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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"27 hotfixes. 12 are cc:stable, 18 are MM.
There's a patch series from Jiayuan Chen which fixes some
issues with KASAN and vmalloc. Apart from that it's the usual
shower of singletons - please see the respective changelogs
for details"
* tag 'mm-hotfixes-stable-2025-12-28-21-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (27 commits)
mm/ksm: fix pte_unmap_unlock of wrong address in break_ksm_pmd_entry
mm/page_owner: fix memory leak in page_owner_stack_fops->release()
mm/memremap: fix spurious large folio warning for FS-DAX
MAINTAINERS: notify the "Device Memory" community of memory hotplug changes
sparse: update MAINTAINERS info
mm/page_alloc: report 1 as zone_batchsize for !CONFIG_MMU
mm: consider non-anon swap cache folios in folio_expected_ref_count()
rust: maple_tree: rcu_read_lock() in destructor to silence lockdep
mm: memcg: fix unit conversion for K() macro in OOM log
mm: fixup pfnmap memory failure handling to use pgoff
tools/mm/page_owner_sort: fix timestamp comparison for stable sorting
selftests/mm: fix thread state check in uffd-unit-tests
kernel/kexec: fix IMA when allocation happens in CMA area
kernel/kexec: change the prototype of kimage_map_segment()
MAINTAINERS: add ABI headers to KHO and LIVE UPDATE
.mailmap: remove one of the entries for WangYuli
mm/damon/vaddr: fix missing pte_unmap_unlock in damos_va_migrate_pmd_entry()
MAINTAINERS: update one straggling entry for Bartosz Golaszewski
mm/page_alloc: change all pageblocks migrate type on coalescing
mm: leafops.h: correct kernel-doc function param. names
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A couple of fixes from Thomas, making the UAPI headers more robustly
correct and ensuring they are covered by checkpatch, and one from
Andreas fixing an update for a change to the DT bindings that I missed
was requested during bindings review in the newly added fp9931 driver"
* tag 'regulator-fix-v6.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: fp9931: fix regulator node pointer
regulator: Add UAPI headers to MAINTAINERS
regulator: uapi: Use UAPI integer type
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git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Introduce DMA Rust helpers to avoid build errors when !CONFIG_HAS_DMA
- Remove unnecessary (and hence incorrect) endian conversion in the
Rust PCI driver sample code
- Fix memory leak in the unwind path of debugfs_change_name()
- Support non-const struct software_node pointers in
SOFTWARE_NODE_REFERENCE(), after introducing _Generic()
- Avoid NULL pointer dereference in the unwind path of
simple_xattrs_free()
* tag 'driver-core-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
fs/kernfs: null-ptr deref in simple_xattrs_free()
software node: Also support referencing non-constant software nodes
debugfs: Fix memleak in debugfs_change_name().
samples: rust: fix endianness issue in rust_driver_pci
rust: dma: add helpers for architectures without CONFIG_HAS_DMA
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Pull virtio fixes from Michael Tsirkin:
"Just a bunch of fixes, mostly trivial ones in tools/virtio"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost/vsock: improve RCU read sections around vhost_vsock_get()
tools/virtio: add device, device_driver stubs
tools/virtio: fix up oot build
virtio_features: make it self-contained
tools/virtio: switch to kernel's virtio_config.h
tools/virtio: stub might_sleep and synchronize_rcu
tools/virtio: add struct cpumask to cpumask.h
tools/virtio: pass KCFLAGS to module build
tools/virtio: add ucopysize.h stub
tools/virtio: add dev_WARN_ONCE and is_vmalloc_addr stubs
tools/virtio: stub DMA mapping functions
tools/virtio: add struct module forward declaration
tools/virtio: use kernel's virtio.h
virtio: make it self-contained
tools/virtio: fix up compiler.h stub
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virtio_features.h uses WARN_ON_ONCE and memset so it must
include linux/bug.h and linux/string.h
Message-ID: <579986aa9b8d023844990d2a0e267382f8ad85d5.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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virtio.h uses struct module, add a forward declaration to
make the header self-contained.
Message-ID: <9171b5cac60793eb59ab044c96ee038bf1363bee.1764873799.git.mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Currently, folio_expected_ref_count() only adds references for the swap
cache if the folio is anonymous. However, according to the comment above
the definition of PG_swapcache in enum pageflags, shmem folios can also
have PG_swapcache set. This patch makes sure references for the swap
cache are added if folio_test_swapcache(folio) is true.
This issue was found when trying to hot-unplug memory in a QEMU/KVM
virtual machine. When initiating hot-unplug when most of the guest memory
is allocated, hot-unplug hangs partway through removal due to migration
failures. The following message would be printed several times, and would
be printed again about every five seconds:
[ 49.641309] migrating pfn b12f25 failed ret:7
[ 49.641310] page: refcount:2 mapcount:0 mapping:0000000033bd8fe2 index:0x7f404d925 pfn:0xb12f25
[ 49.641311] aops:swap_aops
[ 49.641313] flags: 0x300000000030508(uptodate|active|owner_priv_1|reclaim|swapbacked|node=0|zone=3)
[ 49.641314] raw: 0300000000030508 ffffed312c4bc908 ffffed312c4bc9c8 0000000000000000
[ 49.641315] raw: 00000007f404d925 00000000000c823b 00000002ffffffff 0000000000000000
[ 49.641315] page dumped because: migration failure
When debugging this, I found that these migration failures were due to
__migrate_folio() returning -EAGAIN for a small set of folios because the
expected reference count it calculates via folio_expected_ref_count() is
one less than the actual reference count of the folios. Furthermore, all
of the affected folios were not anonymous, but had the PG_swapcache flag
set, inspiring this patch. After applying this patch, the memory
hot-unplug behaves as expected.
I tested this on a machine running Ubuntu 24.04 with kernel version
6.8.0-90-generic and 64GB of memory. The guest VM is managed by libvirt
and runs Ubuntu 24.04 with kernel version 6.18 (though the head of the
mm-unstable branch as a Dec 16, 2025 was also tested and behaves the same)
and 48GB of memory. The libvirt XML definition for the VM can be found at
[1]. CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_MOVABLE is set in the guest
kernel so the hot-pluggable memory is automatically onlined.
Below are the steps to reproduce this behavior:
1) Define and start and virtual machine
host$ virsh -c qemu:///system define ./test_vm.xml # test_vm.xml from [1]
host$ virsh -c qemu:///system start test_vm
2) Setup swap in the guest
guest$ sudo fallocate -l 32G /swapfile
guest$ sudo chmod 0600 /swapfile
guest$ sudo mkswap /swapfile
guest$ sudo swapon /swapfile
3) Use alloc_data [2] to allocate most of the remaining guest memory
guest$ ./alloc_data 45
4) In a separate guest terminal, monitor the amount of used memory
guest$ watch -n1 free -h
5) When alloc_data has finished allocating, initiate the memory
hot-unplug using the provided xml file [3]
host$ virsh -c qemu:///system detach-device test_vm ./remove.xml --live
After initiating the memory hot-unplug, you should see the amount of
available memory in the guest decrease, and the amount of used swap data
increase. If everything works as expected, when all of the memory is
unplugged, there should be around 8.5-9GB of data in swap. If the
unplugging is unsuccessful, the amount of used swap data will settle below
that. If that happens, you should be able to see log messages in dmesg
similar to the one posted above.
