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1,464,947 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
bc29fe1c61 |
three ksmbd server fixes
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||
Jamal Hadi Salim
|
47d7f70512 |
net/sched: cls_route: fix fastmap use-after-free on filter
The route4 classifier maintains a 16-slot fastmap cache that stores raw
struct route4_filter pointers indexed by (id, iif). The reader
(route4_classify) populates this cache via route4_set_fastmap() for every
classified packet that hits a filter. The writer (route4_delete,
route4_change) clears the cache via route4_reset_fastmap() before
RCU-deferred kfree of the filter.
This creates a UAF race:
1. Reader walks the RCU-protected bucket chain, finds filter f
2. Writer unlinks f, calls route4_reset_fastmap(), then tcf_queue_work()
3. Reader calls route4_set_fastmap() and writes f into the cache
*after* the writer's reset, caching a pointer about to be freed
4. After the RCU grace period, kfree(f) executes
5. Next classified packet on the same (id, iif) tuple hits the stale
fastmap entry and reads f->res from freed memory
Reproduced with an mdelay(100) accelerator in route4_set_fastmap() and a
concurrent add/delete stress test (provided by both zdi and Santosh).
Both triggered KASAN slab-use-after-free reports in the route4 fastmap
paths.
Fix:
Introduce a per-filter boolean dying flag to suppress stale fastmap
republishing by in-flight readers.
Fixes:
|
||
|
Linus Torvalds
|
f30ca2ce7d |
ata fixes for 7.2-rc6
- Fix PCI resource initialization in the sata_mv driver to keep legacy
Marvell boards functional (Rosen).
- Fix ahci_ceva driver initialization error path (Radhey).
- Fix libata header file to remove a kernel doc compilation warning
(Randy).
- Increase the timeout for the STANDBY IMMEDIATE command to avoid
suspend failures with drives that are slow to respond to this command
(Matt).
- Fixes for the handling of timed out commands in the presence of
deferred non-NCQ commands, to avoid excessive delays in executing the
error handler (me).
- Disable link power management for a couple of WD drives that have
been identified as not functioning properly when power management is
used (Niklas).
- Fix the device iteration loop when checking for link power management
support to correctly handle port multiplier setups (Niklas).
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Merge tag 'ata-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Damien Le Moal:
- Fix PCI resource initialization in the sata_mv driver to keep legacy
Marvell boards functional (Rosen)
- Fix ahci_ceva driver initialization error path (Radhey)
- Fix libata header file to remove a kernel doc compilation warning
(Randy)
- Increase the timeout for the STANDBY IMMEDIATE command to avoid
suspend failures with drives that are slow to respond to this command
(Matt)
- Fixes for the handling of timed out commands in the presence of
deferred non-NCQ commands, to avoid excessive delays in executing the
error handler (me)
- Disable link power management for a couple of WD drives that have
been identified as not functioning properly when power management is
used (Niklas)
- Fix the device iteration loop when checking for link power management
support to correctly handle port multiplier setups (Niklas)
* tag 'ata-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-sata: fix ata_scsi_lpm_supported() iteration
ata: libata-core: Disable LPM on WD Green 2.5 480GB
ata: libata-core: Disable LPM on some WD drives
scsi: libsas: terminate deferred commands on time out
ata: libata-scsi: schedule deferred atapi command
ata: libata-scsi: terminate deferred commands on time out
ata: libata-eh: Increase STANDBY IMMEDIATE timeout
ata: libata: avoid kernel-doc warnings
ata: ahci_ceva: fix error paths in ceva_ahci_platform_enable_resources()
ata: sata_mv: accept 1 or 2 resources in platform probe
|
||
Zhiling Zou
|
653d7ddf6c |
inet: frags: publish queues before arming timer
inet_frag_create() arms the fragment queue timer before inserting the
queue into the fqdir rhashtable. If the namespace fragment timeout is
zero or negative, the timer can run before the queue is published.
The timer callback then marks the queue complete, tries to remove a node
that is not in the hash table yet, and drops the anticipated hash
reference. Creation can subsequently publish the completed queue without
restoring that reference, leaving a stale hash node after the caller drops
the remaining reference.
Publish the queue first and arm the timer while holding the queue lock.
This makes timer expiry wait until the queue is visible in the hash table,
so inet_frag_kill() can remove the node and balance the hash reference.
Fixes:
|
||
Mark Brown
|
ee145d35e4 |
ASoC: codecs: lpass-{tx,wsa}-macro: fix enum kcontrol accesses
Dawid Wróbel <me@dawidwrobel.com> says: Both drivers access enumerated controls through value.integer.value[0] instead of value.enumerated.item[0]. The same bug was fixed in rx-macro and va-macro in 2022 ( |
||
Dawid Wróbel
|
56f24311fd |
ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses
EAR SPKR PA Gain" and the four "WSA RX* Mux" controls are enumerated, but their get and put callbacks access the value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixed in the sibling drivers by commit |
||
|
Dawid Wróbel
|
1ba381759e |
ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses
The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int). This same pattern was fixed in the sibling drivers by commit |
||
Masami Hiramatsu (Google)
|
260b20d9b7 |
ring-buffer: Fix subbuf_ids memory leak in rb_allocate_cpu_buffer() error path
In rb_allocate_cpu_buffer(), cpu_buffer->subbuf_ids is allocated using
kcalloc() when buffer->remote is non-NULL. If a subsequent page allocation
fails (e.g., ring_buffer_desc_page() returns NULL or rb_allocate_pages()
fails), execution jumps to fail_free_reader.
While __free(kfree) automatically frees the outer cpu_buffer structure
at scope exit, kfree(cpu_buffer) does not recursively free nested heap
pointers such as cpu_buffer->subbuf_ids, resulting in a memory leak.
Fix this by explicitly freeing cpu_buffer->subbuf_ids in the
fail_free_reader error unwinding path when cpu_buffer->remote is set.
Link: https://patch.msgid.link/178550740672.380917.6067449683620196150.stgit@devnote2
Fixes:
|
||
|
Linus Torvalds
|
f01618fd79 |
block-7.2-20260731
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Baul Lee
|
63488dba65 |
net: bridge: mrp: fix uninitialised bytes on the wire
br_mrp_alloc_test_skb() builds MRP test frames on an skb from
dev_alloc_skb(), which does not clear the linear data area. On the MRA
ring-role branch the sub-option TLV header is appended with
sub_tlv = skb_put(skb, sizeof(*sub_tlv));
sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR;
so sub_tlv->length is never written, and the two trailing alignment bytes
are appended with a bare skb_put() that does not clear them either. The
neighbouring oui and sub_opt regions are explicitly zeroed, so three
uninitialised bytes are left in every MRA MRP_Test frame that goes out.
Put the sub-option TLV header and the alignment padding in a single
skb_put_zero(), which clears both. The AUTO_MGR sub-TLV carries no
payload, so the zeroed length field is already the value it should have.
Fixes:
|
||
Mahanta Jambigi
|
9762450949 |
net/smc: fix qentry overwrite for CONFIRM_LINK and ADD_LINK_CONT in smc_llc_event_handler()
The SMC_LLC_CONFIRM_LINK / SMC_LLC_ADD_LINK_CONT branch in
smc_llc_event_handler() stores an incoming qentry into the local LLC flow
without first checking whether a qentry is already pending. If a malicious or
buggy peer sends a second CONFIRM_LINK or ADD_LINK_CONT request while a flow is
active and flow->qentry is already set, smc_llc_flow_qentry_set() overwrites the
pointer without freeing the previous allocation, leaking one kmalloc-96 object
per spurious message.
The sibling SMC_LLC_DELETE_LINK branch already has the correct !flow->qentry
guard. Apply the same guard to the CONFIRM_LINK/ADD_LINK_CONT branch so that a
duplicate message when qentry is already occupied falls through to break and is
freed by the kfree(qentry) at the out: label, rather than silently leaking the
existing allocation.
The response direction (smc_llc_rx_response()) is unaffected: it already guards
with flow->qentry at the equivalent site and drops duplicate responses
correctly.
