Commit Graph

1444021 Commits

Author SHA1 Message Date
Linus Torvalds
87d03777eb Handle 64bits inode numbers.
Tetsuo Handa (1):
   tomoyo: use u64 for holding inode->i_ino value
 
  security/tomoyo/audit.c     |   10 ++++------
  security/tomoyo/common.h    |    2 +-
  security/tomoyo/condition.c |    6 +++---
  3 files changed, 8 insertions(+), 10 deletions(-)
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Merge tag 'tomoyo-pr-20260422' of git://git.code.sf.net/p/tomoyo/tomoyo

Pull tomoyo update from Tetsuo Handa:
 "Handle 64-bit inode numbers"

* tag 'tomoyo-pr-20260422' of git://git.code.sf.net/p/tomoyo/tomoyo:
  tomoyo: use u64 for holding inode->i_ino value
2026-04-22 14:22:26 -07:00
Mark Brown
24fcdc81dd
ASoC: dt-bindings: ti,tas2781: Add TAS5832 support
Baojun Xu <baojun.xu@ti.com> says:

Link: https://patch.msgid.link/20260414015441.2439-1-baojun.xu@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 21:15:55 +01:00
Baojun Xu
1f95fdef68
ASoC: tas2781: Add tas5832 support
TAS5832 is in same family with TAS5827/28/30.

Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Link: https://patch.msgid.link/20260414015441.2439-2-baojun.xu@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 21:15:51 +01:00
Baojun Xu
6d619f7397
ASoC: dt-bindings: ti,tas2781: Add TAS5832 support
TAS5832 is in same family with TAS5827/28/30.

Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260414015441.2439-1-baojun.xu@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 21:15:50 +01:00
Linus Torvalds
2a4c0c11c0 s390 updates for 7.1 merge window
- Add support for CONFIG_PAGE_TABLE_CHECK and enable it in
   debug_defconfig. s390 can only tell user from kernel PTEs via the mm,
   so mm_struct is now passed into pxx_user_accessible_page() callbacks
 
 - Expose the PCI function UID as an arch-specific slot attribute in
   sysfs so a function can be identified by its user-defined id while
   still in standby. Introduces a generic ARCH_PCI_SLOT_GROUPS hook in
   drivers/pci/slot.c
 
 - Refresh s390 PCI documentation to reflect current behavior and cover
   previously undocumented sysfs attributes
 
 - zcrypt device driver cleanup series: consistent field types, clearer
   variable naming, a kernel-doc warning fix, and a comment explaining
   the intentional synchronize_rcu() in pkey_handler_register()
 
 - Provide an s390 arch_raw_cpu_ptr() that avoids the detour via
   get_lowcore() using alternatives, shrinking defconfig by ~27 kB
 
 - Guard identity-base randomization with kaslr_enabled() so nokaslr
   keeps the identity mapping at 0 even with
   CONFIG_RANDOMIZE_IDENTITY_BASE=y
 
 - Build S390_MODULES_SANITY_TEST as a module only by requiring
   KUNIT && m, since built-in would not exercise module loading
 
 - Remove the permanently commented-out HMCDRV_DEV_CLASS create_class()
   code in the hmcdrv driver
 
 - Drop stale ident_map_size extern conflicting with asm/page.h
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Merge tag 's390-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Add support for CONFIG_PAGE_TABLE_CHECK and enable it in
   debug_defconfig. s390 can only tell user from kernel PTEs via the mm,
   so mm_struct is now passed into pxx_user_accessible_page() callbacks

 - Expose the PCI function UID as an arch-specific slot attribute in
   sysfs so a function can be identified by its user-defined id while
   still in standby. Introduces a generic ARCH_PCI_SLOT_GROUPS hook in
   drivers/pci/slot.c

 - Refresh s390 PCI documentation to reflect current behavior and cover
   previously undocumented sysfs attributes

 - zcrypt device driver cleanup series: consistent field types, clearer
   variable naming, a kernel-doc warning fix, and a comment explaining
   the intentional synchronize_rcu() in pkey_handler_register()

 - Provide an s390 arch_raw_cpu_ptr() that avoids the detour via
   get_lowcore() using alternatives, shrinking defconfig by ~27 kB