Link: https://lkml.kernel.org/r/20251216200727.2360228-1-bijan311@gmail.com
Link: https://github.com/BijanT/linux_patch_files/blob/main/test_vm.xml [1]
Link: https://github.com/BijanT/linux_patch_files/blob/main/alloc_data.c [2]
Link: https://github.com/BijanT/linux_patch_files/blob/main/remove.xml [3]
Fixes: 86ebd50224c0 ("mm: add folio_expected_ref_count() for reference count calculation")
Signed-off-by: Bijan Tabatabai <bijan311@gmail.com>
Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The memory failure handling implementation for the PFNMAP memory with no
struct pages is faulty. The VA of the mapping is determined based on the
the PFN. It should instead be based on the file mapping offset.
At the occurrence of poison, the memory_failure_pfn is triggered on the
poisoned PFN. Introduce a callback function that allows mm to translate
the PFN to the corresponding file page offset. The kernel module using
the registration API must implement the callback function and provide the
translation. The translated value is then used to determine the VA
information and sending the SIGBUS to the usermode process mapped to the
poisoned PFN.
The callback is also useful for the driver to be notified of the poisoned
PFN, which may then track it.
Link: https://lkml.kernel.org/r/20251211070603.338701-2-ankita@nvidia.com
Fixes: 2ec41967189c ("mm: handle poisoning of pfn without struct pages")
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Cc: Matthew R. Ochs <mochs@nvidia.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Neo Jia <cjia@nvidia.com>
Cc: Vikram Sethi <vsethi@nvidia.com>
Cc: Yishai Hadas <yishaih@nvidia.com>
Cc: Zhi Wang <zhiw@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The kexec segment index will be required to extract the corresponding
information for that segment in kimage_map_segment(). Additionally,
kexec_segment already holds the kexec relocation destination address and
size. Therefore, the prototype of kimage_map_segment() can be changed.
Link: https://lkml.kernel.org/r/20251216014852.8737-1-piliu@redhat.com
Fixes: 07d24902977e ("kexec: enable CMA based contiguous allocation")
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Roberto Sassu <roberto.sassu@huawei.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: Steven Chen <chenste@linux.microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Modify the kernel-doc function parameter names to prevent kernel-doc
warnings:
Warning: include/linux/leafops.h:135 function parameter 'entry' not
described in 'leafent_type'
Warning: include/linux/leafops.h:540 function parameter 'pte' not
described in 'pte_is_uffd_marker'
Link: https://lkml.kernel.org/r/20251214201517.2187051-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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A KASAN tag mismatch, possibly causing a kernel panic, can be observed
on systems with a tag-based KASAN enabled and with multiple NUMA nodes.
It was reported on arm64 and reproduced on x86. It can be explained in
the following points:
1. There can be more than one virtual memory chunk.
2. Chunk's base address has a tag.
3. The base address points at the first chunk and thus inherits
the tag of the first chunk.
4. The subsequent chunks will be accessed with the tag from the
first chunk.
5. Thus, the subsequent chunks need to have their tag set to
match that of the first chunk.
Refactor code by reusing __kasan_unpoison_vmalloc in a new helper in
preparation for the actual fix.
Link: https://lkml.kernel.org/r/eb61d93b907e262eefcaa130261a08bcb6c5ce51.1764874575.git.m.wieczorretman@pm.me
Fixes: 1d96320f8d53 ("kasan, vmalloc: add vmalloc tagging for SW_TAGS")
Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Jiayuan Chen <jiayuan.chen@linux.dev>
Cc: Kees Cook <kees@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: <stable@vger.kernel.org> [6.1+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "kasan: vmalloc: Fixes for the percpu allocator and
vrealloc", v3.
Patches fix two issues related to KASAN and vmalloc.
The first one, a KASAN tag mismatch, possibly resulting in a kernel panic,
can be observed on systems with a tag-based KASAN enabled and with
multiple NUMA nodes. Initially it was only noticed on x86 [1] but later a
similar issue was also reported on arm64 [2].
Specifically the problem is related to how vm_structs interact with
pcpu_chunks - both when they are allocated, assigned and when pcpu_chunk
addresses are derived.
When vm_structs are allocated they are unpoisoned, each with a different
random tag, if vmalloc support is enabled along the KASAN mode. Later
when first pcpu chunk is allocated it gets its 'base_addr' field set to
the first allocated vm_struct. With that it inherits that vm_struct's
tag.
When pcpu_chunk addresses are later derived (by pcpu_chunk_addr(), for
example in pcpu_alloc_noprof()) the base_addr field is used and offsets
are added to it. If the initial conditions are satisfied then some of the
offsets will point into memory allocated with a different vm_struct. So
while the lower bits will get accurately derived the tag bits in the top
of the pointer won't match the shadow memory contents.
The solution (proposed at v2 of the x86 KASAN series [3]) is to unpoison
the vm_structs with the same tag when allocating them for the per cpu
allocator (in pcpu_get_vm_areas()).
The second one reported by syzkaller [4] is related to vrealloc and
happens because of random tag generation when unpoisoning memory without
allocating new pages. This breaks shadow memory tracking and needs to
reuse the existing tag instead of generating a new one. At the same time
an inconsistency in used flags is corrected.
This patch (of 3):
Syzkaller reported a memory out-of-bounds bug [4]. This patch fixes two
issues:
1. In vrealloc the KASAN_VMALLOC_VM_ALLOC flag is missing when
unpoisoning the extended region. This flag is required to correctly
associate the allocation with KASAN's vmalloc tracking.
Note: In contrast, vzalloc (via __vmalloc_node_range_noprof)
explicitly sets KASAN_VMALLOC_VM_ALLOC and calls
kasan_unpoison_vmalloc() with it. vrealloc must behave consistently --
especially when reusing existing vmalloc regions -- to ensure KASAN can
track allocations correctly.
2. When vrealloc reuses an existing vmalloc region (without allocating
new pages) KASAN generates a new tag, which breaks tag-based memory
access tracking.
Introduce KASAN_VMALLOC_KEEP_TAG, a new KASAN flag that allows reusing the
tag already attached to the pointer, ensuring consistent tag behavior
during reallocation.
Pass KASAN_VMALLOC_KEEP_TAG and KASAN_VMALLOC_VM_ALLOC to the
kasan_unpoison_vmalloc inside vrealloc_node_align_noprof().