Fixes:
|
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|
Linus Torvalds
|
5d0c32d6ec |
io_uring-7.2-20260731
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|
Linus Torvalds
|
680d49d84c |
drm fixes for 7.2-rc6
dp: - Restrict some DP bandwidth calculations to HDMI DFP. bridge: - Fix small leak in bridge/display-connector mediatek: - Check CRTC state before freeing - mtk_hdmi: Fix DDC adapter double put in v2 - mtk_hdmi_common: take i2c adapter module reference - mtk_dsi: Enable HS clock only at pre-enable - ovl_adaptor: balance component registrations amdgpu: - VCN 5.3 fix - UserQ fixes - GEM close optimization - HDMI AV mute fix - UML build fixes - GFXOFF residency metrics fixes - SMU 15 fixes - debug_vm fix - PSP 15 fixes - NBIO 7.11.5 fix - pptable use after free fix - gpu metrics fetch fix - DC viewport fix - DML2.1 fix - i2c retimer spam fix - UMD profile pstate fix - Power metrics format cleanup - GTT size fix on APUs - DC context logging fix - PM sysfs fix for APUs - Follow on pageflip timeout fix amdkfd: - Various bounds checking fixes - Mutex locking fix i915/xe: - Check no-DMA huge-pte cases before DMA segment test - sink FRL rate fix - 200ms fix for TMDS scrambler status vmwgfx: - Improve various size checks and limit checks. - Fix oops when submitting invalid execbuf ioctl. - Correctly lock in vmfwgx fence signaling path. - More validation of execbuf ioctl. - Fix oops in vmwgfx vkms init failure path. - Overflow handling in shader path. panthor: - Improve firmware validation imagination: - Improve imagination trace points. qaic: - Fix QAIC transaction length check. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmptE3kACgkQDHTzWXnE hr6EDw/8C5sATWrFBST0pLzrmbn19pCtb9rU2T3TeSGNTMbELwBaH8HH9yyolglY Z2ukKpSsKxiqddedXAb6k2cLBBIfb9Du2Jw8WvqjI071Gz+VZA3UL/lyjPOaZuw6 xIj6QBYr5zyJYSupUwIamN49Q1C712UpTf1jIkX+Gzbumv8vvnezoT6MXXpYyDL3 vyPrPeTHOoa5giLuh6NL0pUAYuwZY1SDCVWOv7KtUTYdUZUhiKtE0TLN5YmSDPVS u6CS3l3fp2hRk0JWygOlNfTjTrNy3p0Y5A+wv45Rj7HNsRwkpaDhn6w8o9EEYkGk M9ZxTkjVHLCdeF7azMt2tZFWqU879xjz96YEX3oO+kbJyd2mCUZsDhmMfBeMIPkt Hur1qe+8r1/I0Q0NNjWkCvRL3ATcP9X8PVTk7tCbmZTsB286QXdYDMuHBMCAV3H7 8NjYirnvt2AVMajceKpy9rDwfvZEBmMZOsd5G8+/rHALrt+tnfYDVFCoMU9jY2rV +DNgFtQ/BVKBHj7GZKufpyZIfpdt+nMe2WpTCn6HnmFk72dl12muC6XjyFUMVWJR jrO4JZW3n11rmqTykPH6I9jJ2ts7596+BKopZBAuG26zi77jPDFrlT5jKj358Miu 6Z7sekYAeomRpdjtVh3HjDqLVxYpiDkxqm6xLvpXfDp3UbufWHU= =L5HJ -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-08-01' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Weekly pulls request. As expected there is more AMD this week since Alex was off last week, vmwgfx looks to have been hit with the AI stick a bit and mediatek as well. Otherwise some minor fixes across the board, the new normal definitely seems to be a thing. dp: - Restrict some DP bandwidth calculations to HDMI DFP bridge: - Fix small leak in bridge/display-connector mediatek: - Check CRTC state before freeing - mtk_hdmi: Fix DDC adapter double put in v2 - mtk_hdmi_common: take i2c adapter module reference - mtk_dsi: Enable HS clock only at pre-enable - ovl_adaptor: balance component registrations amdgpu: - VCN 5.3 fix - UserQ fixes - GEM close optimization - HDMI AV mute fix - UML build fixes - GFXOFF residency metrics fixes - SMU 15 fixes - debug_vm fix - PSP 15 fixes - NBIO 7.11.5 fix - pptable use after free fix - gpu metrics fetch fix - DC viewport fix - DML2.1 fix - i2c retimer spam fix - UMD profile pstate fix - Power metrics format cleanup - GTT size fix on APUs - DC context logging fix - PM sysfs fix for APUs - Follow on pageflip timeout fix amdkfd: - Various bounds checking fixes - Mutex locking fix i915/xe: - Check no-DMA huge-pte cases before DMA segment test - sink FRL rate fix - 200ms fix for TMDS scrambler status vmwgfx: - Improve various size checks and limit checks - Fix oops when submitting invalid execbuf ioctl - Correctly lock in vmfwgx fence signaling path - More validation of execbuf ioctl - Fix oops in vmwgfx vkms init failure path - Overflow handling in shader path panthor: - Improve firmware validation imagination: - Improve imagination trace points. qaic: - Fix QAIC transaction length check" * tag 'drm-fixes-2026-08-01' of https://gitlab.freedesktop.org/drm/kernel: (59 commits) drm/i915/hdmi: Poll for 200 msec for TMDS_Scrambler_Status drm/amd/display: Exit idle optimizations before programming drm/amd/pm: hide pp_table sysfs on APUs accel/qaic: use sizeof(*trans_hdr) for transaction length check drm/panthor: validate firmware interface structure sizes drm/xe/pt: check no-DMA huge-pte cases before DMA segment test drm/imagination: Update the trace point pvr_job_submit_fw() drm/i915/dp: Ignore the sink's DSC max FRL rate without a PCON DSC encoder drm/mediatek: ovl_adaptor: balance component registrations drm/mediatek: mtk_dsi: Enable HS clock only at pre-enable drm/dp: Read the PCON max FRL bandwidth only for HDMI DFPs drm/amd/display: use proper context for logging drm/amdgpu: cap GTT size to physical RAM on APUs drm/amd/pm: use milliwatts for GPU power sensors drm/amdgpu: restore UMD profile pstate after runtime resume drm/amd/display: Silence link_dpms I2C retimer failures drm/amdkfd: hold event_mutex while checkpointing CRIU events drm/amd/display: check if dml21_add_phantom_plane() is successful drm/amd/display: Fix divide-by-zero in calculate_mcache_setting on zero viewport drm/amd/display: Add AV mute wait frames to dce110_set_avmute ... |
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|
Linus Torvalds
|
a2cf4ef331 |
Devicetree fixes for v7.2, part 1:
- Fix NULL bus dereference in of_pci_range_parser_one() - Prevent OOB access when too many dynamic reserved memory regions are defined -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEktVUI4SxYhzZyEuo+vtdtY28YcMFAmptCRcACgkQ+vtdtY28 YcN4oQ/9GJYlymn6frwBmPiG7iVK8OQgvFClUn61/nTuyvaOv5mXDQzbRsP1TqMG xn+XqAww6XCT4k08bxVe1nORJAIkittVjXLcWLU4EnO7+rHFZnXpEeijWDqMuYT8 rbEArsFyC1u4Uk+TXMwd0lqTZNogrJWR1hXd+T4Kecv+ORVbBeKMdWPZkMdK/KTP h88iio1V489hdufVMLjcORoySh23i1qJ1qBgjHZIS0lpdBbg2JiXfLvUJHCWHRiU W2Ucrpz/Wq//86pBie+TWn0IisYOvTB8g/ZLnrG33iN7+HaQMxlP+Cs90V6T9cGi DQ64LPfvRQrr0KlZ1TxoEy9N2N3SQXJ3l/Hq+nK08B6xlHl+d67cSRzxra/6qs3Z 7scbD5K+K6A9MnSlLn4+wxOyocF/rMHBu+RUUdiO/PqHoFe0TpMR3GHpRysGcebG OPNbZ1dP8TGaG38wOKj+ZJldoNABO0Sox0/OMv1WNHFbbhoyoDDlajDxJua3lO3U X4NN/C0bS5EiGSqSZ5SpiAF85Qj13s0RPBB223bEG7PxBA7kfk0UnU/OQwkJLb2y 8GIuG4qWeCXQhcWqxBf++DhmS61LzY3D49qHD4c6oD7ji/3ZGeWR9yyI3o/PQcG+ Gvj4CrQTCicLYgiJxL4VvKuXhXy6JhuJQi/kddO6GfwEyC5IWek= =9x2Y -----END PGP SIGNATURE----- Merge tag 'devicetree-fixes-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Fix NULL bus dereference in of_pci_range_parser_one() - Prevent out-of-bounds access when too many dynamic reserved memory regions are defined * tag 'devicetree-fixes-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of/address: Fix NULL bus dereference in of_pci_range_parser_one() of: reserved_mem: prevent OOB when too many dynamic regions are defined |
