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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
Pull PCMCIA fixes and cleanups from Dominik Brodowski:
"A number of minor PCMCIA bugfixes and cleanups, including the removal
of unused code paths"
[ Dominik suggested this might be 6.18 material, but having looked
through this, it looks appropriate early: minor trivial fixes and then
one slightly bigger patch that removes dead code - Linus ]
* tag 'pcmcia-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux:
pcmcia: Add error handling for add_interval() in do_validate_mem()
pcmcia: cs: Remove unused pcmcia_get_socket_by_nr
pcmcia: omap: Add missing check for platform_get_resource
pcmcia: Use str_off_on() and str_yes_no() helpers
pcmcia: remove PCCARD_IODYN
pcmcia: ds: Emphasize "really" epizeuxis
pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region()
pcmcia: omap_cf: Mark driver struct with __refdata to prevent section mismatch
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Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:
Just some minor SDCA bug fixes and some minor structure reordering to
improve the padding.
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, wireless and Bluetooth.
We're reverting the removal of a Sundance driver, a user has appeared.
This makes the PR rather large in terms of LoC.
There's a conspicuous absence of real, user-reported 6.17 issues.
Slightly worried that the summer distracted people from testing.
Previous releases - regressions:
- ax25: properly unshare skbs in ax25_kiss_rcv()
Previous releases - always broken:
- phylink: disable autoneg for interfaces that have no inband, fix
regression on pcs-lynx (NXP LS1088)
- vxlan: fix null-deref when using nexthop objects
- batman-adv: fix OOB read/write in network-coding decode
- icmp: icmp_ndo_send: fix reversing address translation for replies
- tcp: fix socket ref leak in TCP-AO failure handling for IPv6
- mctp:
- mctp_fraq_queue should take ownership of passed skb
- usb: initialise mac header in RX path, avoid WARN
- wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
respect device limitations
- wifi: wilc1000: avoid buffer overflow in WID string configuration
- wifi: mt76:
- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- fix multiple wcid linked list corruption issues
- mt7921: don't disconnect when AP requests switch to a channel
which requires radar detection
- mt7925u: use connac3 tx aggr check in tx complete
- wifi: intel:
- improve validation of ACPI DSM data
- cfg: restore some 1000 series configs
- wifi: ath:
- ath11k: a fix for GTK rekeying
- ath12k: a missed WiFi7 capability (multi-link EMLSR)
- eth: intel:
- ice: fix races in "low latency" firmware interface for Tx timestamps
- idpf: set mac type when adding and removing MAC filters
- i40e: remove racy read access to some debugfs files
Misc:
- Revert "eth: remove the DLink/Sundance (ST201) driver"
- netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid
confusing modprobe"
* tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
phy: mscc: Stop taking ts_lock for tx_queue and use its own lock
selftest: net: Fix weird setsockopt() in bind_bhash.c.
MAINTAINERS: add Sabrina to TLS maintainers
gve: update MAINTAINERS
ppp: fix memory leak in pad_compress_skb
net: xilinx: axienet: Add error handling for RX metadata pointer retrieval
net: atm: fix memory leak in atm_register_sysfs when device_register fail
netfilter: nf_tables: Introduce NFTA_DEVICE_PREFIX
selftests: netfilter: fix udpclash tool hang
ax25: properly unshare skbs in ax25_kiss_rcv()
mctp: return -ENOPROTOOPT for unknown getsockopt options
net/smc: Remove validation of reserved bits in CLC Decline message
ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
net: thunder_bgx: decrement cleanup index before use
net: thunder_bgx: add a missing of_node_put
net: phylink: move PHY interrupt request to non-fail path
net: lockless sock_i_ino()
tools: ynl-gen: fix nested array counting
wifi: wilc1000: avoid buffer overflow in WID string configuration
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
...
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Remove some padding holes in the sdca_entity_hide struct by reordering
the members.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Message-ID: <20250820163717.1095846-4-ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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This new attribute is supposed to be used instead of NFTA_DEVICE_NAME
for simple wildcard interface specs. It holds a NUL-terminated string
representing an interface name prefix to match on.
While kernel code to distinguish full names from prefixes in
NFTA_DEVICE_NAME is simpler than this solution, reusing the existing
attribute with different semantics leads to confusion between different
versions of kernel and user space though:
* With old kernels, wildcards submitted by user space are accepted yet
silently treated as regular names.
* With old user space, wildcards submitted by kernel may cause crashes
since libnftnl expects NUL-termination when there is none.
Using a distinct attribute type sanitizes these situations as the
receiving part detects and rejects the unexpected attribute nested in
*_HOOK_DEVS attributes.
Fixes: 6d07a289504a ("netfilter: nf_tables: Support wildcard netdev hook specs")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Followup of commit c51da3f7a161 ("net: remove sock_i_uid()")
A recent syzbot report was the trigger for this change.
Over the years, we had many problems caused by the
read_lock[_bh](&sk->sk_callback_lock) in sock_i_uid().
We could fix smc_diag_dump_proto() or make a more radical move:
Instead of waiting for new syzbot reports, cache the socket
inode number in sk->sk_ino, so that we no longer
need to acquire sk->sk_callback_lock in sock_i_ino().
This makes socket dumps faster (one less cache line miss,
and two atomic ops avoided).
Prior art:
commit 25a9c8a4431c ("netlink: Add __sock_i_ino() for __netlink_diag_dump().")
commit 4f9bf2a2f5aa ("tcp: Don't acquire inet_listen_hashbucket::lock with disabled BH.")
commit efc3dbc37412 ("rds: Make rds_sock_lock BH rather than IRQ safe.")
Fixes: d2d6422f8bd1 ("x86: Allow to enable PREEMPT_RT.")
Reported-by: syzbot+50603c05bbdf4dfdaffa@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/68b73804.050a0220.3db4df.01d8.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20250902183603.740428-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The call to __iter_div_u64_rem() in vdso_time_update_aux() is a wrapper
around subtraction. It cannot be used to divide large numbers, as that
introduces long, computationally expensive delays. A regular u64 division
is also not possible in the timekeeper update path as it can be too slow.
Instead of splitting the ktime_t offset into into second and subsecond
components during the timekeeper update fast-path, do it together with the
adjustment of tk->offs_aux in the slow-path. Equivalent to the handling of
offs_boot and monotonic_to_boot.
Reuse the storage of monotonic_to_boot for the new field, as it is not used
by auxiliary timekeepers.