Link: https://lkml.kernel.org/r/cover.1765978969.git.m.wieczorretman@pm.me
Link: https://lkml.kernel.org/r/38dece0a4074c43e48150d1e242f8242c73bf1a5.1764874575.git.m.wieczorretman@pm.me
Link: https://lore.kernel.org/all/e7e04692866d02e6d3b32bb43b998e5d17092ba4.1738686764.git.maciej.wieczor-retman@intel.com/ [1]
Link: https://lore.kernel.org/all/aMUrW1Znp1GEj7St@MiWiFi-R3L-srv/ [2]
Link: https://lore.kernel.org/all/CAPAsAGxDRv_uFeMYu9TwhBVWHCCtkSxoWY4xmFB_vowMbi8raw@mail.gmail.com/ [3]
Link: https://syzkaller.appspot.com/bug?extid=997752115a851cb0cf36 [4]
Fixes: a0309faf1cb0 ("mm: vmalloc: support more granular vrealloc() sizing")
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Co-developed-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reported-by: syzbot+997752115a851cb0cf36@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/68e243a2.050a0220.1696c6.007d.GAE@google.com/T/
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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WARNING: include/linux/genalloc.h:52 function parameter 'start_addr' not described in 'genpool_algo_t'
Fixes: 52fbf1134d47 ("lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lkml.kernel.org/r/20251127130624.563597e3@canb.auug.org.au
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexey Skidanov <alexey.skidanov@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Likely the last pull request in 2025, again a collection of lots of
small fixes. Most of them are various device-specific small fixes:
- An ASoC core fix for correcting the clamping behavior of *_SX mixer
elements
- Various fixes for ASoC fsl, SOF, etc
- Usual HD- and USB-audio quirks / fix-ups
- A couple of error-handling fixes for legacy PCMCIA drivers"
* tag 'sound-6.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
ALSA: hda/realtek: fix PCI SSID for one of the HP 200 G2i laptop
ASoC: ops: fix snd_soc_get_volsw for sx controls
ALSA: hda/realtek: Add Asus quirk for TAS amplifiers
ASoC: Intel: soc-acpi-intel-mtl-match: Add 6 amp CS35L63 with feedback
ASoC: Intel: soc-acpi-intel-mtl-match: Add 6 amp CS35L56 with feedback
ASoC: fsl-asoc-card: Use of_property_present() for non-boolean properties
ASoC: rt1320: update VC blind write settings
ASoC: fsl_xcvr: provide regmap names
ASoC: fsl_sai: Add missing registers to cache default
ASoC: ak4458: remove the reset operation in probe and remove
ASoC: fsl_asrc_dma: fix duplicate debugfs directory error
ASoC: fsl_easrc: fix duplicate debugfs directory error
ALSA: hda/realtek: fix micmute LED reversed on HP Abe and Bantie
ALSA: hda/realtek: Add support for HP Clipper Laptop
ALSA: hda/realtek: Add support for HP Trekker Laptop
ALSA: usb-mixer: us16x08: validate meter packet indices
ASoC: Intel: soc-acpi-intel-nvl-match: Drop rt722 l3 from the match table
ASoC: soc-acpi / SOF: Add best_effort flag to get_function_tplg_files op
ASoC: SOF: Intel: pci-mtl: Change the topology path to intel/sof-ipc4-tplg
ASoC: SOF: ipc4-topology: set playback channel mask
...
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Fwnode references are be implemented differently if referenced node is a
software node. _Generic() is used to differentiate between the two cases
but only const software nodes were present in the selection. Also add
non-const software nodes.
Reported-by: Kenneth Crudup <kenny@panix.com>
Closes: https://lore.kernel.org/all/af773b82-bef2-4209-baaf-526d4661b7fc@panix.com/
Fixes: d7cdbbc93c56 ("software node: allow referencing firmware nodes")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-By: Kenneth R. Crudup <kenny@panix.com>
Tested-by: Mehdi Djait <mehdi.djait@linux.intel.com> # Dell XPS 9315
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Link: https://patch.msgid.link/20251219083638.2454138-1-sakari.ailus@linux.intel.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Using libc types and headers from the UAPI headers is problematic as it
introduces a dependency on a full C toolchain.
Use the fixed-width integer type provided by the UAPI headers instead.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20251222-uapi-regulator-v1-1-a71c66eb1a94@linutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a quirk for i8042 to better handle another TUXEDO model
- a quirk to atkbd to handle incorcet behavior of HONOR FMB-P internal
keyboard
- a definition for a new ABS_SND_PROFILE event
- fixes to alps and lkkbd drivers to reliably shut down pending work on
removal
- a fix to apple_z2 driver tightening input report parsing
- a fix for "off-by-one" error when validating config in ti_am335x_tsc
driver
- addition of CRKD Guitars device IDs to xpad driver.
* tag 'input-for-v6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ti_am335x_tsc - fix off-by-one error in wire_order validation
Input: xpad - add support for CRKD Guitars
Input: add ABS_SND_PROFILE
Input: apple_z2 - fix reading incorrect reports after exiting sleep
Input: alps - fix use-after-free bugs caused by dev3_register_work
Input: i8042 - add TUXEDO InfinityBook Max Gen10 AMD to i8042 quirk table
Input: atkbd - skip deactivate for HONOR FMB-P's internal keyboard
Input: lkkbd - disable pending work before freeing device
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix FPU core dumps on certain CPU models
- Fix htmldocs build warning
- Export TLB tracing event name via header
- Remove unused constant from <linux/mm_types.h>
- Fix comments
- Fix whitespace noise in documentation
- Fix variadic structure's definition to un-confuse UBSAN
- Fix posted MSI interrupts irq_retrigger() bug
- Fix asm build failure with older GCC builds
* tag 'x86-urgent-2025-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bug: Fix old GCC compile fails
x86/msi: Make irq_retrigger() functional for posted MSI
x86/platform/uv: Fix UBSAN array-index-out-of-bounds
mm: Remove tlb_flush_reason::NR_TLB_FLUSH_REASONS from <linux/mm_types.h>
x86/mm/tlb/trace: Export the TLB_REMOTE_WRONG_CPU enum in <trace/events/tlb.h>
x86/sgx: Remove unmatched quote in __sgx_encl_extend function comment
x86/boot/Documentation: Fix whitespace noise in boot.rst
x86/fpu: Fix FPU state core dump truncation on CPUs with no extended xfeatures
x86/boot/Documentation: Fix htmldocs build warning due to malformed table in boot.rst
|
|
Work around clang problems with "=rm" asm constraint.
clang seems to always chose the memory output, while it is almost
always the worst choice.
Add ASM_OUTPUT_RM so that we can replace "=rm" constraint
where it matters for clang, while not penalizing gcc.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Pull drm fixes from Dave Airlie:
"rc2 fixes for the week, mostly xe, with amdgpu as usual. Then a
smattering of small fixes across the core/tests/panel and amdxdna.