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Linus Torvalds
|
de8c3b8e05 |
Hyper-V fixes for v7.2
-----BEGIN PGP SIGNATURE----- iQFHBAABCgAxFiEEIbPD0id6easf0xsudhRwX5BBoF4FAmps/3ITHHdlaS5saXVA a2VybmVsLm9yZwAKCRB2FHBfkEGgXoWQB/40sKuM2KWl3Ek6CnKgGLzaUrVTxW8x MTRyusPZ+AOJTtasC7LBTajCa/gXSHEebPdWFeA7jyPPrv3ZhRywBDHSZoSdzd7r sYfBGkXovfcgAV0jKrk65wupS6ymiZkO3xAngsIzxExHIa8JiuJXyQsHIYI/oH4K xs+/q9OlYVYP2f7UgC1XusuXlIx2Fixxr70//kyiuBOhPq32iu77CBbFm47Ac5JC kKq71AXnUlDrswIo8wOJCWmfRrq0s9837zDYnwrIGTw8GvOE9Z+xmvGx+StWy2jE bBTCzhliXUIxxByC5msothkFSVuPIKJkepwhKYaOEUsgeV1RdhQrDgJC =84+i -----END PGP SIGNATURE----- Merge tag 'hyperv-fixes-signed-20260731' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux Pull hyper-v fixes from Wei Liu: - Multiple fixes for the MSHV driver (Stanislav Kinsburskii, Wei Liu, Yi Xie, Yousef Alhouseen) - Multiple fixes for the VMBus driver (Hardik Garg, Michael Kelley, Sebastian Andrzej Siewior) * tag 'hyperv-fixes-signed-20260731' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: mshv_vtl: bounds-check cpu index in vtl mmap fault handler mshv: Publish VP to pt_vp_array before installing the file descriptor Drivers: hv: vmbus: add VTL2 redirect connection ID mshv: Order pt_vp_array publish against irqfd assertion path mshv: Fix missing error code on VP allocation failure mshv: Fix level-triggered check on uninitialized data mshv: Fix race in mshv_irqfd_deassign mshv: Use kfree_rcu in mshv_portid_free mshv: Fix sleeping under spinlock in mshv_portid_alloc mshv: Fix duplicate GSI detection for GSI 0 Drivers: hv: vmbus: Remove vmbus_irq_initialized Drivers: hv: vmbus: Replace lockdep_hardirq_threaded() with lockdep annotation mshv_vtl: fix fd leak in mshv_ioctl_create_vtl() mshv_vtl: clear hypercall output before copyout Drivers: hv: vmbus: Set DMA coherent mask for VMBus devices mshv: fix hv_input_get_system_property struct |
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|
Linus Torvalds
|
ce6ce829c8 |
RTLA fixes for v7.2
- Fix timerlat top actions triggering on signal Fix a bug in RTLA's timerlat top actions feature where on-threshold actions are triggered on any signal, regardless of whether a latency spike had actually occurred during the measurement. The return retval was checked for non-zero to do actions. But if a signal came in, it returns a negative and actions were being incorrectly triggered when they should not have been. -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCamzXpBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qnQHAQDso34IvlbyNqDUroLLfV7f+Qsikyvz OVxp9Q+b2F+57QD9H7k0OxDFfkycTFUpBaCKv1jmOXIqaGE9M1QbwE+eZgA= =3ND6 -----END PGP SIGNATURE----- Merge tag 'trace-tools-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull RTLA fix from Steven Rostedt: - Fix timerlat top actions triggering on signal Fix a bug in RTLA's timerlat top actions feature where on-threshold actions are triggered on any signal, regardless of whether a latency spike had actually occurred during the measurement. The return retval was checked for non-zero to do actions. But if a signal came in, it returns a negative and actions were being incorrectly triggered when they should not have been. * tag 'trace-tools-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: rtla/timerlat_top: Fix on-threshold actions firing on signal |
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Yi Xie
|
22dfdc17ce |
mshv_vtl: bounds-check cpu index in vtl mmap fault handler
cpu is taken from pgoff & 0xffff. cpu_online() does not reject cpu >= nr_cpu_ids, and per_cpu_ptr() can then walk off __per_cpu_offset. Signed-off-by: Yi Xie <xieyi@kylinos.cn> Reviewed-by: Naman Jain <namjain@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Stanislav Kinsburskii
|
72e3b0311a |
mshv: Publish VP to pt_vp_array before installing the file descriptor
mshv_partition_ioctl_create_vp() called anon_inode_getfd() before
publishing the new VP into partition->pt_vp_array. anon_inode_getfd()
includes fd_install(), so the fd was live in current->files before the
publish ran.
A concurrent MSHV_RUN_VP ioctl on that fd does not serialise against the
in-progress MSHV_CREATE_VP — it takes vp->vp_mutex, not the partition
mutex. Once the VP starts running and traps, mshv_intercept_isr() can look
up partition->pt_vp_array[vp_index] and observe NULL, silently dropping the
intercept message.
Split the fd creation: reserve an fd with get_unused_fd_flags(), create the
file with anon_inode_getfile(), publish the VP via smp_store_release(), and
finally call fd_install() as the userspace-visibility commit point.
Fixes:
|
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Hardik Garg
|
92d0593128 |
Drivers: hv: vmbus: add VTL2 redirect connection ID
VMBus sends CHANNELMSG_INITIATE_CONTACT through a Hyper-V message connection ID. Older protocol versions use VMBUS_MESSAGE_CONNECTION_ID, while protocol version 5.0 and newer normally use VMBUS_MESSAGE_CONNECTION_ID_4. For a VTL2 kernel using VMBus protocol 5.0 or newer, the host may expect INITIATE_CONTACT on either the redirect connection ID or VMBUS_MESSAGE_CONNECTION_ID_4. There is no capability indication that identifies which ID is active, so the driver must determine it at runtime. During VMBus negotiation, the redirect ID is tried first because it is used by VTL2 configurations with VMBus redirection enabled. If the redirect ID is unavailable, the host rejects it synchronously with HV_STATUS_INVALID_CONNECTION_ID, allowing fallback to the standard ID. Return a distinct error for an invalid Initiate Contact connection ID so this fallback does not mask other post-message failures or protocol-version rejections. Preserve the existing connection ID selection for older protocol versions or when running below VTL2. Signed-off-by: Hardik Garg <hargar@linux.microsoft.com> Reviewed-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Naman Jain <namjain@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Stanislav Kinsburskii
|
b098dc8692 |
mshv: Order pt_vp_array publish against irqfd assertion path
mshv_partition_ioctl_create_vp() initialises a VP struct (allocations,
mutex_init, init_waitqueue_head, page mappings) and then publishes the
pointer into partition->pt_vp_array. Several ISR paths read this array
locklessly: the intercept ISR, the two scheduler ISRs, and
mshv_try_assert_irq_fast() on the irqfd fast path.