Fixes: 380b84e168e5 ("vdso/vsyscall: Update auxiliary clock data in the datapage")
Reported-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250825-vdso-auxclock-division-v1-1-a1d32a16a313@linutronix.de
Closes: https://lore.kernel.org/lkml/aKwsNNWsHJg8IKzj@localhost/
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Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/E1uslwn-00000001SOx-0a7H@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 13 are cc:stable and the remainder address post-6.16
issues or aren't considered necessary for -stable kernels. 11 of these
fixes are for MM.
This includes a three-patch series from Harry Yoo which fixes an
intermittent boot failure which can occur on x86 systems. And a
two-patch series from Alexander Gordeev which fixes a KASAN crash on
S390 systems"
* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: fix possible deadlock in kmemleak
x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
mm: introduce and use {pgd,p4d}_populate_kernel()
mm: move page table sync declarations to linux/pgtable.h
proc: fix missing pde_set_flags() for net proc files
mm: fix accounting of memmap pages
mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
kexec: add KEXEC_FILE_NO_CMA as a legal flag
kasan: fix GCC mem-intrinsic prefix with sw tags
mm/kasan: avoid lazy MMU mode hazards
mm/kasan: fix vmalloc shadow memory (de-)population races
kunit: kasan_test: disable fortify string checker on kasan_strings() test
selftests/mm: fix FORCE_READ to read input value correctly
mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
ocfs2: prevent release journal inode after journal shutdown
rust: mm: mark VmaNew as transparent
of_numa: fix uninitialized memory nodes causing kernel panic
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Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:
Minor bug fixes for a couple of older devices reported by some users.
Mostly this centers around the automatic PLL configuration getting the
wrong values due to rounding.
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Certain systems have CS42L43 DisCo that claims to conform to version 0.6.28
but uses the function types from the 1.0 spec. Add a quirk as a workaround.
Closes: https://github.com/thesofproject/linux/issues/5515
Cc: stable@vger.kernel.org
Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20250901151518.3197941-1-mstrozek@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse into vfs.fixes
fuse fixes for 6.17-rc5
* tag 'fuse-fixes-6.17-rc5' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (6 commits)
fuse: Block access to folio overlimit
fuse: fix fuseblk i_blkbits for iomap partial writes
fuse: reflect cached blocksize if blocksize was changed
fuse: prevent overflow in copy_file_range return value
fuse: check if copy_file_range() returns larger than requested size
fuse: do not allow mapping a non-regular backing file
Link: https://lore.kernel.org/CAJfpeguEVMMyw_zCb+hbOuSxdE2Z3Raw=SJsq=Y56Ae6dn2W3g@mail.gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Pull drm fixes from Dave Airlie:
"Weekly fixes, feels a bit big.
The major piece is msm fixes, then the usual amdgpu/xe along with some
mediatek and nouveau fixes and a tegra revert.
gpuvm:
- fix some typos
xe:
- Fix user-fence race issue
- Couple xe_vm fixes
- Don't trigger rebind on initial dma-buf validation
- Fix a build issue related to basename() posix vs gnu discrepancy
amdgpu:
- pin buffers while vmapping
- UserQ fixes
- Revert CSA fix
- SR-IOV fix
nouveau:
- fix linear modifier
- remove some dead code
msm:
- Core/GPU:
- fix comment doc warning in gpuvm
- fix build with KMS disabled
- fix pgtable setup/teardown race
- global fault counter fix
- various error path fixes
- GPU devcoredump snapshot fixes
- handle in-place VM_BIND remaps to solve turnip vm update race
- skip re-emitting IBs for unusable VMs
- Don't use %pK through printk
- moved display snapshot init earlier, fixing a crash
- DPU:
- Fixed crash in virtual plane checking code
- Fixed mode comparison in virtual plane checking code
- DSI:
- Adjusted width of resulution-related registers
- Fixed locking issue on 14nm PLLs
- UBWC (per Bjorn's ack)
- Added UBWC configuration for several missing platforms (fixing
regression)
mediatek:
- Add error handling for old state CRTC in atomic_disable
- Fix DSI host and panel bridge pre-enable order
- Fix device/node reference count leaks in mtk_drm_get_all_drm_priv
- mtk_hdmi: Fix inverted parameters in some regmap_update_bits calls
tegra:
- revert dma-buf change"
* tag 'drm-fixes-2025-08-29' of https://gitlab.freedesktop.org/drm/kernel: (56 commits)
drm/mediatek: mtk_hdmi: Fix inverted parameters in some regmap_update_bits calls
drm/amdgpu/userq: fix error handling of invalid doorbell
drm/amdgpu: update firmware version checks for user queue support
drm/amd/amdgpu: disable hwmon power1_cap* for gfx 11.0.3 on vf mode
Revert "drm/amdgpu: fix incorrect vm flags to map bo"
drm/amdgpu/gfx12: set MQD as appriopriate for queue types
drm/amdgpu/gfx11: set MQD as appriopriate for queue types
drm/xe: switch to local xbasename() helper
drm/xe: Don't trigger rebind on initial dma-buf validation
drm/xe/vm: Clear the scratch_pt pointer on error
drm/xe/vm: Don't pin the vm_resv during validation
drm/xe/xe_sync: avoid race during ufence signaling
Revert "drm/tegra: Use dma_buf from GEM object instance"
soc: qcom: use no-UBWC config for MSM8956/76
soc: qcom: add configuration for MSM8929
soc: qcom: ubwc: add more missing platforms
soc: qcom: ubwc: use no-uwbc config for MSM8917
drm/msm/dpu: Add a null ptr check for dpu_encoder_needs_modeset
dt-bindings: display/msm: qcom,mdp5: drop lut clock
drm/gpuvm: fix various typos in .c and .h gpuvm file
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from Bluetooth.