I expect things will be quiet for rc3/4 as teams take a break, and I'm
travelling but will keep an eye on things.
core:
- fix gem handle leak on DRM_IOCTL_GEM_CHANGE_HANDLE
tests:
- add EDEADLK handling
amdgpu:
- Fix no_console_suspend handling
- DCN 3.5.x seamless boot fixes
- DP audio fix
- Fix race in GPU recovery
- SMU 14 OD fix
amdkfd:
- Event fix
xe:
- Limit num_syncs to prevent oversized kernel allocations
- Disallow 0 OA property values
- Disallow 0 EU stall property values
- Fix kobject leak
- Workaround
- Loop variable reference fix
- Fix a CONFIG corner-case incorrect number of argument
- Skip reason prefix while emitting array
- VF migration fix
- Fix context in mei interrupt top half
- Don't include the CCS metadata in the dma-buf sg-table
- VF queueing recovery work fix
- Increase TDF timeout
- GT reset registers vs scheduler ordering fix
- Adjust long-running workload timeslices
- Always set OA_OAGLBCTXCTRL_COUNTER_RESUME
- Fix a return value
- Drop preempt-fences when destroying imported dma-bufs
- Use usleep_range for accurate long-running workload timeslicing
amdxdna:
- don't load virtualized
panel:
- fix visionox-rm69299 Kconfig dependency
- sony-td4353-jdi probing fix"
* tag 'drm-fixes-2025-12-20' of https://gitlab.freedesktop.org/drm/kernel: (34 commits)
drm/xe: Use usleep_range for accurate long-running workload timeslicing
drm/xe: Drop preempt-fences when destroying imported dma-bufs.
drm/xe/eustall: Disallow 0 EU stall property values
drm/xe/oa: Disallow 0 OA property values
drm/xe/xe_sriov_vfio: Fix return value in xe_sriov_vfio_migration_supported()
drm/xe/oa: Always set OAG_OAGLBCTXCTRL_COUNTER_RESUME
drm/xe: Adjust long-running workload timeslices to reasonable values
drm/xe/oa: Limit num_syncs to prevent oversized allocations
drm/xe: Limit num_syncs to prevent oversized allocations
drm/amdkfd: Fix improper NULL termination of queue restore SMI event string
drm/amd/pm: restore SCLK settings after S0ix resume
drm/amdgpu: fix a job->pasid access race in gpu recovery
drm/amd/display: Fix DP no audio issue
drm/amd/display: Fix scratch registers offsets for DCN351
drm/amd/display: Fix scratch registers offsets for DCN35
drm/amd: Resume the device in thaw() callback when console suspend is disabled
drm/panel: visionox-rm69299: Depend on BACKLIGHT_CLASS_DEVICE
accel/amdxdna: Block running under a hypervisor
drm/panel: sony-td4353-jdi: Enable prepare_prev_first
drm/xe: Restore engine registers before restarting schedulers after GT reset
...
|
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- ublk selftests for missing coverage
- two fixes for the block integrity code
- fix for the newly added newly added PR read keys ioctl, limiting the
memory that can be allocated
- work around for a deadlock that can occur with ublk, where partition
scanning ends up recursing back into file closure, which needs the
same mutex grabbed. Not the prettiest thing in the world, but an
acceptable work-around until we can eliminate the reliance on
disk->open_mutex for this
- fix for a race between enabling writeback throttling and new IO
submissions
- move a bit of bio flag handling code. No changes, but needed for a
patchset for a future kernel
- fix for an init time id leak failure in rnbd
- loop/zloop state check fix
* tag 'block-6.19-20251218' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block: validate interval_exp integrity limit
block: validate pi_offset integrity limit
block: rnbd-clt: Fix leaked ID in init_dev()
ublk: fix deadlock when reading partition table
block: add allocation size check in blkdev_pr_read_keys()
Documentation: admin-guide: blockdev: replace zone_capacity with zone_capacity_mb when creating devices
zloop: use READ_ONCE() to read lo->lo_state in queue_rq path
loop: use READ_ONCE() to read lo->lo_state without locking
block: fix race between wbt_enable_default and IO submission
selftests: ublk: add user copy test cases
selftests: ublk: add support for user copy to kublk
selftests: ublk: forbid multiple data copy modes
selftests: ublk: don't share backing files between ublk servers
selftests: ublk: use auto_zc for PER_IO_DAEMON tests in stress_04
selftests: ublk: fix fio arguments in run_io_and_recover()
selftests: ublk: remove unused ios map in seq_io.bt
selftests: ublk: correct last_rw map type in seq_io.bt
selftests: ublk: fix overflow in ublk_queue_auto_zc_fallback()
block: move around bio flagging helpers
|
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ABS_SND_PROFILE used to describe the state of a multi-value sound profile
switch. This will be used for the alert-slider on OnePlus phones or other
phones.
Profile values added as SND_PROFLE_(SILENT|VIBRATE|RING) identifiers
to input-event-codes.h so they can be used from DTS.
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Guido Günther <agx@sigxcpu.org> # oneplus,fajita & oneplus,enchilada
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Link: https://patch.msgid.link/20251113-op6-tri-state-v8-1-54073f3874bc@ixit.cz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three issues in the power capping code including one recent
regression and a runtime PM framework regression introduced during the
6.17 development cycle:
- Fix CPU hotplug locking deadlock reported by lockdep after a recent
update of the Intel RAPL power capping driver (Srinivas Pandruvada)
- Fix sscanf() error return value handling in the power capping core
and a race condition in register_control_type() (Sumeet Pawnikar)
- Fix a concurrent bit field update issue in the runtime PM core code
by only updating the bit field in question when runtime PM is
disabled (Rafael Wysocki)"
* tag 'pm-6.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: intel_rapl: Fix possible recursive lock warning
PM: runtime: Do not clear needs_force_resume with enabled runtime PM
powercap: fix sscanf() error return value handling
powercap: fix race condition in register_control_type()
|
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter and CAN.