Of these, only mshv_try_assert_irq_fast() can structurally race the
publish. It runs from an eventfd waker without holding pt_mutex, and
MSHV_IRQFD does not require the target lapic_apic_id (== vp_index) to
refer to an existing VP at registration time. A user can therefore
register an irqfd targeting a yet-to-be-created VP, then trigger
mshv_try_assert_irq_fast() concurrently with MSHV_CREATE_VP for the
same index. On weakly-ordered architectures the reader can observe a
non-NULL pointer in pt_vp_array before the initialising stores to the
VP struct become visible, leading to use of partially-initialised
fields (e.g. vp_register_page).
The other ISR readers cannot reach this race: the hypervisor will not
generate intercept or scheduler messages for a VP that has never been
told to run, and the user can only call MSHV_RUN_VP on the VP fd
returned by MSHV_CREATE_VP, which by construction is returned after
the publish. Leave those readers as plain loads.
Use smp_store_release() in mshv_partition_ioctl_create_vp() to publish
the pointer, and pair it with smp_load_acquire() in
mshv_try_assert_irq_fast(). On x86 these compile to plain accesses
under TSO; on ARM64 they emit one-instruction acquire/release barriers,
acceptable on this fast path.
The destroy-side path (destroy_partition() clearing pt_vp_array[i] to
NULL after kfree(vp)) has a separate ordering and lifetime concern
that is out of scope here.
Fixes:
|
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|
Stanislav Kinsburskii
|
f546be6a19 |
mshv: Fix missing error code on VP allocation failure
In mshv_partition_ioctl_create_vp(), when kzalloc for the VP struct
fails, the code jumps to the cleanup path without setting ret. At that
point ret is 0 from the preceding successful mshv_vp_stats_map() call,
so the function returns success to userspace despite having failed to
create the VP. No fd is installed and no VP is registered in pt_vp_array,
but userspace has no way to know the operation failed.
Set ret to -ENOMEM before jumping to the cleanup path.
Fixes:
|
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|
Stanislav Kinsburskii
|
0289a67cd7 |
mshv: Fix level-triggered check on uninitialized data
In mshv_irqfd_assign(), the level-triggered validation for resample
irqfds checks irqfd_lapic_irq.lapic_control.level_triggered before
mshv_irqfd_update() has populated the field. Since the irqfd struct is
zero-allocated, level_triggered is always 0 at that point, causing the
check to always reject resample irqfds with -EINVAL. This makes
level-triggered interrupt resampling — used to avoid interrupt storms
with assigned devices — completely non-functional.
Move the check after the mshv_irqfd_update() call, which resolves the
IRQ routing entry and populates irqfd_lapic_irq with the actual trigger
mode.
Fixes:
|
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|
Stanislav Kinsburskii
|
0762262ac3 |
mshv: Fix race in mshv_irqfd_deassign
mshv_irqfd_deactivate() and the hlist traversal of pt_irqfds_list
require pt->pt_irqfds_lock to be held, but mshv_irqfd_deassign()
omits it. This races with the EPOLLHUP path in mshv_irqfd_wakeup(),
which does take the lock before calling mshv_irqfd_deactivate().
Additionally, mshv_irqfd_deactivate() uses hlist_del() which poisons
the node pointers rather than resetting them. Since
mshv_irqfd_is_active() relies on hlist_unhashed() (checks pprev ==
NULL), a poisoned node still appears active. If a concurrent path calls
mshv_irqfd_deactivate() again on the same irqfd, the guard fails to
prevent a double hlist_del() on poisoned pointers.
Fix both issues:
- Add the missing spin_lock_irq/spin_unlock_irq around the list
traversal in mshv_irqfd_deassign(), matching mshv_irqfd_release().
- Use hlist_del_init() instead of hlist_del() so the node is properly
marked as unhashed after removal, making the is_active guard reliable.
Fixes:
|
||
|
Stanislav Kinsburskii
|
5cb5c2f4a8 |
mshv: Use kfree_rcu in mshv_portid_free
mshv_portid_free() uses synchronize_rcu() followed by kfree() to reclaim port table entries. This blocks the caller until a full RCU grace period elapses, which is unnecessary since the same module already uses the non-blocking kfree_rcu() pattern in mshv_port_table_fini(). Replace with kfree_rcu() to avoid the blocking wait and keep the reclamation strategy consistent across the file. Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com> Reviewed-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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Eduard Zingerman
|
80f3c3eb43 |
Merge branch 'bpf-preserve-pointer-state-for-commuted-arithmetic'
Yiyang Chen says: ==================== bpf: Preserve pointer state for commuted arithmetic This series fixes pointer-state propagation for commuted scalar += pointer arithmetic in the verifier. Patch 1 simplifies sanitize_err() before the pointer-state change. Patch 2 keeps the full pointer register state when the pointer operand is the source of the add, preserving fields such as the stack frame number and parent id. Patch 3 moves the untrusted PTR_TO_MEM early return after state propagation, so scalar += untrusted_pointer remains usable through the probe-read path. Patch 4 adds verifier selftests for stack frame number preservation, readonly-untrusted memory access, and dynptr data-slice invalidation. Changes in v4: - Target the bpf fixes tree because the affected behavior is present in released kernels. - Add Eduard's sanitize_err() cleanup and revised pointer-state patch, reusing the caller's temporary offset register instead of verifier-env scratch storage. - Correct the stack-frame Fixes tag to the BPF-to-BPF call verification commit identified by Shung-Hsi. - Fix the dynptr test comment style and retain the source-register clear so the test isolates parent-id propagation. - Carry Daniel Wade's Tested-by and Eduard's selftest Acked-by from the v3 thread. - Rebase to bpf base |
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Yiyang Chen
|
21596761ff |
selftests/bpf: Cover commuted pointer state propagation
Add verifier coverage for the three cases affected by preserving the full pointer state across scalar += pointer: stack frame number inheritance, readonly-untrusted memory access, and dynptr data-slice invalidation. Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn> Tested-by: Daniel Wade <danjwade95@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://patch.msgid.link/20260729-c3-035-public-bpf-v4-v4-4-8ee297e2346b@mails.tsinghua.edu.cn Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
||
|
Yiyang Chen
|
cdf19b1b3c |
bpf: Propagate untrusted pointer state in commuted arithmetic
The untrusted PTR_TO_MEM early return skips pointer offset tracking
because accesses go through probe-read handling. Moving it after full
pointer-state propagation ensures scalar += untrusted_pointer leaves the
destination as PTR_TO_MEM instead of an unrelated scalar.
Fixes:
|
||
|
Yiyang Chen
|
a4c6f804b4 |
bpf: Preserve pointer state for commuted arithmetic
When scalar += pointer is handled in adjust_ptr_min_max_vals(), the
destination register inherits the pointer state from the source pointer.
Copying only selected fields is fragile because pointer provenance is
tracked by several bpf_reg_state fields.
Use the caller's temporary offset register to preserve the scalar operand
while replacing the destination with the full pointer state. This preserves
the frame number for PTR_TO_STACK registers and keeps parent identity
fields consistent.