Current release - regressions:
- ipv4: fix regression in local-broadcast routes
- vsock: fix error-handling regression introduced in v6.17-rc1
Previous releases - regressions:
- bluetooth:
- mark connection as closed during suspend disconnect
- fix set_local_name race condition
- eth:
- ice: fix NULL pointer dereference on reset
- mlx5: fix memory leak in hws_pool_buddy_init error path
- bnxt_en: fix stats context reservation logic
- hv: fix loss of receive events from host during channel open
Previous releases - always broken:
- page_pool: fix incorrect mp_ops error handling
- sctp: initialize more fields in sctp_v6_from_sk()
- eth:
- octeontx2-vf: fix max packet length errors
- idpf: fix Tx flow scheduling to avoid Tx timeouts
- bnxt_en: fix memory corruption during ifdown
- ice: fix incorrect counter for buffer allocation failures
- mlx5: fix lockdep assertion on sync reset unload event
- fbnic: fixup rtnl_lock and devl_lock handling
- xgmac: do not enable RX FIFO overflow interrupts
- phy: mscc: fix when PTP clock is register and unregister
Misc:
- add Telit Cinterion LE910C4-WWX new compositions"
* tag 'net-6.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (60 commits)
net: ipv4: fix regression in local-broadcast routes
net: macb: Disable clocks once
fbnic: Move phylink resume out of service_task and into open/close
fbnic: Fixup rtnl_lock and devl_lock handling related to mailbox code
net: rose: fix a typo in rose_clear_routes()
l2tp: do not use sock_hold() in pppol2tp_session_get_sock()
sctp: initialize more fields in sctp_v6_from_sk()
MAINTAINERS: rmnet: Update email addresses
net: rose: include node references in rose_neigh refcount
net: rose: convert 'use' field to refcount_t
net: rose: split remove and free operations in rose_remove_neigh()
net: hv_netvsc: fix loss of early receive events from host during channel open.
net: stmmac: Set CIC bit only for TX queues with COE
net: stmmac: xgmac: Correct supported speed modes
net: stmmac: xgmac: Do not enable RX FIFO Overflow interrupts
net/mlx5e: Set local Xoff after FW update
net/mlx5e: Update and set Xon/Xoff upon port speed set
net/mlx5e: Update and set Xon/Xoff upon MTU set
net/mlx5: Prevent flow steering mode changes in switchdev mode
net/mlx5: Nack sync reset when SFs are present
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fixes from Marek Szyprowski:
- another small fix for arm64 systems with memory encryption (Shanker
Donthineni)
- fix for arm32 systems with non-standard CMA configuration (Oreoluwa
Babatunde)
* tag 'dma-mapping-6.17-2025-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted
of: reserved_mem: Restructure call site for dma_contiguous_early_fixup()
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fixes from Mike Rapoport:
- printk cleanups in memblock and numa_memblks
- update kernel-doc for MEMBLOCK_RSRV_NOINIT to be more accurate and
detailed
* tag 'fixes-2025-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: fix kernel-doc for MEMBLOCK_RSRV_NOINIT
mm: numa,memblock: Use SZ_1M macro to denote bytes to MB conversion
mm/numa_memblks: Use pr_debug instead of printk(KERN_DEBUG)
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Several nouveau fixes to remove unused code, fix an error path and be
less restrictive with the formats it accepts. A fix for amdgpu to pin
vmapped dma-buf, and a revert for tegra for a regression in the dma-buf
/ GEM code.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://lore.kernel.org/r/20250828-hypersonic-colorful-squirrel-64f04b@houat
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Introduce and use {pgd,p4d}_populate_kernel() in core MM code when
populating PGD and P4D entries for the kernel address space. These
helpers ensure proper synchronization of page tables when updating the
kernel portion of top-level page tables.
Until now, the kernel has relied on each architecture to handle
synchronization of top-level page tables in an ad-hoc manner. For
example, see commit 9b861528a801 ("x86-64, mem: Update all PGDs for direct
mapping and vmemmap mapping changes").
However, this approach has proven fragile for following reasons:
1) It is easy to forget to perform the necessary page table
synchronization when introducing new changes.
For instance, commit 4917f55b4ef9 ("mm/sparse-vmemmap: improve memory
savings for compound devmaps") overlooked the need to synchronize
page tables for the vmemmap area.
2) It is also easy to overlook that the vmemmap and direct mapping areas
must not be accessed before explicit page table synchronization.
For example, commit 8d400913c231 ("x86/vmemmap: handle unpopulated
sub-pmd ranges")) caused crashes by accessing the vmemmap area
before calling sync_global_pgds().
To address this, as suggested by Dave Hansen, introduce _kernel() variants
of the page table population helpers, which invoke architecture-specific
hooks to properly synchronize page tables. These are introduced in a new
header file, include/linux/pgalloc.h, so they can be called from common
code.
They reuse existing infrastructure for vmalloc and ioremap.
Synchronization requirements are determined by ARCH_PAGE_TABLE_SYNC_MASK,
and the actual synchronization is performed by
arch_sync_kernel_mappings().
This change currently targets only x86_64, so only PGD and P4D level
helpers are introduced. Currently, these helpers are no-ops since no
architecture sets PGTBL_{PGD,P4D}_MODIFIED in ARCH_PAGE_TABLE_SYNC_MASK.
In theory, PUD and PMD level helpers can be added later if needed by other
architectures. For now, 32-bit architectures (x86-32 and arm) only handle
PGTBL_PMD_MODIFIED, so p*d_populate_kernel() will never affect them unless
we introduce a PMD level helper.
[harry.yoo@oracle.com: fix KASAN build error due to p*d_populate_kernel()]
Link: https://lkml.kernel.org/r/20250822020727.202749-1-harry.yoo@oracle.com
Link: https://lkml.kernel.org/r/20250818020206.4517-3-harry.yoo@oracle.com
Fixes: 8d400913c231 ("x86/vmemmap: handle unpopulated sub-pmd ranges")
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Kiryl Shutsemau <kas@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: bibo mao <maobibo@loongson.cn>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Christoph Lameter (Ampere) <cl@gentwo.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Thomas Huth <thuth@redhat.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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During our internal testing, we started observing intermittent boot
failures when the machine uses 4-level paging and has a large amount of
persistent memory:
BUG: unable to handle page fault for address: ffffe70000000034
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0
Oops: 0002 [#1] SMP NOPTI
RIP: 0010:__init_single_page+0x9/0x6d
Call Trace:
<TASK>
__init_zone_device_page+0x17/0x5d
memmap_init_zone_device+0x154/0x1bb
pagemap_range+0x2e0/0x40f
memremap_pages+0x10b/0x2f0
devm_memremap_pages+0x1e/0x60
dev_dax_probe+0xce/0x2ec [device_dax]
dax_bus_probe+0x6d/0xc9
[... snip ...]
</TASK>
It turns out that the kernel panics while initializing vmemmap (struct
page array) when the vmemmap region spans two PGD entries, because the new
PGD entry is only installed in init_mm.pgd, but not in the page tables of
other tasks.
And looking at __populate_section_memmap():
if (vmemmap_can_optimize(altmap, pgmap))
// does not sync top level page tables
r = vmemmap_populate_compound_pages(pfn, start, end, nid, pgmap);
else
// sync top level page tables in x86
r = vmemmap_populate(start, end, nid, altmap);
In the normal path, vmemmap_populate() in arch/x86/mm/init_64.c
synchronizes the top level page table (See commit 9b861528a801 ("x86-64,
mem: Update all PGDs for direct mapping and vmemmap mapping changes")) so
that all tasks in the system can see the new vmemmap area.