 - Guard identity-base randomization with kaslr_enabled() so nokaslr
   keeps the identity mapping at 0 even with RANDOMIZE_IDENTITY_BASE=y

 - Build S390_MODULES_SANITY_TEST as a module only by requiring KUNIT &&
   m, since built-in would not exercise module loading

 - Remove the permanently commented-out HMCDRV_DEV_CLASS create_class()
   code in the hmcdrv driver

 - Drop stale ident_map_size extern conflicting with asm/page.h

* tag 's390-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/zcrypt: Fix warning about wrong kernel doc comment
  PCI: s390: Expose the UID as an arch specific PCI slot attribute
  docs: s390/pci: Improve and update PCI documentation
  s390/pkey: Add comment about synchronize_rcu() to pkey base
  s390/hmcdrv: Remove commented out code
  s390/zcrypt: Slight rework on the agent_id field
  s390/zcrypt: Explicitly use a card variable in _zcrypt_send_cprb
  s390/zcrypt: Rework MKVP fields and handling
  s390/zcrypt: Make apfs a real unsigned int field
  s390/zcrypt: Rework domain processing within zcrypt device driver
  s390/zcrypt: Move inline function rng_type6cprb_msgx from header to code
  s390/percpu: Provide arch_raw_cpu_ptr()
  s390: Enable page table check for debug_defconfig
  s390/pgtable: Add s390 support for page table check
  s390/pgtable: Use set_pmd_bit() to invalidate PMD entry
  mm/page_table_check: Pass mm_struct to pxx_user_accessible_page()
  s390/boot: Respect kaslr_enabled() for identity randomization
  s390/Kconfig: Make modules sanity test a module-only option
  s390/setup: Drop stale ident_map_size declaration
2026-04-22 11:13:45 -07:00
Thorsten Blum
497ad4be35 apparmor: Use sysfs_emit in param_get_{audit,mode}
Replace sprintf() with sysfs_emit() in param_get_audit() and
param_get_mode(). sysfs_emit() is preferred for formatting sysfs output
because it provides safer bounds checking.  Add terminating newlines as
suggested by checkpatch.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-04-22 10:57:52 -07:00
Thorsten Blum
e6a522c5b4 apparmor: Remove redundant if check in sk_peer_get_label
Remove the redundant if check in sk_peer_get_label() and return
ERR_PTR(-ENOPROTOOPT) directly.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-04-22 10:57:52 -07:00
Thorsten Blum
46401cc99c apparmor: Replace memcpy + NUL termination with kmemdup_nul in do_setattr
Use kmemdup_nul() to copy 'value' instead of using memcpy() followed by
a manual NUL termination.  No functional changes.

Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-04-22 10:57:52 -07:00
Linus Torvalds
8fd12b03c7 hyperv-next for v7.1
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Merge tag 'hyperv-next-signed-20260421' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V updates from Wei Liu:

 - Fix cross-compilation for hv tools (Aditya Garg)

 - Fix vmemmap_shift exceeding MAX_FOLIO_ORDER in mshv_vtl (Naman Jain)

 - Limit channel interrupt scan to relid high water mark (Michael
   Kelley)

 - Export hv_vmbus_exists() and use it in pci-hyperv (Dexuan Cui)

 - Fix cleanup and shutdown issues for MSHV (Jork Loeser)

 - Introduce more tracing support for MSHV (Stanislav Kinsburskii)

* tag 'hyperv-next-signed-20260421' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  x86/hyperv: Skip LP/VP creation on kexec
  x86/hyperv: move stimer cleanup to hv_machine_shutdown()
  Drivers: hv: vmbus: fix hyperv_cpuhp_online variable shadowing
  mshv: Add tracepoint for GPA intercept handling
  mshv_vtl: Fix vmemmap_shift exceeding MAX_FOLIO_ORDER
  tools: hv: Fix cross-compilation
  Drivers: hv: vmbus: Export hv_vmbus_exists() and use it in pci-hyperv
  mshv: Introduce tracing support
  Drivers: hv: vmbus: Limit channel interrupt scan to relid high water mark
2026-04-22 09:50:46 -07:00
Cássio Gabriel
a9224f26b7 ALSA: usb-audio: Fix Audio Advantage Micro II SPDIF switch
snd_microii_spdif_switch_put() returns 0 when the requested
vendor register value differs from the cached one.