Fixes:
|
||
|
Eduard Zingerman
|
a15970d916 |
bpf: Simplify sanitize_err() signature
The sanitize_err() function is called when: - ptr += scalar - scalar += ptr - scalar += scalar ALU operations are processed. This commit drops offset and pointer registers parameters from its signature to simplify the follow-up changes for 'scalar += ptr' case. regs[src].type is safe to access, as it is not mutated by the callers. Signed-off-by: Yiyang Chen <chenyy23@mails.tsinghua.edu.cn> Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Link: https://patch.msgid.link/20260729-c3-035-public-bpf-v4-v4-1-8ee297e2346b@mails.tsinghua.edu.cn Signed-off-by: Eduard Zingerman <eddyz87@gmail.com> |
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|
Linus Torvalds
|
6269cc6f52 |
spi: Fixes for v7.2
The drip of driver specific fixes, mostly from the device vendors themselves, keeps on coming in. There's more than I'd like right now but equally nothing hugely alarming. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmps47sACgkQJNaLcl1U h9DonAf/S1AkgEGMws3rJCTH+Bcb7ON9Xvsbjv2rU/CI7lINpSJzbUUJ1Z0qk8KX NaK8ByXBDvn06qS/6hirwuNl/lfJ69XNWSlV8MJGWXHfui2sN6ngFJy9jnTIQY72 bq0rTEPapAFg86Loare1i1nHSomLnICoq/KveE08muiPoBtjFKzP7AF7gDmfN0ot g3x39WL6bLY/qrqVw1aT/tqdVl97os/e2EJIx8lxh1M5waN/kpfFoRD/dVbdO6ZU 8iOKPzIeMco0r1JOtGq2q7JCiHN9DP8+Enyf6hkkgBS/HPEHJkO10t9PAY/ArR12 /KNB7i/i/O35ChESDgk70mcuToLbgg== =g0xm -----END PGP SIGNATURE----- Merge tag 'spi-fix-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "The drip of driver specific fixes, mostly from the device vendors themselves, keeps on coming in. There's more than I'd like right now but equally nothing hugely alarming" * tag 'spi-fix-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi-nxp-fspi: propagate clock reconfig failures in nxp_fspi_select_mem() spi: spi-nxp-fspi: enter stop mode before reconfiguring MCR0 and DLL spi: spi-nxp-fspi: add per-SoC SDR/DTR clock rate limits for all supported SoCs spi: spi-qpic-snand: write the feature value before executing SET_FEATURE spi: spi-cadence: Move TX FIFO full busy-wait into FIFO spi: qcom-qspi: Correct max DMA length to avoid 64K boundary failure spi: spacemit: prepare both DMA descriptors before submitting |
||
Lizhi Hou
|
8d51e0fd3e |
accel/amxdna: Fix page-insertion errors in amdxdna_insert_pages()
Two error paths in amdxdna_insert_pages() called vma->vm_ops->close(vma)
before returning an error code to the caller. This is incorrect:
amdxdna_gem_obj_mmap() registers an HMM interval notifier before calling
amdxdna_insert_pages(), and on a hard error it jumps to hmm_unreg to undo
that registration. Calling vm_ops->close() manually — which drops the
shmem pages_pin_count and the GEM object reference that backs the VMA —
before the mmap syscall has even returned causes those resources to be
released while the VMA is still alive. The kernel VMA teardown will call
vm_ops->close() a second time when the process later unmaps the range,
producing a reference count underflow.
Replace both hard-error returns with a deferred-fault approach that keeps
the VMA alive and retries page insertion through the HMM range-fault path.
Fixes:
|
||
Achilles Gaikwad
|
e053b624f5 |
NFSv4.2: fix nfs4_listxattr size accounting
A call to listxattr() with a buffer size of 0 returns the actual
size of the buffer needed for a subsequent call. On an NFSv4.2
mount this triggers the following oops:
[ 399.768687] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 399.768705] RIP: 0010:_copy_from_pages+0x44/0xe0
[ 399.768722] Call Trace:
[ 399.768723] nfs4_xattr_alloc_entry+0x1bf/0x1e0
[ 399.768730] nfs4_xattr_cache_set_list+0x43/0x1f0
[ 399.768731] nfs4_listxattr+0x21f/0x250
[ 399.768733] vfs_listxattr+0x55/0xa0
[ 399.768736] listxattr+0x23/0x160
[ 399.768737] path_listxattrat+0xba/0x1e0
[ 399.768739] do_syscall_64+0xe2/0x680
security_inode_listsecurity() (via the xattr_list_one() helper) now
decrements the remaining size even when the buffer pointer is NULL, so
in the size-query case, 'left' underflows to a huge size_t value. As a
result, nfs4_listxattr_nfs4_user() treats the NULL buffer as a real one,
leading to a NULL pointer dereference in _copy_from_pages().
security_inode_listsecurity() does not return the number of bytes
it added to the list, so the code derived it as
'size - error - left'. That is also wrong in the size-query case:
the generic_listxattr() contribution is only subtracted from 'left'
when a buffer is present. Thus, the query result comes up short by
exactly that contribution (e.g., "system.nfs4_acl" on a mount with
ACL support), and a caller that allocates the returned size gets
-ERANGE on the subsequent call.
Declare 'left' as ssize_t, use a scratch copy to measure security
hook consumption, and only decrement 'left' if a buffer is present.
Fixes:
|
||
|
Linus Torvalds
|
596254ecc5 |
pci-v7.2-fixes-1
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||
|
Linus Torvalds
|
5f5d80d3b7 |
hwmon fixes for v7.2-rc6
- adt7470:
* Fix PWM auto temp state array and bounds check
* Fix divide-by-zero TOCTOU crash in fan speed read
* Use cached PWM frequency value
* Fix swapped PWM3 and PWM4 auto mode masks
* Fix temperature alarm logic in hwmon_temp_read()
* Fix busy-loop and I2C flooding in update thread
* Fix cache updated before hardware write on I2C error
* Fix fans stuck in manual mode on I2C errors
- ina2xx: Fix various overflow issues
- ltc4282: Fix reading the minimum alarm voltage
- lm63: Mask PWM frequency multiplier to supported bits
- lm90: Only report alarms if driver is ready
- nct6775-core:
* Prevent access to unsupported weight registers
* Fix number of temperature registers for NCT6116
- npcm750-pwm-fan: stop fan timer on device detach
- nzxt-smart2: DMA-align output buffer
- pmbus:
* Fix return value from pmbus_update_byte_data()
* Notify on the hwmon device, not the i2c client
- sht3x: Fix unaligned accesses
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Merge tag 'hwmon-for-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Most of the patches are fixes for pre-existing issues reported by
Sashiko. I suspect we'll see a lot of those for a while.
- adt7470:
- Fix PWM auto temp state array and bounds check
- Fix divide-by-zero TOCTOU crash in fan speed read
- Use cached PWM frequency value
- Fix swapped PWM3 and PWM4 auto mode masks
- Fix temperature alarm logic in hwmon_temp_read()
- Fix busy-loop and I2C flooding in update thread
- Fix cache updated before hardware write on I2C error
- Fix fans stuck in manual mode on I2C errors
- ina2xx: Fix various overflow issues
- ltc4282: Fix reading the minimum alarm voltage
- lm63: Mask PWM frequency multiplier to supported bits
- lm90: Only report alarms if driver is ready
- nct6775-core:
- Prevent access to unsupported weight registers
- Fix number of temperature registers for NCT6116
- npcm750-pwm-fan: stop fan timer on device detach
- nzxt-smart2: DMA-align output buffer
- pmbus:
- Fix return value from pmbus_update_byte_data()
- Notify on the hwmon device, not the i2c client
- sht3x: Fix unaligned accesses"
* tag 'hwmon-for-v7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (npcm750-pwm-fan): stop fan timer on device detach
hwmon: (pmbus) Fix return value from pmbus_update_byte_data()
hwmon: (adt7470) Fix PWM auto temp state array and bounds check
hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read
hwmon: (adt7470) Use cached PWM frequency value
hwmon: (adt7470) Fix swapped PWM3 and PWM4 auto mode masks
hwmon: (adt7470) Fix temperature alarm logic in hwmon_temp_read()
hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread
hwmon: (adt7470) Fix cache updated before hardware write on I2C error
hwmon: (adt7470) Fix fans stuck in manual mode on I2C errors
hwmon: (nct6775-core) Prevent access to unsupported weight registers
hwmon: (lm63) Mask PWM frequency multiplier to supported bits
hwmon: (nzxt-smart2) DMA-align output buffer
hwmon: (lm90) Only report alarms if driver is ready
hwmon: (sht3x) Fix unaligned accesses
hwmon: (ltc4282) Fix reading the minimum alarm voltage
hwmon: (ina2xx) Fix various overflow issues
hwmon: (pmbus/core) notify on the hwmon device, not the i2c client
hwmon: (nct6775-core) Fix number of temperature registers for NCT6116
|
||
|
Linus Torvalds
|
c5d3fe9d25 |
sound fixes for 7.2-rc6
A collection of sound fixes for the 7.2-rc6 cycle. Again, it became
far larger than wished; I'll throttle from now on.
There are no major changes, just a normal flow of small fixes.