However, when vmemmap_can_optimize() returns true, the optimized path
skips synchronization of top-level page tables. This is because
vmemmap_populate_compound_pages() is implemented in core MM code, which
does not handle synchronization of the top-level page tables. Instead,
the core MM has historically relied on each architecture to perform this
synchronization manually.
We're not the first party to encounter a crash caused by not-sync'd top
level page tables: earlier this year, Gwan-gyeong Mun attempted to address
the issue [1] [2] after hitting a kernel panic when x86 code accessed the
vmemmap area before the corresponding top-level entries were synced. At
that time, the issue was believed to be triggered only when struct page
was enlarged for debugging purposes, and the patch did not get further
updates.
It turns out that current approach of relying on each arch to handle the
page table sync manually is fragile because 1) it's easy to forget to sync
the top level page table, and 2) it's also easy to overlook that the
kernel should not access the vmemmap and direct mapping areas before the
sync.
# The solution: Make page table sync more code robust and harder to miss
To address this, Dave Hansen suggested [3] [4] introducing
{pgd,p4d}_populate_kernel() for updating kernel portion of the page tables
and allow each architecture to explicitly perform synchronization when
installing top-level entries. With this approach, we no longer need to
worry about missing the sync step, reducing the risk of future
regressions.
The new interface reuses existing ARCH_PAGE_TABLE_SYNC_MASK,
PGTBL_P*D_MODIFIED and arch_sync_kernel_mappings() facility used by
vmalloc and ioremap to synchronize page tables.
pgd_populate_kernel() looks like this:
static inline void pgd_populate_kernel(unsigned long addr, pgd_t *pgd,
p4d_t *p4d)
{
pgd_populate(&init_mm, pgd, p4d);
if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_PGD_MODIFIED)
arch_sync_kernel_mappings(addr, addr);
}
It is worth noting that vmalloc() and apply_to_range() carefully
synchronizes page tables by calling p*d_alloc_track() and
arch_sync_kernel_mappings(), and thus they are not affected by this patch
series.
This series was hugely inspired by Dave Hansen's suggestion and hence
added Suggested-by: Dave Hansen.
Cc stable because lack of this series opens the door to intermittent
boot failures.
This patch (of 3):
Move ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() to
linux/pgtable.h so that they can be used outside of vmalloc and ioremap.
Link: https://lkml.kernel.org/r/20250818020206.4517-1-harry.yoo@oracle.com
Link: https://lkml.kernel.org/r/20250818020206.4517-2-harry.yoo@oracle.com
Link: https://lore.kernel.org/linux-mm/20250220064105.808339-1-gwan-gyeong.mun@intel.com [1]
Link: https://lore.kernel.org/linux-mm/20250311114420.240341-1-gwan-gyeong.mun@intel.com [2]
Link: https://lore.kernel.org/linux-mm/d1da214c-53d3-45ac-a8b6-51821c5416e4@intel.com [3]
Link: https://lore.kernel.org/linux-mm/4d800744-7b88-41aa-9979-b245e8bf794b@intel.com [4]
Fixes: 8d400913c231 ("x86/vmemmap: handle unpopulated sub-pmd ranges")
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Acked-by: Kiryl Shutsemau <kas@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: bibo mao <maobibo@loongson.cn>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Christoph Lameter (Ampere) <cl@gentwo.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Commit 07d24902977e ("kexec: enable CMA based contiguous allocation")
introduces logic to use CMA-based allocation in kexec by default. As part
of the changes, it introduces a kexec_file_load flag to disable the use of
CMA allocations from userspace. However, this flag is broken since it is
missing from the list of legal flags for kexec_file_load. kexec_file_load
returns EINVAL when attempting to use the flag.
Fix this by adding the KEXEC_FILE_NO_CMA flag to the list of legal flags
for kexec_file_load.
Without this fix, kexec_file_load syscall will failed and return
'-EINVAL' when KEXEC_FILE_NO_CMA is specified.
Link: https://lkml.kernel.org/r/20250805211527.122367-2-makb@juniper.net
Fixes: 07d24902977e ("kexec: enable CMA based contiguous allocation")
Signed-off-by: Brian Mak <makb@juniper.net>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Dave Young <dyoung@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Saravana Kannan <saravanak@google.com>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
Pull virtio/vhost fixes from Michael Tsirkin:
"More small fixes. Most notably this fixes a messed up ioctl number,
and a regression in shmem affecting drm users"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_net: adjust the execution order of function `virtnet_close` during freeze
virtio_input: Improve freeze handling
vhost: Fix ioctl # for VHOST_[GS]ET_FORK_FROM_OWNER
Revert "virtio: reject shm region if length is zero"
vhost/net: Protect ubufs with rcu read lock in vhost_net_ubuf_put()
virtio_pci: Fix misleading comment for queue vector
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- drop the redundant pm_runtime_mark_last_busy() in rkvdec
- fix probing error handling in rkvdec
- fix an issue affecting lt6911uxe/lt6911uxc related to CSI-2 GPIO pins
in int3472
* tag 'media/v6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: Remove redundant pm_runtime_mark_last_busy() calls
platform/x86: int3472: add hpd pin support
media: rkvdec: Remove redundant pm_runtime_mark_last_busy() calls
media: rkvdec: Fix an error handling path in rkvdec_probe()
media: rkvdec: Fix a NULL vs IS_ERR() bug in probe()
|
|
The 'use' field in struct rose_neigh is used as a reference counter but
lacks atomicity. This can lead to race conditions where a rose_neigh
structure is freed while still being referenced by other code paths.
For example, when rose_neigh->use becomes zero during an ioctl operation
via rose_rt_ioctl(), the structure may be removed while its timer is
still active, potentially causing use-after-free issues.
This patch changes the type of 'use' from unsigned short to refcount_t and
updates all code paths to use rose_neigh_hold() and rose_neigh_put() which
operate reference counts atomically.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Takamitsu Iwai <takamitz@amazon.co.jp>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250823085857.47674-3-takamitz@amazon.co.jp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The current rose_remove_neigh() performs two distinct operations:
1. Removes rose_neigh from rose_neigh_list
2. Frees the rose_neigh structure
Split these operations into separate functions to improve maintainability
and prepare for upcoming refcount_t conversion. The timer cleanup remains
in rose_remove_neigh() because free operations can be called from timer
itself.
