock() is compiled out, triggering:
drivers/gpu/drm/xe/xe_pt.c:1418:13: warning:
'xe_pt_svm_userptr_notifier_lock' defined but not used
[-Wunused-function]
The helpers cannot simply be removed in this case: the matching
xe_pt_svm_userptr_notifier_unlock() is also referenced from
xe_pt_update_ops_run(), which lives outside any DRM_GPUSVM ifdef and is
gated only at runtime by pt_update_ops->needs_svm_lock. The symbol must
exist in all builds.
Provide empty static inline stubs for !DRM_GPUSVM, matching the pattern
used by xe_svm_notifier_lock()/_unlock() in xe_svm.h.
Fixes: dca6e08c92 ("drm/xe/userptr: Hold notifier_lock for write on inject test path")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202606302210.QqcLbOEN-lkp@intel.com/
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260630192221.2998168-1-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
(cherry picked from commit 3359422bf0a1140e96d783a19a397686e580a3ca)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
xe_vm_madvise_ioctl() allocates madvise_range.vmas in get_vmas().
After get_vmas() succeeds with at least one VMA, error paths must go
through free_vmas so the array is released before the madvise details are
destroyed.
The L2 flush validation path added for PAT madvise rejects some
SVM/userptr ranges after get_vmas() has succeeded, but jumps directly to
madv_fini. This skips kfree(madvise_range.vmas), leaking the VMA array on
each failed ioctl.
Jump to free_vmas instead, matching the other validation failure paths
after get_vmas() has succeeded.
Fixes: 4f39a194d4 ("drm/xe/xe3p_lpg: Restrict UAPI to enable L2 flush optimization")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260708073422.725186-1-lgs201920130244@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit c3a1c3579b1250060da73507a4acef712974c78a)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
xe_pci.c includes <kunit/test-bug.h> twice, separated only by the
<kunit/test.h> include. Drop the redundant second include; this is a
non-functional cleanup flagged by scripts/checkincludes.pl.
Fixes: 6cad22853c ("drm/xe/kunit: Add stub to read_gmdid")
Signed-off-by: Anas Khan <anxkhn28@gmail.com>
Link: https://patch.msgid.link/20260702112820.34675-1-anxkhn28@gmail.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 84ed5b0a925721aaf069d36e18a99db966ff4e80)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Before arming a user job, xe_exec_ioctl() only added the VM's
dma-resv KERNEL slot as a dependency. That slot covers rebinds and
the kernel operations of the VM's private BOs, but not external BOs
(bo->vm == NULL), which carry their kernel operations (evictions,
moves, ...) in their own dma-resv KERNEL slot.
The DMA_RESV_USAGE_KERNEL slot is the cross-driver contract for
memory management operations that must complete before the BO or its
backing store may be used: any accessor is required to wait on the
KERNEL fences before touching the resv. By skipping the external BOs'
KERNEL slots, the exec path violated that contract and could schedule
a user job while a kernel operation on an external BO mapped by the VM
was still in flight, racing against it and potentially reading or
writing memory that was being moved.
Replace the VM-only dependency with an iteration over every object
locked by the exec, adding each object's KERNEL slot as a job
dependency. This covers the VM resv (rebinds and private BOs) as well
as every external BO, mirroring the drm_gpuvm_resv_add_fence() call
that later publishes the job fence to the same set of objects.
Long-running mode continues to skip this, as before.
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Assisted-by: GitHub_Copilot:claude-opus-4.8
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260702215805.4011228-1-matthew.brost@intel.com
(cherry picked from commit a6b842acf3ddd1efc53a56de9260cfa718fb35e7)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
xe_vm_populate_pgtable() indexed the source PTE array (update->pt_entries)
by the per-call loop counter, assuming each call starts at the first entry
of the update. That holds for the CPU bind path
(xe_migrate_update_pgtables_cpu), which populates a whole update in a single
call, but not for the GPU bind path: write_pgtable() splits an update into
MAX_PTE_PER_SDI (510) sized MI_STORE_DATA_IMM chunks, invoking the populate
callback once per chunk with an advancing qword_ofs but a fresh command-
buffer destination pointer.
As a result, every chunk after the first re-read pt_entries from index 0
instead of from its true offset, so PTEs beyond the first 510 entries of a
single update were programmed with the wrong physical pages, shifting the
mapping by exactly MAX_PTE_PER_SDI pages.