Current release - regressions:
- netfilter: nf_conncount: fix leaked ct in error paths
- sched: act_mirred: fix loop detection
- sctp: fix potential deadlock in sctp_clone_sock()
- can: fix build dependency
- eth: mlx5e: do not update BQL of old txqs during channel
reconfiguration
Previous releases - regressions:
- sched: ets: always remove class from active list before deleting it
- inet: frags: flush pending skbs in fqdir_pre_exit()
- netfilter: nf_nat: remove bogus direction check
- mptcp:
- schedule rtx timer only after pushing data
- avoid deadlock on fallback while reinjecting
- can: gs_usb: fix error handling
- eth:
- mlx5e:
- avoid unregistering PSP twice
- fix double unregister of HCA_PORTS component
- bnxt_en: fix XDP_TX path
- mlxsw: fix use-after-free when updating multicast route stats
Previous releases - always broken:
- ethtool: avoid overflowing userspace buffer on stats query
- openvswitch: fix middle attribute validation in push_nsh() action
- eth:
- mlx5: fw_tracer, validate format string parameters
- mlxsw: spectrum_router: fix neighbour use-after-free
- ipvlan: ignore PACKET_LOOPBACK in handle_mode_l2()
Misc:
- Jozsef Kadlecsik retires from maintaining netfilter
- tools: ynl: fix build on systems with old kernel headers"
* tag 'net-6.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
net: hns3: add VLAN id validation before using
net: hns3: using the num_tqps to check whether tqp_index is out of range when vf get ring info from mbx
net: hns3: using the num_tqps in the vf driver to apply for resources
net: enetc: do not transmit redirected XDP frames when the link is down
selftests/tc-testing: Test case exercising potential mirred redirect deadlock
net/sched: act_mirred: fix loop detection
sctp: Clear inet_opt in sctp_v6_copy_ip_options().
sctp: Fetch inet6_sk() after setting ->pinet6 in sctp_clone_sock().
net/handshake: duplicate handshake cancellations leak socket
net/mlx5e: Don't include PSP in the hard MTU calculations
net/mlx5e: Do not update BQL of old txqs during channel reconfiguration
net/mlx5e: Trigger neighbor resolution for unresolved destinations
net/mlx5e: Use ip6_dst_lookup instead of ipv6_dst_lookup_flow for MAC init
net/mlx5: Serialize firmware reset with devlink
net/mlx5: fw_tracer, Handle escaped percent properly
net/mlx5: fw_tracer, Validate format string parameters
net/mlx5: Drain firmware reset in shutdown callback
net/mlx5: fw reset, clear reset requested on drain_fw_reset
net: dsa: mxl-gsw1xx: manually clear RANEG bit
net: dsa: mxl-gsw1xx: fix .shutdown driver operation
...
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The exec and vm_bind ioctl allow userspace to specify an arbitrary
num_syncs value. Without bounds checking, a very large num_syncs
can force an excessively large allocation, leading to kernel warnings
from the page allocator as below.
Introduce DRM_XE_MAX_SYNCS (set to 1024) and reject any request
exceeding this limit.
"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1217 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof+0x2f8/0x2180 mm/page_alloc.c:5124
...
Call Trace:
<TASK>
alloc_pages_mpol+0xe4/0x330 mm/mempolicy.c:2416
___kmalloc_large_node+0xd8/0x110 mm/slub.c:4317
__kmalloc_large_node_noprof+0x18/0xe0 mm/slub.c:4348
__do_kmalloc_node mm/slub.c:4364 [inline]
__kmalloc_noprof+0x3d4/0x4b0 mm/slub.c:4388
kmalloc_noprof include/linux/slab.h:909 [inline]
kmalloc_array_noprof include/linux/slab.h:948 [inline]
xe_exec_ioctl+0xa47/0x1e70 drivers/gpu/drm/xe/xe_exec.c:158
drm_ioctl_kernel+0x1f1/0x3e0 drivers/gpu/drm/drm_ioctl.c:797
drm_ioctl+0x5e7/0xc50 drivers/gpu/drm/drm_ioctl.c:894
xe_drm_ioctl+0x10b/0x170 drivers/gpu/drm/xe/xe_device.c:224
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:598 [inline]
__se_sys_ioctl fs/ioctl.c:584 [inline]
__x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xbb/0x380 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
...
"
v2: Add "Reported-by" and Cc stable kernels.
v3: Change XE_MAX_SYNCS from 64 to 1024. (Matt & Ashutosh)
v4: s/XE_MAX_SYNCS/DRM_XE_MAX_SYNCS/ (Matt)
v5: Do the check at the top of the exec func. (Matt)
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Reported-by: Koen Koning <koen.koning@intel.com>
Reported-by: Peter Senna Tschudin <peter.senna@linux.intel.com>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6450
Cc: <stable@vger.kernel.org> # v6.12+
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michal Mrozek <michal.mrozek@intel.com>
Cc: Carl Zhang <carl.zhang@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Ivan Briano <ivan.briano@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251205234715.2476561-5-shuicheng.lin@intel.com
(cherry picked from commit b07bac9bd708ec468cd1b8a5fe70ae2ac9b0a11c)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
|
|
With the RAPL PMU addition, there is a recursive locking when CPU online
callback function calls rapl_package_add_pmu(). Here cpu_hotplug_lock
is already acquired by cpuhp_thread_fun() and rapl_package_add_pmu()
tries to acquire again.
<4>[ 8.197433] ============================================
<4>[ 8.197437] WARNING: possible recursive locking detected
<4>[ 8.197440] 6.19.0-rc1-lgci-xe-xe-4242-05b7c58b3367dca84+ #1 Not tainted
<4>[ 8.197444] --------------------------------------------
<4>[ 8.197447] cpuhp/0/20 is trying to acquire lock:
<4>[ 8.197450] ffffffff83487870 (cpu_hotplug_lock){++++}-{0:0}, at:
rapl_package_add_pmu+0x37/0x370 [intel_rapl_common]
<4>[ 8.197463]
but task is already holding lock:
<4>[ 8.197466] ffffffff83487870 (cpu_hotplug_lock){++++}-{0:0}, at:
cpuhp_thread_fun+0x6d/0x290
<4>[ 8.197477]
other info that might help us debug this:
<4>[ 8.197480] Possible unsafe locking scenario:
<4>[ 8.197483] CPU0
<4>[ 8.197485] ----
<4>[ 8.197487] lock(cpu_hotplug_lock);
<4>[ 8.197490] lock(cpu_hotplug_lock);
<4>[ 8.197493]
*** DEADLOCK ***
..
..
<4>[ 8.197542] __lock_acquire+0x146e/0x2790
<4>[ 8.197548] lock_acquire+0xc4/0x2c0
<4>[ 8.197550] ? rapl_package_add_pmu+0x37/0x370 [intel_rapl_common]
<4>[ 8.197556] cpus_read_lock+0x41/0x110
<4>[ 8.197558] ? rapl_package_add_pmu+0x37/0x370 [intel_rapl_common]
<4>[ 8.197561] rapl_package_add_pmu+0x37/0x370 [intel_rapl_common]
<4>[ 8.197565] rapl_cpu_online+0x85/0x87 [intel_rapl_msr]
<4>[ 8.197568] ? __pfx_rapl_cpu_online+0x10/0x10 [intel_rapl_msr]
<4>[ 8.197570] cpuhp_invoke_callback+0x41f/0x6c0
<4>[ 8.197573] ? cpuhp_thread_fun+0x6d/0x290
<4>[ 8.197575] cpuhp_thread_fun+0x1e2/0x290
<4>[ 8.197578] ? smpboot_thread_fn+0x26/0x290
<4>[ 8.197581] smpboot_thread_fn+0x12f/0x290
<4>[ 8.197584] ? __pfx_smpboot_thread_fn+0x10/0x10
<4>[ 8.197586] kthread+0x11f/0x250
<4>[ 8.197589] ? __pfx_kthread+0x10/0x10
<4>[ 8.197592] ret_from_fork+0x344/0x3a0
<4>[ 8.197595] ? __pfx_kthread+0x10/0x10
<4>[ 8.197597] ret_from_fork_asm+0x1a/0x30
<4>[ 8.197604] </TASK>
Fix this issue in the same way as rapl powercap package domain is added
from the same CPU online callback by introducing another interface which
doesn't call cpus_read_lock(). Add rapl_package_add_pmu_locked() and
rapl_package_remove_pmu_locked() which don't call cpus_read_lock().