This patch introduce rose_neigh_put() to handle the freeing of rose_neigh
structures and modify rose_remove_neigh() to handle removal only.
Signed-off-by: Takamitsu Iwai <takamitz@amazon.co.jp>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250823085857.47674-2-takamitz@amazon.co.jp
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The kernel-doc description of MEMBLOCK_RSRV_NOINIT and
memblock_reserved_mark_noinit() do not accurately describe their
functionality.
Expand their kernel doc to make it clear that the user of
MEMBLOCK_RSRV_NOINIT is responsible to properly initialize the struct pages
for such regions and add more details about effects of using this flag.
Reviewed-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/f8140a17-c4ec-489b-b314-d45abe48bf36@redhat.com
Link: https://lore.kernel.org/r/20250826071947.1949725-1-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
|
|
The VHOST_[GS]ET_FEATURES_ARRAY ioctl already took 0x83 and it would
result in a build error when the vhost uapi header is used for perf tool
build like below.
In file included from trace/beauty/ioctl.c:93:
tools/perf/trace/beauty/generated/ioctl/vhost_virtio_ioctl_array.c: In function ‘ioctl__scnprintf_vhost_virtio_cmd’:
tools/perf/trace/beauty/generated/ioctl/vhost_virtio_ioctl_array.c:36:18: error: initialized field overwritten [-Werror=override-init]
36 | [0x83] = "SET_FORK_FROM_OWNER",
| ^~~~~~~~~~~~~~~~~~~~~
tools/perf/trace/beauty/generated/ioctl/vhost_virtio_ioctl_array.c:36:18: note: (near initialization for ‘vhost_virtio_ioctl_cmds[131]’)
Fixes: 7d9896e9f6d02d8a ("vhost: Reintroduce kthread API and add mode selection")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Message-Id: <20250819063958.833770-1-namhyung@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
|
|
The commit 206cc44588f7 ("virtio: reject shm region if length is zero")
breaks the Virtio-gpu `host_visible` feature.
As you can see in the snippet below, host_visible_region is zero because
of the `kzalloc`. It's using the `vm_get_shm_region`
(drivers/virtio/virtio_mmio.c:536) to read the `addr` and `len` from
qemu/crosvm.
```
drivers/gpu/drm/virtio/virtgpu_kms.c
132 vgdev = drmm_kzalloc(dev, sizeof(struct virtio_gpu_device), GFP_KERNEL);
[...]
177 if (virtio_get_shm_region(vgdev->vdev, &vgdev->host_visible_region,
178 VIRTIO_GPU_SHM_ID_HOST_VISIBLE)) {
```
Now it always fails.
To fix, revert the offending commit.
Fixes: 206cc44588f7 ("virtio: reject shm region if length is zero")
Signed-off-by: Igor Torrente <igor.torrente@collabora.com>
Message-Id: <20250807124145.81816-1-igor.torrente@collabora.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
|
After working with this code for a while, I came across several typos.
This patch fixes them.
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/r/20250825-gpuvm-typo-fix-v1-1-14e9e78e28e6@google.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB driver fixes for 6.17-rc3 to resolve a bunch
of reported issues. Included in here are:
- typec driver fixes
- dwc3 new device id
- dwc3 driver fixes
- new usb-storage driver quirks
- xhci driver fixes
- other tiny USB driver fixes to resolve bugs
All of these have been in linux-next this week with no reported issues"
* tag 'usb-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: xhci: fix host not responding after suspend and resume
usb: xhci: Fix slot_id resource race conflict
usb: typec: fusb302: Revert incorrect threaded irq fix
USB: core: Update kerneldoc for usb_hcd_giveback_urb()
usb: typec: maxim_contaminant: re-enable cc toggle if cc is open and port is clean
usb: typec: maxim_contaminant: disable low power mode when reading comparator values
usb: dwc3: Remove WARN_ON for device endpoint command timeouts
USB: storage: Ignore driver CD mode for Realtek multi-mode Wi-Fi dongles
usb: storage: realtek_cr: Use correct byte order for bcs->Residue
usb: chipidea: imx: improve usbmisc_imx7d_pullup()
kcov, usb: Don't disable interrupts in kcov_remote_start_usb_softirq()
usb: dwc3: pci: add support for the Intel Wildcat Lake
usb: dwc3: Ignore late xferNotReady event to prevent halt timeout
USB: storage: Add unusual-devs entry for Novatek NTK96550-based camera
usb: core: hcd: fix accessing unmapped memory in SINGLE_STEP_SET_FEATURE test
usb: renesas-xhci: Fix External ROM access timeouts
usb: gadget: tegra-xudc: fix PM use count underflow
usb: quirks: Add DELAY_INIT quick for another SanDisk 3.2Gen1 Flash Drive
|
|
syzbot reported the splat below. [0]
When atmtcp_v_open() or atmtcp_v_close() is called via connect()
or close(), atmtcp_send_control() is called to send an in-kernel
special message.
The message has ATMTCP_HDR_MAGIC in atmtcp_control.hdr.length.
Also, a pointer of struct atm_vcc is set to atmtcp_control.vcc.
The notable thing is struct atmtcp_control is uAPI but has a
space for an in-kernel pointer.
struct atmtcp_control {
struct atmtcp_hdr hdr; /* must be first */
...
atm_kptr_t vcc; /* both directions */
...
} __ATM_API_ALIGN;
typedef struct { unsigned char _[8]; } __ATM_API_ALIGN atm_kptr_t;
The special message is processed in atmtcp_recv_control() called
from atmtcp_c_send().
atmtcp_c_send() is vcc->dev->ops->send() and called from 2 paths:
1. .ndo_start_xmit() (vcc->send() == atm_send_aal0())
2. vcc_sendmsg()
The problem is sendmsg() does not validate the message length and
userspace can abuse atmtcp_recv_control() to overwrite any kptr
by atmtcp_control.
Let's add a new ->pre_send() hook to validate messages from sendmsg().