This stayed latent because a single update only exceeds 510 qwords when a
large (e.g. 2M) region is bound as individual 4K PTEs rather than a single
huge-page entry, which happens when the backing store is sufficiently
fragmented. It was surfaced by the BO defrag path, which deliberately
rebinds such fragmented ranges via the GPU bind path, producing
deterministic data corruption offset by 510 pages.
Index pt_entries by the chunk's absolute offset relative to update->ofs so
both the CPU and GPU paths pick the correct entries.
Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Assisted-by: GitHub_Copilot:claude-opus-4.8
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260702012434.3861171-1-matthew.brost@intel.com
(cherry picked from commit e6f2d0b757c4fb577a513c577140109d1d292a9a)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Mbox handling of nix_set_rx_mode for a VF with promiscuous and
all_multi flags set to false causes deletion of the PF's promiscuous
and allmulti MCAM rules. This occurs because the APIs that
enable/disable these rules operate only on the PF, even when the
mbox request is made via a VF interface.
Guard both rvu_npc_enable_allmulti_entry() and
rvu_npc_enable_promisc_entry() disable paths with an is_vf() check so
that a VF bringing up or tearing down its interface cannot inadvertently
clear the PF's MCAM rules.
Fixes: 967db3529e ("octeontx2-af: add support for multicast/promisc packet replication feature")
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Nitin Shetty J <nshettyj@marvell.com>
Link: https://patch.msgid.link/20260702045616.3002773-2-nshettyj@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'nf-26-07-08' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
netfilter: updates for net
The following patchset contains Netfilter fixes for *net*.
Most of these are LLM fixes for old issues flagged by sashiko/LLMs.
Many of these trigger drive-by-findings in sashiko. In particular:
- many load/store tearing and missing memory barriers, races
etc. in ipset, esp. with GC and resizing.
Keeping the proposed patches spinning for yet-another-iteration
keeps legit fixes back, so I prefer to add these now and follow
up with other reports later.
- flowtable work queue still has possible races with teardown,
but same rationale as with ipset: drive-by findings, not
problems coming with the flowtable IPIP changeset in this PR.
- ever since unreadable frag skb support was added in 6.12, we can no
longer do: BUG_ON(skb_copy_bits( ...): it will fire with such skbs.
Mina Almasry is looking at similar patterns elsewhere in the stack.
1) Guard skb->mac_header adjustment after IPv6 defragmentation in
nf_conntrack_reasm. From Xiang Mei.
2) NUL-terminate ebtables table names before calling find_table_lock() to
prevent stack-out-of-bounds reads. Also from Xiang Mei.
3) Zero the ebtables chainstack array, else error unwind may free bogus
pointer when CPU mask is sparse. All three issues date from 2.6 days.
4) Ensure ebtables module names are c-strings, same bug pattern as 2).
Bug added in 4.6.
5) Fix catchall element handling for inverted lookups in nft_lookup. Fold the
catchall lookup into ext before computing the match status. Was like
this ever since catchall elements got introduced in 5.13.
From Tamaki Yanagawa.
6-9) ipset updates from Jozsef Kadlecsik:
- mark rcu protected areas correctly
- address gc and resize clash in the comment extension
- add/del backlog cleanup in the error path
- allocate right size for the generic hash structure
10-12): IPIP flowtable updates from Pablo Neira Ayuso:
- Use the current direction's route when pushing IPIP headers
Fix incorrect headroom and fragmentation offset calculations.
- Avoid hardware offload for IPIP tunnels due to lack of driver support.
- Support IPIP tunnels with direct xmit in netfilter flowtable.
dst_cache and dst_cookie are moved outside the union to share route
state across flows. This is a followup to work done in 6.19 cycle.
13) Don't BUG() on skb_copy_bits error. Handle unreadable fragments by
either returning an error or restricting the copy operations to linear area,
This became an issue when unreable frag support was merged in 6.12.
14-16): IPVS updates from Yizhou Zhao:
- Pass parsed transport offset to IPVS state handlers.
update callback signatures.
- use correct transport header offset on state lookp in TCP.
As-is it was possible for ipv6 extension header data to be
treated as L4 header.
- same for SCTP. This was also broken since 2.6 days.
17) Ensure inner IP headers in ICMP errors are in the skb headroom after
stripping outer headers. Add more checks for the length of inner headers.
This was broken since 3.7 days.