This comparison was inverted by the resume-support conversion,
so real SPDIF switch toggles are ignored while no-op writes still
issue SET_CUR and report success.

Return early only when the requested value matches the cached one.

Fixes: 288673beae ("ALSA: usb-audio: Add resume support for MicroII SPDIF ctls")
Cc: stable@vger.kernel.org
Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
Link: https://patch.msgid.link/20260421-microii-spdif-switch-fix-v1-1-5c50dc28b88f@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-04-22 17:52:08 +02:00
Cássio Gabriel
fca9c85004 ALSA: usb-audio: Avoid false E-MU sample-rate notifications
snd_emuusb_set_samplerate() unconditionally notifies the E-MU
SampleRate Extension Unit control after issuing SET_CUR.

If snd_usb_mixer_set_ctl_value() fails, the control value has not
changed, yet snd_usb_mixer_notify_id() still invalidates the cache and
emits a value-change event to userspace.

Notify the control only after a successful write.

Fixes: 7d2b451e65 ("ALSA: usb-audio - Added functionality for E-mu 0404USB/0202USB/TrackerPre")
Cc: stable@vger.kernel.org
Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
Link: https://patch.msgid.link/20260421-alsa-emuusb-samplerate-notify-v1-1-8b63bbc1d7f1@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-04-22 17:51:42 +02:00
Len Brown
b488997b9c tools/power turbostat: v2026.04.21
Since v2026.02.14

Display HT siblings in cpu# order.
Add Module-ID column.
Print Core-ID and APIC-ID in hex.
Fix misc bugs.

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Len Brown
58839fdbd4 tools/power turbostat: Process HT siblings in CPU order
On large systems with HT sibling cpu#'s more than 32 apart,
HT siblings were processed and displayed in reverse order.

This was due to how set_thread_siblings() parsed the
sibling-bit-mask.

Update set_thread_siblings to instead parse the sibling-list,
like other cpu lists, and to thus order HT siblings
by ascending CPU number, no matter the size of the system.

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Len Brown
aea40f1e2d tools/power turbostat: Show module_id column
Get the "module_id" from the Linux topology "cluster_id".
If the there is more than one id, show it by default.

Module joins Die etc. in the "topology" group.

Display in hex, as it is usually based mask of the APIC-id

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Len Brown
da828b6caf tools/power turbostat: Print core_id and apic_id in hex
The core_id is based on a mask of the apic_id.
Print them both in hex, rather than decimal,
to make this relationship visibly clear.

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Artem Bityutskiy
092b76a325 tools/power turbostat: Cleanup print helper functions
Make printer helper functions more readable by factoring
out a local 'sep' variable.

Remove the redundant parentheses around sprintf() calls.

Remove an unnecessary cast to "unsigned int" by using the '%08llx' instead
   of '%08x'.

No functional changes.

[lenb: fix typos, simplify]
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Len Brown
08e11edd0e tools/power turbostat: Fix --cpu-set 1 regression on HT systems
When the "--cpu-set" option limits turbostat to run on
a higher numbered HT sibling, it exits upon dividing by zero.

This is because the HT support handles higher numbered siblings
at the same time as lower numbered siblings.  But when that lower
number sibling is dis-allowed, the higher numbered sibling is
never processed.  The result is a time delta of 0, which results
in a divide by 0 for any of the "per-second" metrics.

Enhance the HT enumeration code to record all siblings (up to SMT4).
Consult this complete HT sibling list to determine when
to process an HT sibling, and when to skip it.

Fixes: a2b4d0f8bf ("tools/power turbostat: Favor cpu# over core#")
Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:31:57 -04:00
Len Brown
2c52f942fc tools/power turbostat: Fix --cpu-set 0 regression on HT systems
"turbostat --cpu-set 0" appears to hang if cpu0 has an HT sibling.

This is because the initialization code recognizes that it does not
have to open perf files for the HT sibling, but the HT support
in the collection code sees the HT sibling and tries to read
from an uninitialized file descriptor, 0 (standard input).