[0]:
Oops: general protection fault, probably for non-canonical address 0xdffffc00200000ab: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000100000558-0x000000010000055f]
CPU: 0 UID: 0 PID: 5865 Comm: syz-executor331 Not tainted 6.17.0-rc1-syzkaller-00215-gbab3ce404553 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:atmtcp_recv_control drivers/atm/atmtcp.c:93 [inline]
RIP: 0010:atmtcp_c_send+0x1da/0x950 drivers/atm/atmtcp.c:297
Code: 4d 8d 75 1a 4c 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 15 06 00 00 41 0f b7 1e 4d 8d b7 60 05 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 13 06 00 00 66 41 89 1e 4d 8d 75 1c 4c
RSP: 0018:ffffc90003f5f810 EFLAGS: 00010203
RAX: 00000000200000ab RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802a510000 RSI: 00000000ffffffff RDI: ffff888030a6068c
RBP: ffff88802699fb40 R08: ffff888030a606eb R09: 1ffff1100614c0dd
R10: dffffc0000000000 R11: ffffffff8718fc40 R12: dffffc0000000000
R13: ffff888030a60680 R14: 000000010000055f R15: 00000000ffffffff
FS: 00007f8d7e9236c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045ad50 CR3: 0000000075bde000 CR4: 00000000003526f0
Call Trace:
<TASK>
vcc_sendmsg+0xa10/0xc60 net/atm/common.c:645
sock_sendmsg_nosec net/socket.c:714 [inline]
__sock_sendmsg+0x219/0x270 net/socket.c:729
____sys_sendmsg+0x505/0x830 net/socket.c:2614
___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668
__sys_sendmsg net/socket.c:2700 [inline]
__do_sys_sendmsg net/socket.c:2705 [inline]
__se_sys_sendmsg net/socket.c:2703 [inline]
__x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8d7e96a4a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8d7e923198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8d7e9f4308 RCX: 00007f8d7e96a4a9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000005
RBP: 00007f8d7e9f4300 R08: 65732f636f72702f R09: 65732f636f72702f
R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f8d7e9c10ac
R13: 00007f8d7e9231a0 R14: 0000200000000200 R15: 0000200000000250
</TASK>
Modules linked in:
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot+1741b56d54536f4ec349@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/68a6767c.050a0220.3d78fd.0011.GAE@google.com/
Tested-by: syzbot+1741b56d54536f4ec349@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250821021901.2814721-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Pull drm fixes from Dave Airlie:
"Weekly drm fixes. Looks like things did indeed get busier after rc2,
nothing seems too major, but stuff scattered all over the place,
amdgpu, xe, i915, hibmc, rust support code, and other small fixes.
rust:
- drm device memory layout and safety fixes
tests:
- Endianness fixes
gpuvm:
- docs warning fix
panic:
- fix division on 32-bit arm
i915:
- TypeC DP display Fixes
- Silence rpm wakeref asserts on GEN11_GU_MISC_IIR access
- Relocate compression repacking WA for JSL/EHL
xe:
- xe_vm_create fixes
- fix vm bind ioctl double free
amdgpu:
- Replay fixes
- SMU14 fix
- Null check DC fixes
- DCE6 DC fixes
- Misc DC fixes
bridge:
- analogix_dp: devm_drm_bridge_alloc() error handling fix
habanalabs:
- Memory deallocation fix
hibmc:
- modesetting black screen fixes
- fix UAF on irq
- fix leak on i2c failure path
nouveau:
- memory leak fixes
- typos
rockchip:
- Kconfig fix
- register caching fix"
* tag 'drm-fixes-2025-08-23-1' of https://gitlab.freedesktop.org/drm/kernel: (49 commits)
drm/xe: Fix vm_bind_ioctl double free bug
drm/xe: Move ASID allocation and user PT BO tracking into xe_vm_create
drm/xe: Assign ioctl xe file handler to vm in xe_vm_create
drm/i915/gt: Relocate compression repacking WA for JSL/EHL
drm/i915: silence rpm wakeref asserts on GEN11_GU_MISC_IIR access
drm/amd/display: Fix DP audio DTO1 clock source on DCE 6.
drm/amd/display: Fix fractional fb divider in set_pixel_clock_v3
drm/amd/display: Don't print errors for nonexistent connectors
drm/amd/display: Don't warn when missing DCE encoder caps
drm/amd/display: Fill display clock and vblank time in dce110_fill_display_configs
drm/amd/display: Find first CRTC and its line time in dce110_fill_display_configs
drm/amd/display: Adjust DCE 8-10 clock, don't overclock by 15%
drm/amd/display: Don't overclock DCE 6 by 15%
drm/amd/display: Add null pointer check in mod_hdcp_hdcp1_create_session()
drm/amd/display: Fix Xorg desktop unresponsive on Replay panel
drm/amd/display: Avoid a NULL pointer dereference
drm/amdgpu/swm14: Update power limit logic
drm/amd/display: Revert Add HPO encoder support to Replay
drm/i915/icl+/tc: Convert AUX powered WARN to a debug message
drm/i915/lnl+/tc: Use the cached max lane count value
...
|
|
Function set_name_sync() uses hdev->dev_name field to send
HCI_OP_WRITE_LOCAL_NAME command, but copying from data to hdev->dev_name
is called after mgmt cmd was queued, so it is possible that function
set_name_sync() will read old name value.
This change adds name as a parameter for function hci_update_name_sync()
to avoid race condition.
Fixes: 6f6ff38a1e14 ("Bluetooth: hci_sync: Convert MGMT_OP_SET_LOCAL_NAME")
Signed-off-by: Pavel Shpakovskiy <pashpakovskii@salutedevices.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Two small cleanups which are both relevant only when running as a Xen
guest"
* tag 'for-linus-6.17-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drivers/xen/xenbus: remove quirk for Xen 3.x
compiler: remove __ADDRESSABLE_ASM{_STR,}() again
|
|
Pull block fixes from Jens Axboe:
"A set of fixes for block that should go into this tree. A bit larger
than what I usually have at this point in time, a lot of that is the
continued fixing of the lockdep annotation for queue freezing that we
recently added, which has highlighted a number of little issues here
and there. This contains:
- MD pull request via Yu:
- Add a legacy_async_del_gendisk mode, to prevent a user tools
regression. New user tools releases will not use such a mode,
the old release with a new kernel now will have warning about
deprecated behavior, and we prepare to remove this legacy mode
after about a year later
- The rename in kernel causing user tools build failure, revert
the rename in mdp_superblock_s
- Fix a regression that interrupted resync can be shown as
recover from mdstat or sysfs
- Improve file size detection for loop, particularly for networked
file systems, by using getattr to get the size rather than the
cached inode size.