From Julian Anastasov.
netfilter pull request nf-26-07-08
* tag 'nf-26-07-08' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
ipvs: ensure inner headers in ICMP errors are in headroom
ipvs: use parsed transport offset in SCTP state lookup
ipvs: use parsed transport offset in TCP state lookup
ipvs: pass parsed transport offset to state handlers
netfilter: handle unreadable frags
netfilter: flowtable: support IPIP tunnel with direct xmit
netfilter: flowtable: IPIP tunnel hardware offload is not yet support
netfilter: flowtable: use dst in this direction when pushing IPIP header
netfilter: ipset: allocate the proper memory for the generic hash structure
netfilter: ipset: cleanup the add/del backlog when resize failed
netfilter: ipset: exclude gc when resize is in progress
netfilter: ipset: mark the rcu locked areas properly
netfilter: nft_lookup: fix catchall element handling with inverted lookups
netfilter: ebtables: module names must be null-terminated
netfilter: ebtables: zero chainstack array
netfilter: ebtables: terminate table name before find_table_lock()
netfilter: nf_conntrack_reasm: guard mac_header adjustment after IPv6 defrag
====================
Link: https://patch.msgid.link/20260708140309.19633-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
ETHTOOL_A_RSS_HFUNC and ETHTOOL_A_RSS_INPUT_XFRM are NLA_U32 attributes,
but ethnl_rss_set() and ethnl_rss_create_doit() parse them with
ethnl_update_u8(), which reads a single byte.
On little endian this happens to read the least significant byte and
works as long as the value fits in a byte. On big endian it reads the
most significant byte, so the requested value is parsed incorrectly.
The destination fields in struct ethtool_rxfh_param are u8, so the
attribute can't be read directly with ethnl_update_u32().
Cap the hfunc policy at U8_MAX so an out of range value is rejected
instead of being silently truncated into the u8 field, and add
ethnl_update_u8_u32() to read the full u32 and narrow it into the u8
destination.
Fixes: 82ae67cbc4 ("ethtool: rss: support setting hfunc via Netlink")
Fixes: d3e2c7bab1 ("ethtool: rss: support setting input-xfrm via Netlink")
Fixes: a166ab7816 ("ethtool: rss: support creating contexts via Netlink")
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20260706055017.3355806-1-gal@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
mlx5_tun_entropy_refcount_inc() counts both VXLAN and L2-to-L3
tunnel reformat entries as entropy-enabling users. The matching
decrement path only handled VXLAN, leaving L2-to-L3 tunnel entries
counted after release.
Handle MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL in
mlx5_tun_entropy_refcount_dec() as well so the enabling entry
refcount remains balanced.
Fixes: f828ca6a2f ("net/mlx5e: Add support for hw encapsulation of MPLS over UDP")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260703141423.1723-1-lirongqing@baidu.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The MACB driver has since forever leaked the outgoing SKBs that
have not yet been marked as completed. They live in queue->tx_skb
which gets freed without remorse nor checking.
macb_free_consistent() gets called in a few codepaths, but only close will
trigger the added expressions. In macb_open() and macb_alloc_consistent()
failure cases, queues' tx_skb just got allocated and are empty.
Fixes: 89e5785fc8 ("[PATCH] Atmel MACB ethernet driver")
Cc: stable@vger.kernel.org
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://patch.msgid.link/20260702-macb-drop-tx-v4-1-1c833eebdbc8@bootlin.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Dexuan Cui says:
====================
Fix MANA RX with bounce buffering
With swiotlb=force, the MANA NIC fails to work properly due to commit
730ff06d3f ("net: mana: Use page pool fragments for RX buffers instead
of full pages to improve memory efficiency.").
This happens because, with the standard MTU=1500, the aforementioned
commit uses page pool frags with PP_FLAG_DMA_MAP, but fails to call
page_pool_dma_sync_for_cpu() to sync the received packet for CPU acces
before handing the RX buffer to the stack.
Here patch #2 adds the required page_pool_dma_sync_for_cpu().
Patch #1 validates the packet length reported by the NIC. With patch #2,
page_pool_dma_sync_for_cpu() uses the packet length, so we don't want
to blindly trust the packet length, just in case.
There is no change between v2 and v3.
v3 just swaps the order of the 2 patches in v2, as suggested by Simon [3].
References:
[1] v1: https://lore.kernel.org/netdev/20260618035029.249361-1-decui@microsoft.com/
[2] v2: https://lore.kernel.org/netdev/20260624222605.1794719-1-decui@microsoft.com/
[3] https://lore.kernel.org/netdev/20260626145048.GB1310988@horms.kernel.org/
====================
Link: https://patch.msgid.link/20260702041237.617719-1-decui@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
MANA allocates RX buffers from page pool fragments when frag_count is
greater than 1. In that case the buffers remain DMA mapped by page pool
and the RX completion path does not call dma_unmap_single(). As a result,
the implicit sync-for-CPU normally performed by dma_unmap_single() is
missing before the packet data is passed to the networking stack.