Fixes: 748d6ba43afd ("powercap: intel_rapl: Enable MSR-based RAPL PMU support")
Reported-by: Borah, Chaitanya Kumar <chaitanya.kumar.borah@intel.com>
Closes: https://lore.kernel.org/linux-pm/5427ede1-57a0-43d1-99f3-8ca4b0643e82@intel.com/T/#u
Tested-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Tested-by: RavitejaX Veesam <ravitejax.veesam@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20251217153455.3560176-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
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blkdev_pr_read_keys() takes num_keys from userspace and uses it to
calculate the allocation size for keys_info via struct_size(). While
there is a check for SIZE_MAX (integer overflow), there is no upper
bound validation on the allocation size itself.
A malicious or buggy userspace can pass a large num_keys value that
doesn't trigger overflow but still results in an excessive allocation
attempt, causing a warning in the page allocator when the order exceeds
MAX_PAGE_ORDER.
Fix this by introducing PR_KEYS_MAX to limit the number of keys to
a sane value. This makes the SIZE_MAX check redundant, so remove it.
Also switch to kvzalloc/kvfree to handle larger allocations gracefully.
Fixes: 22a1ffea5f80 ("block: add IOC_PR_READ_KEYS ioctl")
Tested-by: syzbot+660d079d90f8a1baf54d@syzkaller.appspotmail.com
Reported-by: syzbot+660d079d90f8a1baf54d@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=660d079d90f8a1baf54d
Link: https://lore.kernel.org/all/20251212013510.3576091-1-kartikey406@gmail.com/T/ [v1]
Signed-off-by: Deepanshu Kartikey <kartikey406@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
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Pull bpf fixes from Alexei Starovoitov:
- Fix BPF builds due to -fms-extensions. selftests (Alexei
Starovoitov), bpftool (Quentin Monnet).
- Fix build of net/smc when CONFIG_BPF_SYSCALL=y, but CONFIG_BPF_JIT=n
(Geert Uytterhoeven)
- Fix livepatch/BPF interaction and support reliable unwinding through
BPF stack frames (Josh Poimboeuf)
- Do not audit capability check in arm64 JIT (Ondrej Mosnacek)
- Fix truncated dmabuf BPF iterator reads (T.J. Mercier)
- Fix verifier assumptions of bpf_d_path's output buffer (Shuran Liu)
- Fix warnings in libbpf when built with -Wdiscarded-qualifiers under
C23 (Mikhail Gavrilov)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: add regression test for bpf_d_path()
bpf: Fix verifier assumptions of bpf_d_path's output buffer
selftests/bpf: Add test for truncated dmabuf_iter reads
bpf: Fix truncated dmabuf iterator reads
x86/unwind/orc: Support reliable unwinding through BPF stack frames
bpf: Add bpf_has_frame_pointer()
bpf, arm64: Do not audit capability check in do_jit()
libbpf: Fix -Wdiscarded-qualifiers under C23
bpftool: Fix build warnings due to MS extensions
net: smc: SMC_HS_CTRL_BPF should depend on BPF_JIT
selftests/bpf: Add -fms-extensions to bpf build flags
|
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Pull shmem rename fixes from Al Viro:
"A couple of shmem rename fixes - recent regression from tree-in-dcache
series and older breakage from stable directory offsets stuff"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
shmem: fix recovery on rename failures
shmem_whiteout(): fix regression from tree-in-dcache series
|
|
maple_tree insertions can fail if we are seriously short on memory;
simple_offset_rename() does not recover well if it runs into that.
The same goes for simple_offset_rename_exchange().
Moreover, shmem_whiteout() expects that if it succeeds, the caller will
progress to d_move(), i.e. that shmem_rename2() won't fail past the
successful call of shmem_whiteout().
Not hard to fix, fortunately - mtree_store() can't fail if the index we
are trying to store into is already present in the tree as a singleton.
For simple_offset_rename_exchange() that's enough - we just need to be
careful about the order of operations.
For simple_offset_rename() solution is to preinsert the target into the
tree for new_dir; the rest can be done without any potentially failing
operations.
That preinsertion has to be done in shmem_rename2() rather than in
simple_offset_rename() itself - otherwise we'd need to deal with the
possibility of failure after successful shmem_whiteout().
Fixes: a2e459555c5f ("shmem: stable directory offsets")
Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
|
When there is no fallback possibility available for the function topology
use it is better to try to create a profile for the card in best effort
manner, leaving out non supported links for example.
As an example: some laptops present SSPx-BT link but we don't have fragment
yet to support this. If we only have support for functional topology
without monolithic fallback then we would fail the card creation.
The reason why the monolithic topology works on the same device is that it
does not have the SSPx-BT link handled, it is ignored.
In case when there is no fallback possibility we should try to create the
card with links that we support as best effort instead of failing and
leaving the user without a card.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://patch.msgid.link/20251215101036.9370-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Hamza Mahfooz reports cpu soft lock-ups in
nft_chain_validate():
watchdog: BUG: soft lockup - CPU#1 stuck for 27s! [iptables-nft-re:37547]
[..]
RIP: 0010:nft_chain_validate+0xcb/0x110 [nf_tables]
[..]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_immediate_validate+0x36/0x50 [nf_tables]
nft_chain_validate+0xc9/0x110 [nf_tables]
nft_table_validate+0x6b/0xb0 [nf_tables]
nf_tables_validate+0x8b/0xa0 [nf_tables]
nf_tables_commit+0x1df/0x1eb0 [nf_tables]
[..]
Currently nf_tables will traverse the entire table (chain graph), starting
from the entry points (base chains), exploring all possible paths
(chain jumps). But there are cases where we could avoid revalidation.
Consider:
1 input -> j2 -> j3
2 input -> j2 -> j3
3 input -> j1 -> j2 -> j3
Then the second rule does not need to revalidate j2, and, by extension j3,
because this was already checked during validation of the first rule.
We need to validate it only for rule 3.