- Hotplug CPU lock vs queue freeze fix
- Lockdep fix while updating the number of hardware queues
- Fix stacking for PI devices
- Silence bio_check_eod() for the known case of device removal where
the size is truncated to 0 sectors"
* tag 'block-6.17-20250822' of git://git.kernel.dk/linux:
block: avoid cpu_hotplug_lock depedency on freeze_lock
block: decrement block_rq_qos static key in rq_qos_del()
block: skip q->rq_qos check in rq_qos_done_bio()
blk-mq: fix lockdep warning in __blk_mq_update_nr_hw_queues
block: tone down bio_check_eod
loop: use vfs_getattr_nosec for accurate file size
loop: Consolidate size calculation logic into lo_calculate_size()
block: remove newlines from the warnings in blk_validate_integrity_limits
block: handle pi_tuple_size in queue_limits_stack_integrity
selftests: ublk: Use ARRAY_SIZE() macro to improve code
md: fix sync_action incorrect display during resync
md: add helper rdev_needs_recovery()
md: keep recovery_cp in mdp_superblock_s
md: add legacy_async_del_gendisk mode
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Only small fixes.
- ASoC Cirrus codec fixes
- A regression fix for the recent TAS2781 codec refactoring
- A fix for user-timer error handling
- Fixes for USB-audio descriptor validators
- Usual HD-audio and ASoC device-specific quirks"
* tag 'sound-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Use correct sub-type for UAC3 feature unit validation
ALSA: timer: fix ida_free call while not allocated
ASoC: cs35l56: Remove SoundWire Clock Divider workaround for CS35L63
ASoC: cs35l56: Handle new algorithms IDs for CS35L63
ASoC: cs35l56: Update Firmware Addresses for CS35L63 for production silicon
ALSA: hda: tas2781: Fix wrong reference of tasdevice_priv
ALSA: hda/realtek: Audio disappears on HP 15-fc000 after warm boot again
ALSA: hda/realtek: Fix headset mic on ASUS Zenbook 14
ASoC: codecs: ES9389: Modify the standby configuration
ALSA: usb-audio: Fix size validation in convert_chmap_v3()
ALSA: hda/tas2781: Add name prefix tas2781 for tas2781's dvc_tlv and amp_vol_tlv
ALSA: hda/realtek: Add support for HP EliteBook x360 830 G6 and EliteBook 830 G6
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Pull NFS client fix from Trond Myklebust:
- NFS: Fix a data corrupting race when updating an existing write
* tag 'nfs-for-6.17-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix a race when updating an existing write
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes. 10 are cc:stable and the remainder address post-6.16
issues or aren't considered necessary for -stable kernels. 17 of these
fixes are for MM.
As usual, singletons all over the place, apart from a three-patch
series of KHO followup work from Pasha which is actually also a bunch
of singletons"
* tag 'mm-hotfixes-stable-2025-08-21-18-17' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/mremap: fix WARN with uffd that has remap events disabled
mm/damon/sysfs-schemes: put damos dests dir after removing its files
mm/migrate: fix NULL movable_ops if CONFIG_ZSMALLOC=m
mm/damon/core: fix damos_commit_filter not changing allow
mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn
MAINTAINERS: mark MGLRU as maintained
mm: rust: add page.rs to MEMORY MANAGEMENT - RUST
iov_iter: iterate_folioq: fix handling of offset >= folio size
selftests/damon: fix selftests by installing drgn related script
.mailmap: add entry for Easwar Hariharan
selftests/mm: add test for invalid multi VMA operations
mm/mremap: catch invalid multi VMA moves earlier
mm/mremap: allow multi-VMA move when filesystem uses thp_get_unmapped_area
mm/damon/core: fix commit_ops_filters by using correct nth function
tools/testing: add linux/args.h header and fix radix, VMA tests
mm/debug_vm_pgtable: clear page table entries at destroy_args()
squashfs: fix memory leak in squashfs_fill_super
kho: warn if KHO is disabled due to an error
kho: mm: don't allow deferred struct page with KHO
kho: init new_physxa->phys_bits to fix lockdep
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In a similar manner to copy_from_iter()/copy_from_iter_full(), introduce
skb_copy_datagram_from_iter_full() which reverts the iterator to its
initial state when returning an error.
A subsequent fix for a vsock regression will make use of this new
function.
Cc: Christian Brauner <brauner@kernel.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Will Deacon <will@kernel.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://patch.msgid.link/20250818180355.29275-2-will@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix three new issues in the ACPI APEI error injection code and
an ACPI platform firmware runtime update interface issue:
- Make ACPI APEI error injection check the version of the request
when mapping the EINJ parameter structure in the BIOS reserved
memory to prevent injecting errors based on an uninitialized
field (Tony Luck)
- Fix potential NULL dereference in __einj_error_inject() that may
occur when memory allocation fails (Charles Han)
- Remove the __exit annotation from einj_remove(), so it can be
called on errors during faux device probe (Uwe Kleine-König)
- Use a security-version-number check instead of a runtime version
check during ACPI platform firmware runtime driver updates to
prevent those updates from failing due to false-positive driver
version check failures (Chen Yu)"
* tag 'acpi-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: pfr_update: Fix the driver update version check
ACPI: APEI: EINJ: Fix resource leak by remove callback in .exit.text
ACPI: APEI: EINJ: fix potential NULL dereference in __einj_error_inject()
ACPI: APEI: EINJ: Check if user asked for EINJV2 injection
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Bluetooth.