This breaks RX on configurations which require explicit DMA syncing, for
example when booted with swiotlb=force.
Fix this by recording the page pool page and DMA sync offset when the RX
buffer is allocated, and syncing the received packet range for CPU access
before handing the RX buffer to the stack.
Fixes: 730ff06d3f ("net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency.")
Cc: stable@vger.kernel.org
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Link: https://patch.msgid.link/20260702041237.617719-3-decui@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Validate the packet length reported in the RX CQE before passing it
to skb processing. The CQE is supplied by the NIC device and should
not be blindly trusted.
Cc: stable@vger.kernel.org
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Fixes: ca9c54d2d6 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)")
Link: https://patch.msgid.link/20260702041237.617719-2-decui@microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In tcp_mmap.c, both child_thread() and main() allocate an EVP_MD_CTX
via EVP_MD_CTX_new() when integrity checking is enabled, but neither
function releases the context. child_thread() misses the free in its
common cleanup block, and main() returns without freeing the context.
This results in a SHA256 context leak on every run that uses the
‑i (integrity) option. Add the missing EVP_MD_CTX_free() calls to
the appropriate cleanup paths to fix the leak.
Fixes: 5c5945dc69 ("selftests/net: Add SHA256 computation over data sent in tcp_mmap")
Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
Link: https://patch.msgid.link/20260702025949.442523-1-wangyan01@kylinos.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Only synchronize fbdev output to the vblank of an active CRTC. Go over
the list of CRTCs and pick the first that matches. Fixes warnings as
the one shown below
[ 77.201354] WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x194/0x1cc [drm], CPU#1: kworker/1:7/1867
[ 77.201354] omapdrm omapdrm.0: [drm] vblank wait timed out on crtc 0
This currently happens if the fbdev output is not on CRTC 0.
Atomic and non-atomic drivers require distinct code paths. As for other
fbdev operations, implement both and select the correct one at runtime.
Not finding an active CRTC is not a bug. Do not wait in this case, but
flush the display update as before.
v4:
- avoid possible deadlocks with locking context (Sashiko)
v3:
- drop excessive state validation (Jani)
- acquire plane and CRTC mutices (Sashiko)
v2:
- move look-up code into separate helper
- support drivers with legacy modesetting
v1:
- see https://lore.kernel.org/dri-devel/1c9e0e24-9c4a-4259-8700-cf9e5fd60ca3@suse.de/
Co-authored-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: d8c4bddcd8 ("drm/fb-helper: Synchronize dirty worker with vblank")
Tested-by: Icenowy Zheng <zhengxingda@iscas.ac.cn>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Closes: https://bugs.debian.org/1138033
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260702145021.226932-1-tzimmermann@suse.de
Commit c68337442f ("cifs: Fix busy dentry used after unmounting") fixed
the issue in cifs where deferred close of a file led to a dentry reference
count not being released in umount, by flushing deferredclose_wq in
cifs_kill_sb() to solve it.
However, the cifs DIO path suffers from the same busy-dentry problem caused
by a delayed dentry reference-count release:
[dio] [cifsd] [close + umount]
netfs_unbuffered_write_iter_locked
...
cifs_demultiplex_thread
netfs_unbuffered_write
cifs_issue_write
netfs_wait_for_in_progress_stream [1]
...
netfs_write_subrequest_terminated
netfs_subreq_clear_in_progress
netfs_wake_collector // wake [1]
netfs_put_subrequest
netfs_put_request
queue_work(system_dfl_wq, xxx) [2]
// dio write return cifs_close
_cifsFileInfo_put
// cfile->count 2->1
--cfile->count [3]
// umount
cifs_kill_sb
kill_anon_super
// warning triggered!
shrink_dcache_for_umount [4]
[system_dfl_wq] [5]
netfs_free_request
...
_cifsFileInfo_put
// cfile->count 1->0
--cfile->count
queue_work(fileinfo_put_wq, xxx)
[fileinfo_put_wq] [6]
cifsFileInfo_put_work
cifsFileInfo_put_final
dput
If the umount path is triggered before [5], it results warning:
BUG: Dentry 00000000eab1f070{i=9a917b66ae404fec,n=test} still in use (1)
[unmount of cifs cifs]
The existing per-inode ictx->io_count wait in cifs_evict_inode() does not
help: it lives in the inode eviction path, which runs after
shrink_dcache_for_umount() has already warned about the busy dentries.