Access HT siblings only when they are in the allowed set.

Fixes: a2b4d0f8bf ("tools/power turbostat: Favor cpu# over core#")
Signed-off-by: Len Brown <len.brown@intel.com>
Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2026-04-22 11:31:57 -04:00
David Arcari
ce012c966b tools/power turbostat: Fix unrecognized option '-P'
The '-P' short option (shorthand for --no-perf) is not present in the
optstring of the second call to getopt_long_only(). This results in
the "unrecognized option" error when the tool reaches the main parsing
loop.

Add 'P' to the second getopt_long_only() call to ensure it is
consistently recognized.

Fixes: a0e86c90b8 ("tools/power turbostat: Add --no-perf option")
Signed-off-by: David Arcari <darcari@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-22 11:26:33 -04:00
Paolo Bonzini
5335e318ad tracing: Make undefsyms_base.c a first-class citizen
Linus points out that dumping undefsyms_base.c form the Makefile
is rather ugly, and that a much better course of action would be
to have this file as a first-class citizen in the git tree.

This allows some extra cleanup in the Makefile, and the removal of
the .gitignore file in kernel/trace.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/CAHk-=wieqGd_XKpu8UxDoyADZx8TDe8CF3RmkUXt5N_9t5Pf_w@mail.gmail.com
Link: https://lore.kernel.org/all/20260421095446.2951646-1-maz@kernel.org/
Link: https://patch.msgid.link/20260421100455.324333-1-pbonzini@redhat.com
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-04-22 11:24:41 -04:00
Hardik Phalet
448aaf54d3 fbdev: hgafb: Request memory region before ioremap
The driver calls ioremap() on the HGA video memory at 0xb0000 without
first reserving the physical address range. This leaves the kernel
resource tree incomplete and can cause silent conflicts with other
drivers claiming the same range.

Add a devm_request_mem_region() call before ioremap() in
hga_card_detect() to reserve the memory region.

Signed-off-by: Hardik Phalet <hardik.phalet@pm.me>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 17:02:55 +02:00
Maciej Strozek
87a3f5c8ac
ASoC: sdw_utils: cs42l43: allow spk component names to be combined
Move handling of cs42l43-spk component string into SOF mechanism [1]
which will allow it to be aggregated with other speakers.
Likewise handle the cs35l56-bridge special case which should not be
combined to keep compatibility with UCM.

Link: https://github.com/thesofproject/linux/pull/5445 [1]
Link: https://github.com/alsa-project/alsa-ucm-conf/pull/747
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Suggested-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Link: https://patch.msgid.link/20260420114823.194226-1-mstrozek@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 16:00:10 +01:00
Eric Biggers
a83307f34e smb: client: Drop 'allocate_crypto' arg from smb*_calc_signature()
Since the crypto library API is now being used instead of crypto_shash,
all structs for MAC computation are now just fixed-size structs
allocated on the stack; no dynamic allocations are ever required.
Besides being much more efficient, this also means that the
'allocate_crypto' argument to smb2_calc_signature() and
smb3_calc_signature() is no longer used.  Remove this unused argument.

Acked-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:56:16 -05:00
Eric Biggers
dd1c537bec smb: client: Make generate_key() return void
Since the crypto library API is now being used instead of crypto_shash,
generate_key() can no longer fail.  Make it return void and simplify the
callers accordingly.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:56:12 -05:00
Eric Biggers
4c1c07820a smb: client: Remove obsolete cmac(aes) allocation
Since the crypto library API is now being used instead of crypto_shash,
the "cmac(aes)" crypto_shash that is being allocated and stored in
'struct cifs_secmech' is no longer used.  Remove it.

That makes the kconfig selection of CRYPTO_CMAC and the module softdep
on "cmac" unnecessary.  So remove those too.

Finally, since this removes the last use of crypto_shash from the smb
client, also remove the remaining crypto_shash-related helper functions.

Note: cifs_unicode.c was relying on <linux/unaligned.h> being included
transitively via <crypto/internal/hash.h>.  Since the latter include is
removed, make cifs_unicode.c include <linux/unaligned.h> explicitly.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:56:10 -05:00
Eric Biggers
3a4580e713 smb: client: Use AES-CMAC library for SMB3 signature calculation
Convert smb3_calc_signature() to use the AES-CMAC library instead of a
"cmac(aes)" crypto_shash.