Current release - fix to a fix:
- usb: asix_devices: fix PHY address mask in MDIO bus initialization
Current release - regressions:
- Bluetooth: fixes for the split between BIS_LINK and PA_LINK
- Revert "net: cadence: macb: sama7g5_emac: Remove USARIO CLKEN
flag", breaks compatibility with some existing device tree blobs
- dsa: b53: fix reserved register access in b53_fdb_dump()
Current release - new code bugs:
- sched: dualpi2: run probability update timer in BH to avoid
deadlock
- eth: libwx: fix the size in RSS hash key population
- pse-pd: pd692x0: improve power budget error paths and handling
Previous releases - regressions:
- tls: fix handling of zero-length records on the rx_list
- hsr: reject HSR frame if skb can't hold tag
- bonding: fix negotiation flapping in 802.3ad passive mode
Previous releases - always broken:
- gso: forbid IPv6 TSO with extensions on devices with only IPV6_CSUM
- sched: make cake_enqueue return NET_XMIT_CN when past buffer_limit,
avoid packet drops with low buffer_limit, remove unnecessary WARN()
- sched: fix backlog accounting after modifying config of a qdisc in
the middle of the hierarchy
- mptcp: improve handling of skb extension allocation failures
- eth: mlx5:
- fixes for the "HW Steering" flow management method
- fixes for QoS and device buffer management"
* tag 'net-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
netfilter: nf_reject: don't leak dst refcount for loopback packets
net/mlx5e: Preserve shared buffer capacity during headroom updates
net/mlx5e: Query FW for buffer ownership
net/mlx5: Restore missing scheduling node cleanup on vport enable failure
net/mlx5: Fix QoS reference leak in vport enable error path
net/mlx5: Destroy vport QoS element when no configuration remains
net/mlx5e: Preserve tc-bw during parent changes
net/mlx5: Remove default QoS group and attach vports directly to root TSAR
net/mlx5: Base ECVF devlink port attrs from 0
net: pse-pd: pd692x0: Skip power budget configuration when undefined
net: pse-pd: pd692x0: Fix power budget leak in manager setup error path
Octeontx2-af: Skip overlap check for SPI field
selftests: tls: add tests for zero-length records
tls: fix handling of zero-length records on the rx_list
net: airoha: ppe: Do not invalid PPE entries in case of SW hash collision
selftests: bonding: add test for passive LACP mode
bonding: send LACPDUs periodically in passive mode after receiving partner's LACPDU
bonding: update LACP activity flag after setting lacp_active
Revert "net: cadence: macb: sama7g5_emac: Remove USARIO CLKEN flag"
ipv6: sr: Fix MAC comparison to be constant-time
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix a lot of build warnings for LTO-enabled objtool check, increase
COMMAND_LINE_SIZE up to 4096, rename a missing GCC_PLUGIN_STACKLEAK to
KSTACK_ERASE, and fix some bugs about arch timer, module loading, LBT
and KVM"
* tag 'loongarch-fixes-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Add address alignment check in pch_pic register access
LoongArch: KVM: Use kvm_get_vcpu_by_id() instead of kvm_get_vcpu()
LoongArch: KVM: Fix stack protector issue in send_ipi_data()
LoongArch: KVM: Make function kvm_own_lbt() robust
LoongArch: Rename GCC_PLUGIN_STACKLEAK to KSTACK_ERASE
LoongArch: Save LBT before FPU in setup_sigcontext()
LoongArch: Optimize module load time by optimizing PLT/GOT counting
LoongArch: Add cpuhotplug hooks to fix high cpu usage of vCPU threads
LoongArch: Increase COMMAND_LINE_SIZE up to 4096
LoongArch: Pass annotate-tablejump option if LTO is enabled
objtool/LoongArch: Get table size correctly if LTO is enabled
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A recent lockdep[1] splat observed while running blktest block/005
reveals a potential deadlock caused by the cpu_hotplug_lock dependency
on ->freeze_lock. This dependency was introduced by commit 033b667a823e
("block: blk-rq-qos: guard rq-qos helpers by static key").
That change added a static key to avoid fetching q->rq_qos when
neither blk-wbt nor blk-iolatency is configured. The static key
dynamically patches kernel text to a NOP when disabled, eliminating
overhead of fetching q->rq_qos in the I/O hot path. However, enabling
a static key at runtime requires acquiring both cpu_hotplug_lock and
jump_label_mutex. When this happens after the queue has already been
frozen (i.e., while holding ->freeze_lock), it creates a locking
dependency from cpu_hotplug_lock to ->freeze_lock, which leads to a
potential deadlock reported by lockdep [1].
To resolve this, replace the static key mechanism with q->queue_flags:
QUEUE_FLAG_QOS_ENABLED. This flag is evaluated in the fast path before
accessing q->rq_qos. If the flag is set, we proceed to fetch q->rq_qos;
otherwise, the access is skipped.
Since q->queue_flags is commonly accessed in IO hotpath and resides in
the first cacheline of struct request_queue, checking it imposes minimal
overhead while eliminating the deadlock risk.
This change avoids the lockdep splat without introducing performance
regressions.
[1] https://lore.kernel.org/linux-block/4fdm37so3o4xricdgfosgmohn63aa7wj3ua4e5vpihoamwg3ui@fq42f5q5t5ic/
Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Closes: https://lore.kernel.org/linux-block/4fdm37so3o4xricdgfosgmohn63aa7wj3ua4e5vpihoamwg3ui@fq42f5q5t5ic/
Fixes: 033b667a823e ("block: blk-rq-qos: guard rq-qos helpers by static key")
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20250814082612.500845-4-nilay@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The port's actor_oper_port_state activity flag should be updated immediately
after changing the lacp_active option to reflect the current mode correctly.
Fixes: 3a755cd8b7c6 ("bonding: add new option lacp_active")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250815062000.22220-2-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.17
A few fixes that came in during the past week, there's some updates for
the CS35L56 which adjust the driver for production silicon and a fix for
buggy resume of the ES9389.
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CS35L63 uses different algorithm IDs from CS35L56.
Add a new mechanism to handle different alg IDs between parts in the
CS35L56 driver.
Fixes: 978858791ced ("ASoC: cs35l56: Add initial support for CS35L63 for I2C and SoundWire")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20250820142209.127575-3-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Production silicon for CS36L63 has some small differences compared to
pre-production silicon. Update firmware addresses, which are different.
No product was ever released with pre-production silicon so there is no
need for the driver to include support for it.
Fixes: 978858791ced ("ASoC: cs35l56: Add initial support for CS35L63 for I2C and SoundWire")
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20250820142209.127575-2-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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When the CPU is offline, the timer of LoongArch is not correctly closed.
This is harmless for real machines, but resulting in an excessively high
cpu usage rate of the offline vCPU thread in the virtual machines.
To correctly close the timer, we have made the following modifications:
Register the cpu hotplug event (CPUHP_AP_LOONGARCH_ARCH_TIMER_STARTING)
for LoongArch. This event's hooks will be called to close the timer when
the CPU is offline.
Clear the timer interrupt when the timer is turned off. Since before the
timer is turned off, there may be a timer interrupt that has already been
in the pending state due to the interruption of the disabled, which also
affects the halt state of the offline vCPU.
Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Update drm-misc-fixes to -rc2.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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The security-version-number check should be used rather
than the runtime version check for driver updates.
Otherwise, the firmware update would fail when the update binary had
a lower runtime version number than the current one.
Fixes: 0db89fa243e5 ("ACPI: Introduce Platform Firmware Runtime Update device driver")
Cc: 5.17+ <stable@vger.kernel.org> # 5.17+
Reported-by: "Govindarajulu, Hariganesh" <hariganesh.govindarajulu@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Link: https://patch.msgid.link/20250722143233.3970607-1-yu.c.chen@intel.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Currently the kernel will happily route io_uring requests with metadata
to file operations that don't support it. Add a FMODE_ flag to guard
that.
Fixes: 4de2ce04c862 ("fs: introduce IOCB_HAS_METADATA for metadata")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/20250819082517.2038819-2-hch@lst.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
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