Fix it by adding a per-superblock outstanding-rreq counter that is
incremented in cifs_init_request() and decremented in cifs_free_request().
In cifs_kill_sb(), before kill_anon_super(), wait for this counter to reach
0 - which guarantees that all cleanup_work for this sb have run and thus
all relevant cfile puts are queued on fileinfo_put_wq or serverclose_wq.
Then drain the workqueue so the dentry refs are dropped.
This is a targeted wait, not a flush of the system-wide system_dfl_wq.
Fixes: 340cea84f6 ("cifs: open files should not hold ref on superblock")
Signed-off-by: Zizhi Wo <wozizhi@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
SFU fifos are natively supported (created and recognized) at least by:
- Microsoft POSIX subsystem
- OpenNT/Interix subsystem
- Microsoft SFU (Windows Services for UNIX)
- Microsoft SUA (Subsystem for UNIX-based Applications)
- Windows NFS server (up to the Windows Server 2008 R2)
Windows NFS server since Windows Server 2012 uses new reparse point format
for storing new fifos, but still can recognize this old format (also in the
latest Windows Server 2022 version).
SFU-style fifo is empty regular file which has system attribute set.
These SFU-style fifos are already recognized by Linux SMB client.
But Linux SMB client is currently creating new SFU fifos in different
format which is not compatible with all those SFU-style consumers. Fix this
by creating new fifos in correct SFU format which would be recognized by
all those applications and also by existing Linux SMB clients.
This change affects only creating new fifos when mount option -o sfu is used.
Signed-off-by: Pali Rohár <pali@kernel.org>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
SFU sockets are natively supported by Interix 3.0 subsystem and also by
later versions. It is part of Microsoft SFU (Windows Services for UNIX) and
Microsoft SUA (Subsystem for UNIX-based Applications). They can be created
and existing (stored on local disk or remote SMB share) can be recognized.
SFU sockets are recognized also by NFS server included in Windows Server.
Windows NFS server versions since Windows Server 2012 uses new reparse
point format for storing new sockets, but still can recognize this old
format (also in the latest Windows Server 2022 version).
SFU-style socket is a regular file which has system attribute set and
content of the file is one zero byte.
These SFU-style sockets are already recognized by Linux SMB client.
But Linux SMB client is currently creating new SFU socket in different
format which is not compatible with all those SFU applications. Fix this by
creating new sockets in correct SFU format which would be recognized by all
SFU, SUA, NFS and existing Linux SMB clients.
This change affects only creating new sockets when mount option -o sfu is used.
Signed-off-by: Pali Rohár <pali@kernel.org>
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
cifs_rreq_done() updates the inode atime to current_time(inode) after a
netfs read. It then preserves the CIFS rule that atime should not be
older than mtime, because some applications break if atime is less than
mtime. That rule only requires clamping when atime < mtime.
The current check uses the raw non-zero result of timespec64_compare().
It therefore takes the clamp path for both atime < mtime and
atime > mtime. The latter is the normal case when reading an older file:
the newly recorded atime is newer than the file mtime. The completion
handler then immediately moves atime back to mtime, losing the access
time that was just recorded. Userspace tools that rely on atime, such as
stat, find -atime, backup tools or cold-data classifiers, can therefore
see a recently read CIFS file as not recently accessed.
This is easy to miss because the bug is silent: read I/O still succeeds,
no error is reported, and many systems either do not check atime after
reads or mount with policies such as relatime/noatime. It becomes
visible when a CIFS file has an mtime older than the current time, the
file is read, and the local inode atime is inspected before a later
revalidation replaces the cached timestamps.
Clamp only when atime is actually older than mtime. This matches the
same atime/mtime rule used when applying CIFS inode attributes.
Fixes: 69c3c023af ("cifs: Implement netfslib hooks")
Cc: stable@vger.kernel.org
Signed-off-by: Xu Rao <raoxu@uniontech.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
We weren't checking whether the values provided in the private
data in kfd CRIU restore were within bounds.
For queue type, add a KFD_QUEUE_TYPE_MAX and ensure the provided
type is less than it.
For mqd_size, add new function mqd_size_from_queue_type and confirm
that the provided mqd_size matches expectations.
Reviewed-by: David Yat Sin <david.yatsin@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f19d8086f6644083c913d70bfdeee20e1b6f46a5)
Cc: stable@vger.kernel.org