This is needed because chain loop detection also ensures we do not exceed
the jump stack: Just because we know that j2 is cycle free, its last jump
might now exceed the allowed stack size. We also need to update all
reachable chains with the new largest observed call depth.
Care has to be taken to revalidate even if the chain depth won't be an
issue: chain validation also ensures that expressions are not called from
invalid base chains. For example, the masquerade expression can only be
called from NAT postrouting base chains.
Therefore we also need to keep record of the base chain context (type,
hooknum) and revalidate if the chain becomes reachable from a different
hook location.
Reported-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Closes: https://lore.kernel.org/netfilter-devel/20251118221735.GA5477@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net/
Tested-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
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Pull ceph updates from Ilya Dryomov:
"We have a patch that adds an initial set of tracepoints to the MDS
client from Max, a fix that hardens osdmap parsing code from myself
(marked for stable) and a few assorted fixups"
* tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client:
rbd: stop selecting CRC32, CRYPTO, and CRYPTO_AES
ceph: stop selecting CRC32, CRYPTO, and CRYPTO_AES
libceph: make decode_pool() more resilient against corrupted osdmaps
libceph: Amend checking to fix `make W=1` build breakage
ceph: Amend checking to fix `make W=1` build breakage
ceph: add trace points to the MDS client
libceph: fix log output race condition in OSD client
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
- Fix error code in the irqchip/mchp-eic driver
- Fix setup_percpu_irq() affinity assumptions
- Remove the unused irq_domain_add_tree() function
* tag 'irq-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()
irqdomain: Delete irq_domain_add_tree()
genirq: Allow NULL affinity for setup_percpu_irq()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc core fixes from Ingo Molnar:
- Improve bug reporting
- Suppress W=1 format warning
- Improve rseq scalability on Clang builds
* tag 'core-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rseq: Always inline rseq_debug_syscall_return()
bug: Hush suggest-attribute=format for __warn_printf()
bug: Let report_bug_entry() provide the correct bugaddr
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This has been unused since it was added 11 years ago in:
d17d8f9dedb9 ("x86/mm: Add tracepoints for TLB flushes")
Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Link: https://patch.msgid.link/20251212-tlb-trace-fix-v2-2-d322e0ad9b69@columbia.edu
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When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush
tracepoint, the enum was not exported to user-space. Add it to the
appropriate macro definition to enable parsing by userspace tools, as
per:
Link: https://lore.kernel.org/all/20150403013802.220157513@goodmis.org
[ mingo: Capitalize IPI, etc. ]
Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU")
Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Rik van Riel <riel@surriel.com>
Link: https://patch.msgid.link/20251212-tlb-trace-fix-v2-1-d322e0ad9b69@columbia.edu
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc updates from Andrew Morton:
"There are no significant series in this small merge. Please see the
individual changelogs for details"
[ Editor's note: it's mainly ocfs2 and a couple of random fixes ]
* tag 'mm-nonmm-stable-2025-12-11-11-47' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: memfd_luo: add CONFIG_SHMEM dependency
mm: shmem: avoid build warning for CONFIG_SHMEM=n
ocfs2: fix memory leak in ocfs2_merge_rec_left()
ocfs2: invalidate inode if i_mode is zero after block read
ocfs2: avoid -Wflex-array-member-not-at-end warning
ocfs2: convert remaining read-only checks to ocfs2_emergency_state
ocfs2: add ocfs2_emergency_state helper and apply to setattr
checkpatch: add uninitialized pointer with __free attribute check
args: fix documentation to reflect the correct numbers
ocfs2: fix kernel BUG in ocfs2_find_victim_chain
liveupdate: luo_core: fix redundant bound check in luo_ioctl()
ocfs2: validate inline xattr size and entry count in ocfs2_xattr_ibody_list
fs/fat: remove unnecessary wrapper fat_max_cache()
ocfs2: replace deprecated strcpy with strscpy
ocfs2: check tl_used after reading it from trancate log inode
liveupdate: luo_file: don't use invalid list iterator
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- "powerpc/pseries/cmm: two smaller fixes" (David Hildenbrand)
fixes a couple of minor things in ppc land
- "Improve folio split related functions" (Zi Yan)
some cleanups and minorish fixes in the folio splitting code
* tag 'mm-stable-2025-12-11-11-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/damon/tests/core-kunit: avoid damos_test_commit stack warning
mm: vmscan: correct nr_requested tracing in scan_folios
MAINTAINERS: add idr core-api doc file to XARRAY
mm/hugetlb: fix incorrect error return from hugetlb_reserve_pages()
mm: fix CONFIG_STACK_GROWSUP typo in mm.h
mm/huge_memory: fix folio split stats counting
mm/huge_memory: make min_order_for_split() always return an order
mm/huge_memory: replace can_split_folio() with direct refcount calculation
mm/huge_memory: change folio_split_supported() to folio_check_splittable()
mm/sparse: fix sparse_vmemmap_init_nid_early definition without CONFIG_SPARSEMEM
powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages
powerpc/pseries/cmm: call balloon_devinfo_init() also without CONFIG_BALLOON_COMPACTION
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Brown paper bag time. This is a silly oversight where I missed to drop
the error condition checking to ensure we clean up on early error
returns. I have an internal unit testset coming up for this which will
catch all such issues going forward.
Reported-by: Chris Mason <clm@fb.com>
Reported-by: Jeff Layton <jlayton@kernel.org>
Fixes: 011703a9acd7 ("file: add FD_{ADD,PREPARE}()")
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull further i3c update from Alexandre Belloni:
"We are removing a legacy API callback and having this sooner rather
than later will help ensuring no one introduces a new driver using it.
I've also added patches removing the "__free(...) = NULL" pattern
because I'm sure we won't avoid people sending those following the
mailing list discussion..."