The majority of them are device-specific quirks and ASoC SDCA/codec
updates, but it includes a few ALSA core fixes as well.
ALSA Core:
- Fix for ALSA sequencer timer division-by-zero
- Fix potential race in ALSA timer core
- Wake up linked drain waiters on PCM stream unlink
- Fix double-free of converter objects on UMP rawmidi error path
USB-audio:
- Fix a few potential out-of-bounds access bugs
- Prevent stack info leak in RME Digiface status
- Fix UAF during UMP endpoint destruction
- Fix UAF at error handling during probe in Line6 6fire driver
- Quirks for C-Media CM6206, Corsair Virtuoso, Razer Barracuda X 2.4,
JKY Technology, and generic USB headphones
HD-audio:
- Quirks for HP Victus 16, HP Dragonfly Folio G3, Lenovo Legion 7, HP
Laptop 14s, Acer Nitro 5, TongFang X6SP45xU, Infinix INBOOK X3, and
HP Pavilion All-in-One
ASoC:
- Comprehensive cleanups and bug fixes for SoundWire/SDCA drivers
- DMI quirks for AMD ACP/YC on Lenovo Legion 7, Acer Aspire, MSI
Crosshair A16, and ASUS ExpertBook
- ACPI match table entry for SOF RT5682 on Intel Nova Lake
- Device-specific mixer / clock, irq fixes for TI TAS2562, TI TAS2781,
Sophgo cv1800b ADC, Maxim MAX98090/98095, FSL ASRC/EASRC and Realtek
RT5640
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Merge tag 'sound-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of sound fixes for the 7.2-rc6 cycle. Again, it became
far larger than wished; I'll throttle from now on.
There are no major changes, just a normal flow of small fixes. The
majority of them are device-specific quirks and ASoC SDCA/codec
updates, but it includes a few ALSA core fixes as well.
ALSA Core:
- Fix for ALSA sequencer timer division-by-zero
- Fix potential race in ALSA timer core
- Wake up linked drain waiters on PCM stream unlink
- Fix double-free of converter objects on UMP rawmidi error path
USB-audio:
- Fix a few potential out-of-bounds access bugs
- Prevent stack info leak in RME Digiface status
- Fix UAF during UMP endpoint destruction
- Fix UAF at error handling during probe in Line6 6fire driver
- Quirks for C-Media CM6206, Corsair Virtuoso, Razer Barracuda X 2.4,
JKY Technology, and generic USB headphones
HD-audio:
- Quirks for HP Victus 16, HP Dragonfly Folio G3, Lenovo Legion 7, HP
Laptop 14s, Acer Nitro 5, TongFang X6SP45xU, Infinix INBOOK X3, and
HP Pavilion All-in-One
ASoC:
- Comprehensive cleanups and bug fixes for SoundWire/SDCA drivers
- DMI quirks for AMD ACP/YC on Lenovo Legion 7, Acer Aspire, MSI
Crosshair A16, and ASUS ExpertBook
- ACPI match table entry for SOF RT5682 on Intel Nova Lake
- Device-specific mixer / clock, irq fixes for TI TAS2562, TI
TAS2781, Sophgo cv1800b ADC, Maxim MAX98090/98095, FSL ASRC/EASRC
and Realtek RT5640"
* tag 'sound-7.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (53 commits)
ASoC: rt722: reset codec to fix abnormal sound
ASoC: dt-bindings: realtek,rt5640: Make interrupts optional
ALSA: hda/realtek: Add mute LED quirk for HP Victus 16-e0xxx (MB 88ED)
ALSA: usb-audio: Add GET_SAMPLE_RATE quirk for C-Media CM6206
ALSA: usb-audio: Clamp frame size in implicit-feedback mode
ALSA: usb-audio: Fix DMA buffer out-of-bounds write when fill_max is set
ALSA: usb-audio: Add quirk for Corsair Virtuoso (later revision)
ALSA: pcm: wake linked drain waiters on unlink
ASoC: amd: acp: Add DMI quirk for Lenovo Legion 7 15ASH11
ASoC: sophgo: return 1 on volume change in cv1800b_adc_volume_set()
ASoC: tas2781: Use correct calibration data for SINEGAIN2 register
ASoC: SDCA: Move kcontrol search out of IRQ
ASoC: SDCA: Switch to fixup_controls callback for IRQ registration
ASoC: Add a component fixup_controls callback
ASoC: SDCA: Populate IRQ data earlier
ASoC: SDCA: Remove devm from primary IRQ cleanup
ASoC: SDCA: Add sdca_irq_cleanup_late()
ASoC: SDCA: Rename sdca_irq_allocate() to include devm
ALSA: hda/realtek: Add quirk for HP Dragonfly Folio G3 2-in-1 (103c:8a05)
ALSA:hda/realtek:ALC269 fixup for Legion 7 15ASH11 Mic Mute LED
...
|
||
|
Linus Torvalds
|
05b165b6c8 |
This pull request contains the following bug fixes for UML:
- UAF in UML's vector networking driver -----BEGIN PGP SIGNATURE----- iQJmBAABCABQFiEEdgfidid8lnn52cLTZvlZhesYu8EFAmpstNAbFIAAAAAABAAO bWFudTIsMi41KzEuMTEsMiwyFhxyaWNoYXJkQHNpZ21hLXN0YXIuYXQACgkQZvlZ hesYu8HLZBAA1/nFbLrAkqHF6TX1r210RrWxHQfzfmE+ER48lYh+fy2Nvq/gcV6G vEGdcAFfhstIvH8uJFoPnEClE7s0DzV/vHEBNsqmqF76HgRR88EFSbkvNGFtR9w6 DwTn3R2grN4cGaEy9phaeMLik3tj2gTfQd9wgTr+hphr6//fBtxhfe6AgIZyHVJu JmJq+JyiAbA3Pr6CKT+pojcRgx8clavputOxT/4ZaVIj2S64Cn/+BtYd4p7jYZjS IWfnYMKDvnjaDt1eAl758Cc3J+fZdHLc6Ai7rTGwSxqWCubQDz/XQ/WyI3CUuAbL cB9BKRJ5GMP13PDsj0qsg2JSDYiRpGtBvOl6WNy4D4G7wipc9GXySw4yUzBM2utL wSaISSlcA0GHHbk3GnIsoJDEd8tgo/2f8uUgx6xFtI5nYIpwwEZ6+f4JoZpNu5C0 dRA9tN6znmpnmGcRaj7Cir81xyqbxER0llyok4e4KgypC1ymWYJwC/+wIrxo+DIC GaBlY/nKjzGPzLeHnmlUvWIwmyNqOy1/HajTSRiWZ+ZTu1zb74CRvUEH3fvKMmOU kZM/KUSHRR9ufqkaiPLxoP08oEDjfg8DqbhjP7HP/KD6YO3mjod6YRgyKtUeBMhj xoBsCVl3earpv/IvWU6yRxIoIGEhl/j15zIHmm6Yjn4e3pvmQnNzVtI= =zErw -----END PGP SIGNATURE----- Merge tag 'uml-for-linus-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux Pull UML fix from Richard Weinberger: - Fix use-after-free in UML's vector networking driver * tag 'uml-for-linus-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: um: vector: fix use-after-free in vector_mmsg_rx() |
||
|
Linus Torvalds
|
7c7ed51082 |
12 hotfixes. 6 are cc:stable. 9 are for MM.