The result is simpler and faster code.  With the library there's no need
to allocate memory, no need to handle errors except for key preparation,
and the AES-CMAC code is accessed directly without inefficient indirect
calls and other unnecessary API overhead.

For now a "cmac(aes)" crypto_shash is still being allocated in
'struct cifs_secmech'.  Later commits will remove that, simplifying the
code even further.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:56:07 -05:00
Enzo Matsumiya
44ccf4162a smb: common: add SMB3_COMPRESS_MAX_ALGS
Set it to number of currently defined algorithms (6 as of now).

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:56 -05:00
Enzo Matsumiya
71179a5ee9 smb: client: compress: add code docs to lz77.c
Document parts of the code, especially the apparently
non-sense parts.

Other:
- change pointer increment constants to sizeof() values

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:52 -05:00
Enzo Matsumiya
4460e9c68d smb: client: compress: LZ77 optimizations
This patch implements several micro-optimizations on lz77_compress()
with the goal of reducing the number of instructions per [input]
byte (a.k.a. IPB).

Changes:
- change hashtable to be u32 (instead of u64) -- change the hash
  function to reflect that (adds lz77_hash() and lz77_read32() helpers)
- batch-write literals instead of 1 by 1 -- now that we have a well
  defined hot path (match finding) and a cold path (encode literals +
  match), batch writing makes a significant difference
- implement adaptive skipping of input bytes -- skip input bytes more
  aggressively if too few matches are being found
- name some constants for more meaningful context

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:43 -05:00
Enzo Matsumiya
fca46b0e68 smb: client: compress: increase LZ77_MATCH_MAX_DIST
Increase max distance (i.e. window size) from 1k to 8k.
This allows better compression and is just as fast.

Other:
- drop LZ77_MATCH_MIN_DIST as it's nused -- main loop
  already checks if dist > 0

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:38 -05:00
Enzo Matsumiya
20d4f9efe0 smb: client: compress: fix counting in LZ77 match finding
- lz77_match_len() increments @cur before checking for equality,
  leading to off-by-one match len in some cases.

  Fix by moving pointers increment to inside the loop.
  Also rename @wnd arg to @match (more accurate name).
- both lz77_match_len() and lz77_compress() checked for
  "buf + step < end" when the correct is "<=" for such cases.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:34 -05:00
Enzo Matsumiya
4c221711b2 smb: client: compress: fix buffer overrun in lz77_compress()
@dst buffer is allocated with same size as @src, which, for good
compression cases, works fine.

However, when compression goes bad (e.g. random bytes payloads), the
compressed size can increase significantly, and even by stopping the
main loop at 7/8 of @slen, writing leftover literals could write past
the end of @dst because of LZ77 metadata.

To fix this, add lz77_compressed_alloc_size() helper to compute the
correct allocation size for @dst, accounting for metadata and worst
cast scenario (all literals).

While this is overprovisioning memory, it's not only correct, but also
allows lz77_compress() main loop to run without ever checking @dst
limits (i.e. a perf improvement).

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:55:26 -05:00
Michael Bommarito
a55a60886e smb: client: scope end_of_dacl to CIFS_DEBUG2 use in parse_dacl
After validate_dacl() was factored out in commit 149822e5541c, the
local end_of_dacl in parse_dacl() is only read by the dump_ace()
call under #ifdef CONFIG_CIFS_DEBUG2.  With CIFS_DEBUG2 off the
variable is assigned but never used, which gcc -W=1 flags as
-Wunused-but-set-variable.