* tag 'i3c/for-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
i3c: adi: Fix confusing cleanup.h syntax
i3c: master: Fix confusing cleanup.h syntax
i3c: master: cleanup callback .priv_xfers()
i3c: master: switch to use new callback .i3c_xfers() from .priv_xfers()
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- stop setting max_user_freq from the individual drivers as this has
not been hardware related for a while
New drivers:
- Andes ATCRTC100
- Apple SMC
- Nvidia VRS
Drivers:
- renesas-rtca3: add RZ/V2H support
- tegra: add ACPI support"
* tag 'rtc-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (34 commits)
rtc: spacemit: MFD_SPACEMIT_P1 as dependencies
rtc: atcrtc100: Fix signedness bug in probe()
rtc: max31335: Fix ignored return value in set_alarm
rtc: gamecube: Check the return value of ioremap()
Documentation: ABI: testing: Fix "upto" typo in rtc-cdev
rtc: Add new rtc-macsmc driver for Apple Silicon Macs
dt-bindings: rtc: Add Apple SMC RTC
MAINTAINERS: drop unneeded file entry in NVIDIA VRS RTC DRIVER
rtc: isl12026: Add id_table
rtc: renesas-rtca3: Add support for multiple reset lines
dt-bindings: rtc: renesas,rz-rtca3: Add RZ/V2H support
rtc: tegra: Replace deprecated SIMPLE_DEV_PM_OPS
rtc: tegra: Add ACPI support
rtc: tegra: Use devm_clk_get_enabled() in probe
rtc: Kconfig: add MC34708 to mc13xxx help text
rtc: s35390a: use u8 instead of char for register buffer
rtc: nvvrs: add NVIDIA VRS RTC device driver
dt-bindings: rtc: Document NVIDIA VRS RTC
rtc: atcrtc100: Add ATCRTC100 RTC driver
MAINTAINERS: Add entry for ATCRTC100 RTC driver
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
- Support for multiple sections in a BPT stream
- Align DMA frame with BPT frames
- Qualcomm support for v3.1.0 controllers
* tag 'soundwire-6.19-rc1_updated' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: intel_ace2x: handle multi BPT sections
soundwire: pass sdw_bpt_section to cdns BPT helpers
soundwire: introduce BPT section
soundwire: intel_ace2x: add fake frame to BRA read command
soundwire: cadence_master: add fake_size parameter to sdw_cdns_prepare_read_dma_buffer
ASoC: SOF: Intel: export hda_sdw_bpt_get_buf_size_aligment
soundwire: cadence: export sdw_cdns_bpt_find_bandwidth
soundwire: cadence_master: set data_per_frame as frame capability
soundwire: only compute BPT stream in sdw_compute_dp0_port_params
soundwire: cadence_master: make frame index trace more readable
soundwire: qcom: adding support for v3.1.0
dt-bindings: soundwire: qcom: Document v3.1.0 version of IP block
soundwire: qcom: prepare for v3.x
soundwire: qcom: deprecate qcom,din/out-ports
dt-bindings: soundwire: qcom: deprecate qcom,din/out-ports
soundwire: qcom: remove unused rd_fifo_depth
of: base: Add of_property_read_u8_index
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only slightly large change is the enablement of CIX HD-audio
controller, which took a bit time to be cooked up, while most of other
changes are device-specific small trivial fixes:
- Default disablement of the kconfig for decades old pre-release
alsa-lib PCM API; it's only the default config value change, so it
can't lead to any regressions for the existing setups
- Support for CIX HD-audio controller
- A few ASoC ACP fixes
- Fixes for ASoC cirrus, bcm, wcd, qcom, ak platforms
- Trivial hardening for FireWire and USB-audio
- HD-audio Intel binding fix and quirks"
* tag 'sound-fix-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
ALSA: hda/tas2781: Add new quirk for HP new project
ALSA: hda: cix-ipbloq: Use modern PM ops
ALSA: hda: intel-dsp-config: Prefer legacy driver as fallback
ASoC: amd: acp: update tdm channels for specific DAI
ASoC: cs35l56: Fix incorrect select SND_SOC_CS35L56_CAL_SYSFS_COMMON
ALSA: firewire-motu: add bounds check in put_user loop for DSP events
ASoC: cs35l41: Always return 0 when a subsystem ID is found
ALSA: uapi: Fix typo in asound.h comment
ALSA: Do not build obsolete API
ALSA: hda: add CIX IPBLOQ HDA controller support
ALSA: hda/core: add addr_offset field for bus address translation
ALSA: hda: dt-bindings: add CIX IPBLOQ HDA controller support
ALSA: hda/realtek: Add support for ASUS UM3406GA
ALSA: hda/realtek: Add support for HP Turbine Laptops
ALSA: usb-audio: Initialize status1 to fix uninitialized symbol errors
ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events
ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi()
ASoC: cros_ec_codec: Remove unnecessary selection of CRYPTO
ASoc: qcom: q6afe: fix bad guard conversion
ASoC: rockchip: Fix Wvoid-pointer-to-enum-cast warning (again)
...
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Remove the .priv_xfers() callback from the framework after all master
controller drivers have switched to use the new .i3c_xfers() callback.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/20251203-i3c_xfer_cleanup_master-v2-2-7dd94d04ee2d@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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We'll need bio_flagged() earlier in bio.h for later patches, move it
together with all related helpers, and mark the bio_flagged()'s bio
argument as const.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Fix 'nlink' attribute update races when unlinking a file
- Add missing initialisers for the directory verifier in various
places
- Don't regress the NFSv4 open state due to misordered racing replies
- Ensure the NFSv4.x callback server uses the correct transport
connection
- Fix potential use-after-free races when shutting down the NFSv4.x
callback server
- Fix a pNFS layout commit crash
- Assorted fixes to ensure correct propagation of mount options when
the client crosses a filesystem boundary and triggers the VFS
automount code
- More localio fixes
Features and cleanups:
- Add initial support for basic directory delegations
- SunRPC back channel code cleanups"
* tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
NFSv4: Handle NFS4ERR_NOTSUPP errors for directory delegations
nfs/localio: remove 61 byte hole from needless ____cacheline_aligned
nfs/localio: remove alignment size checking in nfs_is_local_dio_possible
NFS: Fix up the automount fs_context to use the correct cred
NFS: Fix inheritance of the block sizes when automounting
NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
Revert "nfs: ignore SB_RDONLY when mounting nfs"
Revert "nfs: clear SB_RDONLY before getting superblock"
Revert "nfs: ignore SB_RDONLY when remounting nfs"
NFS: Add a module option to disable directory delegations
NFS: Shortcut lookup revalidations if we have a directory delegation
NFS: Request a directory delegation during RENAME
NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK
NFS: Add support for sending GDD_GETATTR
NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
NFSv4.1: protect destroying and nullifying bc_serv structure
SUNRPC: new helper function for stopping backchannel server
SUNRPC: cleanup common code in backchannel request
NFSv4.1: pass transport for callback shutdown
NFSv4: ensure the open stateid seqid doesn't go backwards
...
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To get the full benefit of:
eaa9088d568c ("rseq: Use static branch for syscall exit debug when GENERIC_IRQ_ENTRY=y")
clang needs an __always_inline instead of a plain inline qualifier:
$ for i in {1..10}; do taskset -c 4 perf5 bench syscall basic -l 100000000 | grep "ops/sec"; done
Before After
ops/sec 15424491 15872221 +2.9%
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251205100753.4073221-1-edumazet@google.com
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The macro uses up to 15 arguments. Reflect this in the top level comment.
Link: https://lkml.kernel.org/r/20251201201018.765475-1-andriy.shevchenko@linux.intel.com
Fixes: d51e783c17ba ("lsm: count the LSMs enabled at compile time")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- A stable fix for performance regression in tests that perform
kmem_cache_destroy() a lot, due to unnecessarily wide scope of
kvfree_rcu_barrier() (Harry Yoo)
* tag 'slab-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm/slab: introduce kvfree_rcu_barrier_on_cache() for cache destruction
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