There's a two-patch series from Nico which fixes a couple of PMD level mTHP accounting bugs and a two-patch series from Chris Gellermann which addresses mishandling of getline() in selftests. All the remainder are singletons - please see the changelogs for details. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCamwI1gAKCRDdBJ7gKXxA jlrXAP4z1XsAoqUj+dG9ixjXhCpTPDkbjarsbyeAofFo441jrwEAgs8n7owl0x2Z OsmuzmeTOkB4j7Y0XLi3/8GOcj1+Gg4= =qrVd -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2026-07-30-19-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "12 hotfixes. 6 are cc:stable. 9 are for MM. There's a two-patch series from Nico which fixes a couple of PMD level mTHP accounting bugs and a two-patch series from Chris Gellermann which addresses mishandling of getline() in selftests. All the remainder are singletons - please see the changelogs for details" * tag 'mm-hotfixes-stable-2026-07-30-19-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: selftests/mm: fix potential wild pointer access of getline due to missing init selftests/clone3: fix wild pointer access of getline due to missing init mm/page_reporting: use system_freezable_wq to fix UAF during suspend mm: vmscan: abort proactive reclaim early when freezing for suspend MAINTAINERS: update Nico Pache's email address arm64, mailmap: update email address for Peter Collingbourne MAINTAINERS: update address for Burak Emir mm/huge_memory: unlock i_mmap_rwsem before releasing after-split folios riscv/mm: use physical alignment for vmemmap_start_pfn mm/migrate: exclude hugetlb folios from MTHP_STAT_NR_ANON accounting mm: decrement MTHP_STAT_NR_ANON in free_zone_device_folio() mm: memcg: initialize *locked in memcg1_oom_prepare() stub |
||
Carlos Llamas
|
28254722a4 |
selinux: bpf: check SBLABEL_MNT before isec init
selinux_inode_init_security() marks the isec as initialized before checking if mount labeling is supported (SBLABEL_MNT). This was fine until commit |
||
Peter Ujfalusi
|
17661c67b2 |
ASoC: SOF: ipc4-pcm: Continue the pipeline trigger in case of IPC timeout
Ignore IPC errors for pipeline state change if the firmware state is
crashed or the IPC has timed out.
If the firmware has crashed the kernel still needs to go through the state
changes to reset its internal to be able to correctly work the next time
the DSP is booted up.
The case with IPC timeout is a bit more problematic, but it has been
rootcaused to be the result of system scheduling blockage and the firmware
did actually received and handled the message, but the reply handling got
blocked by issues outside of the SOF stack.
So far the best way to handle this is to continue with setting the state.
Fixes:
|
||
Qu Wenruo
|
0ef349734a |
btrfs: initialize inode mapping flags for cached inodes
[BUG] When running generic/795 with 8K block size, 4K page size, the test always fails, triggering some ASSERT()s related to folio size: 795 (241074): drop_caches: 3 assertion failed: IS_ALIGNED(start, blocksize) && IS_ALIGNED(end + 1, blocksize), in extent_io.c:1404 (blocksize=8192 root=262 ino=258 start=16826368 end=16830463 mapping min order=0) ------------[ cut here ]------------ kernel BUG at extent_io.c:1404! Oops: invalid opcode: 0000 [#1] SMP CPU: 8 UID: 0 PID: 241105 Comm: fsstress Tainted: G OE 7.2.0-rc5-custom+ #442 PREEMPT(full) f4bfb352566f3949f29c233ce6f735050a03b245 Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 02/02/2022 RIP: 0010:assert_folio_range.cold+0x3d/0x3f [btrfs] Call Trace: <TASK> btrfs_read_folio+0x9e/0x170 [btrfs 4cd1dd93b341b8ef766643f9512f4a86259567a3] prepare_one_folio.constprop.0+0x104/0x2a0 [btrfs 4cd1dd93b341b8ef766643f9512f4a86259567a3] btrfs_buffered_write+0x285/0xa50 [btrfs 4cd1dd93b341b8ef766643f9512f4a86259567a3] btrfs_do_write_iter+0x1aa/0x210 [btrfs 4cd1dd93b341b8ef766643f9512f4a86259567a3] iter_file_splice_write+0x31a/0x540 direct_splice_actor+0x53/0x170 splice_direct_to_actor+0xe9/0x240 do_splice_direct+0x76/0xb0 vfs_copy_file_range+0x1fd/0x630 __x64_sys_copy_file_range+0xf9/0x220 do_syscall_64+0xe1/0x790 entry_SYSCALL_64_after_hwframe+0x4b/0x53 </TASK> ---[ end trace 0000000000000000 ]--- The ASSERT() itself is added by a later patch. The crash is triggered with that new debug patch, and without this fix. [CAUSE] In the above case, the start 16826368 is properly 8K aligned, but the end (16830463 + 1) is not 8K aligned. Furthermore the mapping's minimal folio order is 0, not the expected 1 for 8K block size with 4K page size. So this means some inodes do not have btrfs_set_inode_mapping_order() called on it. The missing btrfs_set_inode_mapping_order() call happens for cached inodes, through the following events: - btrfs_create_new_inode() called for inode X Which properly sets minimal folio order for the VFS inode. - btrfs_update_inode() called for inode X Which calls btrfs_delayed_update_inode() to create a delayed_node into root->delayed_nodes xarray. - Drop cache/memory pressure, evicting in-memory inode X Which evicted the inode X, but delayed_node is still in root->delayed_nodes for future reuse. - btrfs_iget() for inode X called again btrfs_iget() |- btrfs_iget_locked() | |- iget5_locked_rcu() | Which creates a new vfs_inode for btrfs, whose mapping still | has the minimal order as 0. | |- btrfs_read_locked_inode() |- btrfs_fill_inode() | |- btrfs_get_delayed_node() | Which found out the previous node, and use that delayed | node to initialize the new inode. | |- filled = true; |- if (filled) goto cache_index; Which skips the btrfs_update_inode_mapping_flags() and btrfs_set_inode_mapping_order() calls. So the inode still has minimal folio order set as 0, not the required 1. Thus later page cache read will get a folio whose size is smaller than block size, as the mapping has its minimal folio order set as 0 not 1, then trigger the ASSERT(). [FIX] Move the btrfs_update_inode_mapping_flags() and btrfs_set_inode_mapping_order() calls under cache_index label, so that the mapping flags and minimal folio order is always set no matter if we have a cached inode. Assisted-by: LLM (analysis) Fixes: |
||
Zhang Heng
|
38417f5fc8 |
ASoC: amd: yc: Add DMI quirk for HP Victus Laptop 16-e1xxx
Add DMI quirk to enable ACP6x sound card for HP Victus by HP Laptop
16-e1xxx, which fixes microphone not working issue.
Without this quirk, the DMIC on acp6x device is not properly enabled,
causing the microphone to not work.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218926
Link:
|
||
|
Qu Wenruo
|
4c375ac546 |
btrfs: disable bs > ps support if no transparent hugepage support
Btrfs relies on mapping_set_folio_order_range() to set the minimal
folio order for all its data inodes, but that function will be no-op if
transparent hugepage is not enabled.
Guard the bs > ps support behind CONFIG_TRANSPARENT_HUGEPAGE, just like
all other filesystems.
Fixes:
|
||
Dmitry Antipov
|
d2a4e4e626 |
btrfs: fix memory leak in btrfs_do_encoded_write()
Local fuzzing of 6.12.94 has found the following memory leak:
Unreferenced object 0xffff888018050a80 (size 64):
comm "syz.0.17", pid 10297, jiffies 4294953601
hex dump (first 32 bytes):
00 10 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................
10 0a 05 18 80 88 ff ff 10 0a 05 18 80 88 ff ff ................
backtrace (crc a8a6fc29):
kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]
slab_post_alloc_hook mm/slub.c:4152 [inline]
slab_alloc_node mm/slub.c:4197 [inline]
__kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358
kmalloc_noprof include/linux/slab.h:878 [inline]
extent_changeset_alloc fs/btrfs/extent_io.h:207 [inline]
qgroup_reserve_data+0x1c5/0x7d0 fs/btrfs/qgroup.c:4305
btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355
btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746
btrfs_encoded_write fs/btrfs/file.c:1482 [inline]
btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507
btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738
btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Unreferenced object 0xffff888018050a00 (size 64):
comm "syz.0.17", pid 10297, jiffies 4294953601
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 ff 0f 00 00 00 00 00 00 ................