Remove the local and compute the end-of-dacl pointer inline at the
single call site inside the existing CIFS_DEBUG2 guard.  No
functional change: when CIFS_DEBUG2 is enabled the argument value
is identical to what the removed local carried; when CIFS_DEBUG2
is disabled the code was already dead.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604220046.tGkRxVtS-lkp@intel.com/
Fixes: 149822e5541c ("smb: client: validate the whole DACL before rewriting it in cifsacl")
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:54:26 -05:00
Enzo Matsumiya
17d912d54f smb: client: fix (remove) drop_dir_cache module parameter
Being a module parameter, it's possible to do:

  # modprobe cifs drop_dir_cache=1

Which will lead to a crash, because cifs_tcp_ses_list hasn't been
initialized yet:

  [  168.242624] BUG: kernel NULL pointer dereference, address: 0000000000000010
  [  168.242952] #PF: supervisor read access in kernel mode
  [  168.243175] #PF: error_code(0x0000) - not-present page
  [  168.243394] PGD 0 P4D 0
  [  168.243524] Oops: Oops: 0000 [#1] SMP NOPTI
  [  168.243703] CPU: 2 UID: 0 PID: 1105 Comm: modprobe Not tainted 7.0.0-lku #5 PREEMPT(lazy)
  [  168.244054] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.17.0-2-g4f253b9b-prebuilt.qemu.org 04/01/2014
  [  168.244557] RIP: 0010:cifs_param_set_drop_dir_cache+0x7c/0x100 [cifs]
  ...
  [  168.248785] Call Trace:
  [  168.248915]  <TASK>
  [  168.249023]  parse_args+0x285/0x3a0
  [  168.249204]  ? __pfx_unknown_module_param_cb+0x10/0x10
  [  168.249448]  load_module+0x192b/0x1bb0
  [  168.249637]  ? __pfx_unknown_module_param_cb+0x10/0x10
  [  168.249882]  ? kernel_read_file+0x27d/0x2b0
  [  168.250088]  init_module_from_file+0xce/0xf0
  [  168.250291]  idempotent_init_module+0xfb/0x2f0
  [  168.250496]  __x64_sys_finit_module+0x5a/0xa0
  [  168.250694]  do_syscall_64+0xe0/0x5a0
  [  168.250863]  ? exc_page_fault+0x65/0x160
  [  168.251050]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
  [  168.251284] RIP: 0033:0x7fcaa12b774d

Instead of fixing this with some kind of "is module initialized"
approach, this patch instead moves that functionality to procfs,
setting a write op for the existing open_dirs entry, where
writing a 0 to it will drop the cached directory entries.

Also make it available only when CONFIG_CIFS_DEBUG=y.

A small change needed now is to not call flush_delayed_work()
on invalidate_all_cached_dirs() when called from procfs (can't sleep in
that context).
So add a @sync arg to invalidate_all_cached_dirs() to control when to
flush the delayed works.

Fixes: dde6667fa3 ("smb: client: add drop_dir_cache module parameter to invalidate cached dirents")
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:54:21 -05:00
Michael Bommarito
2757ad3e4b smb: client: require a full NFS mode SID before reading mode bits
parse_dacl() treats an ACE SID matching sid_unix_NFS_mode as an NFS
mode SID and reads sid.sub_auth[2] to recover the mode bits.

That assumes the ACE carries three subauthorities, but compare_sids()
only compares min(a, b) subauthorities.  A malicious server can return
an ACE with num_subauth = 2 and sub_auth[] = {88, 3}, which still
matches sid_unix_NFS_mode and then drives the sub_auth[2] read four
bytes past the end of the ACE.

Require num_subauth >= 3 before treating the ACE as an NFS mode SID.
This keeps the fix local to the special-SID mode path without changing
compare_sids() semantics for the rest of cifsacl.

Fixes: e2f8fbfb8d ("cifs: get mode bits from special sid on stat")
Cc: stable@vger.kernel.org
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:54:15 -05:00
Michael Bommarito
0a8cf16556 smb: client: validate the whole DACL before rewriting it in cifsacl
build_sec_desc() and id_mode_to_cifs_acl() derive a DACL pointer from a
server-supplied dacloffset and then use the incoming ACL to rebuild the
chmod/chown security descriptor.

The original fix only checked that the struct smb_acl header fits before
reading dacl_ptr->size or dacl_ptr->num_aces.  That avoids the immediate
header-field OOB read, but the rewrite helpers still walk ACEs based on
pdacl->num_aces with no structural validation of the incoming DACL body.

A malicious server can return a truncated DACL that still contains a
header, claims one or more ACEs, and then drive
replace_sids_and_copy_aces() or set_chmod_dacl() past the validated
extent while they compare or copy attacker-controlled ACEs.

Factor the DACL structural checks into validate_dacl(), extend them to
validate each ACE against the DACL bounds, and use the shared validator
before the chmod/chown rebuild paths.  parse_dacl() reuses the same
validator so the read-side parser and write-side rewrite paths agree on
what constitutes a well-formed incoming DACL.

Fixes: bc3e9dd9d1 ("cifs: Change SIDs in ACEs while transferring file ownership.")
Cc: stable@vger.kernel.org
Assisted-by: Claude:claude-opus-4-6
Assisted-by: Codex:gpt-5-4
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:54:07 -05:00
Michael Bommarito
a58c5af19f smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path
smb2_ioctl_query_info() has two response-copy branches: PASSTHRU_FSCTL
and the default QUERY_INFO path.  The QUERY_INFO branch clamps
qi.input_buffer_length to the server-reported OutputBufferLength and then
copies qi.input_buffer_length bytes from qi_rsp->Buffer to userspace, but
it never verifies that the flexible-array payload actually fits within
rsp_iov[1].iov_len.

A malicious server can return OutputBufferLength larger than the actual
QUERY_INFO response, causing copy_to_user() to walk past the response
buffer and expose adjacent kernel heap to userspace.

Guard the QUERY_INFO copy with a bounds check on the actual Buffer
payload.  Use struct_size(qi_rsp, Buffer, qi.input_buffer_length)
rather than an open-coded addition so the guard cannot overflow on
32-bit builds.

Fixes: f5778c3987 ("SMB3: Allow SMB3 FSCTL queries to be sent to server from tools")
Cc: stable@vger.kernel.org
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
Assisted-by: Claude:claude-opus-4-6
Assisted-by: Codex:gpt-5-4
Signed-off-by: Steve French <stfrench@microsoft.com>
2026-04-22 09:54:02 -05:00
Amit Barzilai
a40c0e8159 fbdev: clps711x-fb: Request memory region for MMIO
Use devm_platform_get_and_ioremap_resource() for resource 0 (the MMIO
control register range) instead of open-coding platform_get_resource()
and devm_ioremap() separately. The helper requests the memory region
before mapping it, which registers the range in /proc/iomem and prevents
another driver from mapping the same registers.

This makes resource 0 consistent with resource 1 (the framebuffer),
which already uses devm_platform_get_and_ioremap_resource().

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Amit Barzilai <amit.barzilai22@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 16:46:40 +02:00
Amit Barzilai
d2386d9e3e fbdev: cobalt_lcdfb: Request memory region
Use devm_platform_get_and_ioremap_resource() instead of open-coding
platform_get_resource() and devm_ioremap() separately. The helper
requests the memory region before mapping it, which registers the range
in /proc/iomem and prevents another driver from mapping the same
registers.

Assisted-by: Claude:claude-sonnet-4-6
Signed-off-by: Amit Barzilai <amit.barzilai22@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 16:46:40 +02:00
Tobias Heider
0a5ee0e520
ASoC: qcom: x1e80100: limit speaker volumes
Limit the digital gain and PA volumes to a combined -3 dB in the machine
driver to reduce the risk of speaker damage until we have active speaker
protection in place (or higher safe levels have been established).

Based on commit c481016bb4 ("ASoC: qcom: sc8280xp: limit speaker
volumes") which addressed the same issue on the sc8280x SoC with some
minor changes as explained below.

The Digital Volume behaves almost identical to sc8280x since both use
the same lpass-wsa-macro, but x1e80100 has two sets of controls prefixed
with WSA and WSA2.
For PA x1e80100 machines use wsa884x amplifiers which expose a linear
scale from -9 dB to 9 dB with a 1.5 dB step size giving us
0 dB = -9 dB + 6 * 1.5 dB.

On x1e80100 there are two different speaker topologies we need to handle:
  2-Speakers: SpkrLeft, Spkr Right
  4-Speakers: WooferLeft, WooferRight, TweeterLeft, TweeterRight

Signed-off-by: Tobias Heider <tobias.heider@canonical.com>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260422-x1e80100-audio-limit-v2-1-333258b97697@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:44:05 +01:00
Mark Brown
16ab65df5d
spi: fix resource leaks on device setup failure
Johan Hovold <johan@kernel.org> says:

Make sure to call controller cleanup() if spi_setup() fails while
registering a device to avoid leaking any resources allocated by
setup().
2026-04-22 15:10:22 +01:00
Johan Hovold
a6e23843e9
spi: fix controller cleanup() documentation
The controller cleanup() callback is no longer called when releasing a
device, but rather when deregistering it (and on registration failures).

Fixes: c7299fea67 ("spi: Fix spi device unregister flow")
Cc: Saravana Kannan <saravanak@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410154907.129248-3-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:10:18 +01:00
Johan Hovold
db357034f7
spi: fix resource leaks on device setup failure
Make sure to call controller cleanup() if spi_setup() fails while
registering a device to avoid leaking any resources allocated by
setup().

Fixes: c7299fea67 ("spi: Fix spi device unregister flow")
Cc: stable@vger.kernel.org	# 5.13
Cc: Saravana Kannan <saravanak@kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410154907.129248-2-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:10:17 +01:00
Mark Brown
ad50f7bc5a
spi: axiado: spi: axiado: fix runtime pm imbalance on probe failure
Johan Hovold <johan@kernel.org> says:

The series fixes some runtime PM related issues in the axiado driver.

Included is also a couple of related cleanups.
2026-04-22 15:05:57 +01:00
Johan Hovold
2b20e67424
spi: axiado: clean up probe return value
Drop the redundant initialisation and return explicit zero on successful
probe to make the code more readable.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260421143925.1551781-4-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:05:53 +01:00
Johan Hovold
821f0951b2
spi: axiado: rename probe error labels
Rename the probe error labels after what they do.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260421143925.1551781-3-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:05:52 +01:00
Johan Hovold
cde1a784e4
spi: axiado: fix runtime pm imbalance on probe failure
Make sure that the controller is active before disabling clocks on late
probe failure and on driver unbind to avoid a clock disable imbalance.

Also make sure that the usage count is balanced on probe failure (e.g.
probe deferral) so that the controller can be suspended when a driver is
later bound.

Note that the runtime PM state can only be set when runtime PM is
disabled.

Fixes: e75a6b00ad ("spi: axiado: Add driver for Axiado SPI DB controller")
Cc: stable@vger.kernel.org	# 7.0
Cc: Vladimir Moravcevic <vmoravcevic@axiado.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260421143925.1551781-2-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-04-22 15:05:51 +01:00
Ethan Carter Edwards
b1aaf11101 fbdev: atyfb: Fix spelling mistake "enfore" -> "enforce"
Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 15:55:48 +02:00
Yuho Choi
9b8a9a3a6f fbdev: savage: fix probe-path EDID cleanup leaks
When CONFIG_FB_SAVAGE_I2C is enabled, savagefb_probe() can build both an
EDID-derived monspecs.modedb and a modelist from it before later failing.

The normal success path frees monspecs.modedb after the initial mode selection,
but the probe error path only deletes the I2C busses and misses the
EDID-derived allocations.

Free both the modelist and monspecs.modedb on the failed: unwind path.

Co-developed-by: Myeonghun Pak <mhun512@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Co-developed-by: Taegyu Kim <tmk5904@psu.edu>
Signed-off-by: Taegyu Kim <tmk5904@psu.edu>
Signed-off-by: Yuho Choi <dbgh9129@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 15:45:38 +02:00
Yuho Choi
869b93ba04 fbdev: offb: fix PCI device reference leak on probe failure
offb_init_nodriver() gets a referenced PCI device with pci_get_device().
If pci_enable_device() fails, the function returns without dropping that
reference.

Release the PCI device reference before returning from the
pci_enable_device() failure path.

Fixes: 5bda8f7b54 ("video: fbdev: offb: Call pci_enable_device() before using the PCI VGA device")
Co-developed-by: Myeonghun Pak <mhun512@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Co-developed-by: Taegyu Kim <tmk5904@psu.edu>
Signed-off-by: Taegyu Kim <tmk5904@psu.edu>
Signed-off-by: Yuho Choi <dbgh9129@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-22 15:45:38 +02:00