90 0a 05 18 80 88 ff ff 90 0a 05 18 80 88 ff ff ................
backtrace (crc cb5c9580):
kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]
slab_post_alloc_hook mm/slub.c:4152 [inline]
slab_alloc_node mm/slub.c:4197 [inline]
__kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358
kmalloc_noprof include/linux/slab.h:878 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
ulist_prealloc+0x9c/0x110 fs/btrfs/ulist.c:114
extent_changeset_prealloc fs/btrfs/extent_io.h:217 [inline]
__set_extent_bit+0x16b/0x1a70 fs/btrfs/extent-io-tree.c:1086
set_record_extent_bits+0x50/0x90 fs/btrfs/extent-io-tree.c:1821
qgroup_reserve_data+0x274/0x7d0 fs/btrfs/qgroup.c:4312
btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355
btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746
btrfs_encoded_write fs/btrfs/file.c:1482 [inline]
btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507
btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738
btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Fix this by freeing an extent changeset before returning from
btrfs_do_encoded_write().
Fixes:
|
||
David Lee
|
0fa78ef637 |
btrfs: lzo: reject inline extents without valid headers
[BUG]
For a crafted btrfs image, the following KASAN can be triggered when
reading an inline lzo compressed file extent:
BUG: KASAN: slab-out-of-bounds in lzo_decompress+0x57d/0x700
Read of size 4 at addr ffff888006f2e644 by task btrfs_lzo_inlin/77
Call Trace:
<TASK>
dump_stack_lvl+0x5b/0x70
print_report+0xd1/0x610
kasan_report+0xe0/0x110
__asan_report_load_n_noabort+0x13/0x20
lzo_decompress+0x57d/0x700
btrfs_decompress+0x140/0x1c0
uncompress_inline+0x147/0x1b0
btrfs_get_extent+0xb23/0x10a0
btrfs_do_readpage.constprop.0+0x538/0x1ac0
btrfs_readahead+0x32f/0x5f0
read_pages+0x16f/0x850
page_cache_ra_unbounded+0x296/0x490
do_page_cache_ra+0xd9/0x130
page_cache_sync_ra+0x3ee/0x6f0
filemap_get_pages+0x306/0x15c0
filemap_read+0x329/0xd00
btrfs_file_read_iter+0x1f8/0x2b0
vfs_read+0x4ef/0x720
ksys_read+0xf8/0x1d0
__x64_sys_read+0x71/0xb0
x64_sys_call+0x1ab0/0x1b70
do_syscall_64+0x61/0x470
entry_SYSCALL_64_after_hwframe+0x4b/0x53
</TASK>
[CAUSE]
For an inline lzo compressed file extent, there should always be one lzo
header, recording the total length of the compressed data, followed by
one segment header, recording the compressed lzo payload.
But if a crafted inline lzo compressed file extent contains only an lzo
header, without the segment header or payload, lzo_decompress() will
still try to read the segment header, causing a read beyond the item
boundary.
Furthermore if the inline lzo compressed file extent is the first item
of the leaf, it will be at the extent buffer boundary. The above
out-of-boundary read will go beyond the extent buffer boundary,
triggering the above KASAN report.
[FIX]
Validate the total length of the inlined lzo compressed file extent, to
make sure there is at least one LZO header and one segment header, and a
non-zero payload.
Fixes:
|
||
|
Qu Wenruo
|
7f03a417fc |
btrfs: disable large folios for systems with highmem
[BUG]
There is a bug report that on 32bit systems (i686), btrfs crashes when
trying to do zstd compression:
BUG: unable to handle page fault for address: fffbc000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
CPU: 0 UID: 0 PID: 61 Comm: kworker/u8:5 Tainted: G N 7.2.0-rc3-P3 #2 PREEMPTLAZY
Hardware name: LENOVO 2007F2G/2007F2G, BIOS 79ETE7WW (2.27 ) 03/21/2011
Workqueue: btrfs-delalloc btrfs_work_helper
EIP: ZSTD_compressStream2+0x221/0x5fc
Call Trace:
ZSTD_compressStream+0xd/0x48
zstd_compress_stream+0x8/0x10
zstd_compress_bio+0x20a/0x564
btrfs_compress_bio+0x94/0xc0
compress_file_range+0x20a/0x380
btrfs_work_helper+0xc1/0x1b4
process_scheduled_works+0x15f/0x204
worker_thread+0x10c/0x178
kthread+0xe1/0xe8
ret_from_fork+0x1d/0x14c
ret_from_fork_asm+0x12/0x18
entry_INT80_32+0xf0/0xf0
CR2: 00000000fffbc000
---[ end trace 0000000000000000 ]---
[CAUSE]
Inside zstd_compress_bio(), we assume the whole page cache folio can be
mapped in one go.
However that assumption is not true on systems with CONFIG_HIGHMEM, the
pages of the large folio can be in HIGHMEM, which needs to be mapped
before access.
Meanwhile zstd_compress_bio() only map the page of a large folio where
the start filepos is, the remaining pages are not mapped, and accessing
the remaining pages will trigger the above crash.
[FIX]
Do not enable large folios when the kernel has CONFIG_HIGHMEM enabled.
This is the same handling for bs > ps support.
Link: https://github.com/kdave/btrfs-progs/issues/1146
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Fixes:
|
||
Rafael J. Wysocki
|
f93d951ce0 |
Revert "thermal: hwmon: Register a hwmon device for each thermal zone"
Revert commit
|
||
|
Rafael J. Wysocki
|
c89039b724 |
Revert "thermal: hwmon: Use extra_groups for adding temperature attributes"
Revert commit
|
||
Stefan Haberland
|
7f40b34646 |
s390/dasd: Fix undersized format-check buffer
fmt_buffer_size in dasd_eckd_check_device_format() is declared as
int, even though one of the multiplicands, sizeof(struct eckd_count),
is a size_t. The expression
trkcount * rpt_max * sizeof(struct eckd_count)
is therefore correctly evaluated at 64-bit width, but the result is
silently truncated when it is stored back into the 32-bit
fmt_buffer_size variable. For a sufficiently large track range
(start_unit/stop_unit are caller-controlled) this truncation
yields a buffer size far smaller than the number of tracks actually
requested. kzalloc() then succeeds with an undersized allocation,
while the subsequent channel program build still operates on the
untruncated track count and writes past the end of that buffer.
Compute the buffer size with check_mul_overflow() and keep it in a
size_t, so that a value that no longer fits results in -EINVAL
instead of a silently truncated allocation size.
Fixes:
|
||
Jan Höppner
|
9973026f57 |
s390/dasd: Fix potential NULL pointer dereference
dasd_release_space() checks the implementation of the is_ese()
discipline function before calling it to determine if a given device is
an ESE DASD.
The current usage of the logical AND operator will lead to a NULL
pointer dereference as the function is called even if the function
pointer is NULL.
Fix this by using the logical OR operator.
Fixes:
|
||
|
Stefan Haberland
|
dcba277d11 |
s390/dasd: Fix path verification interrupted by concurrent dasd_sleep_on_immediatly
When all channel paths to a DASD device are lost and subsequently recovered, the path event handler starts one IO per path via dasd_sleep_on_immediatly() to execute read configuration data (RCD) with high priority. dasd_sleep_on_immediatly() works by terminating the currently running request before inserting the new request. If a concurrent caller, such as the attention handler dasd_eckd_check_attention_work() or the summary unit check handler summary_unit_check_handling_work(), also calls dasd_sleep_on_immediatly() while a path verification RCD is in progress, the RCD gets terminated. The problem is that a terminated request transitions from CLEARED to TERMINATED without going through the normal retry path in __dasd_device_process_ccw_queue. The RCD therefore returns -EIO, and the affected paths remain non-operational after recovery. RCD CQRs used for path verification already carry the DASD_CQR_VERIFY_PATH flag. Extend _dasd_term_running_cqr() to check this flag: instead of terminating such a request, return -EAGAIN. In dasd_sleep_on_immediatly(), loop on -EAGAIN with a short sleep, waiting for the path verification request to complete before inserting the new request. This is consistent with the already indefinite wait_event() that dasd_sleep_on_immediatly() uses for its own request, and all other callers (attention handler, summary unit check handler, reserve/release/steal-lock) benefit automatically without requiring changes. Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://patch.msgid.link/20260727142840.567286-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |