Commit Graph

1444038 Commits

Author SHA1 Message Date
John Johansen
e27bfb2ae9 apparmor: remove unnecessary goto and associated label
There is no need for a goto a label immediately following the
conditional block when the jump is the last statement in the block.

Fixes: 7306c41672 ("apparmor: release exe file resources on path failure")
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:18:17 -07:00
Zygmunt Krynicki
7306c41672 apparmor: release exe file resources on path failure
get_current_exe_path() takes both an exe_file reference and a path
reference before resolving the path name. If aa_path_name() failed, it
returned immediately and leaked both references.

Route the failure through the common cleanup path so fput() and path_put()
always run after the references are acquired.

Fixes: 8d34e16f7f ("apparmor: userns: Add support for execpath in userns")
Reviewed-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: Zygmunt Krynicki <me@zygoon.pl>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:08 -07:00
Zygmunt Krynicki
45cf568241 apparmor: fail policy unpack on accept2 allocation failure
unpack_pdb() may need to allocate a missing ACCEPT2 table for older policy
data. If that allocation failed, it set an error message but jumped to the
success path, returning a policydb with the required table missing.

Return -ENOMEM through the normal failure path when the ACCEPT2 allocation
fails. Remove the now-unused out label.

Fixes: 2e12c5f060 ("apparmor: add additional flags to extended permission.")
Reviewed-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: Zygmunt Krynicki <me@zygoon.pl>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:08 -07:00
Hongling Zeng
b7a2b49bba apparmor: Fix return in ns_mkdir_op
Return NULL instead of passing to ERR_PTR while error is zero.
  Fixes smatch warning:
    - security/apparmor/apparmorfs.c:1846 ns_mkdir_op() warn:
      passing zero to 'ERR_PTR'

Fixes: 88d5baf690 ("Change inode_operations.mkdir to return struct dentry *")
Reviewed-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
Georgia Garcia
59fe6fbc4c apparmor: remove or add symlinks to rawdata according to export_binary
When the export_binary parameter is set, then rawdata is available and
there should be a symbolic link for the rawdata in the profile
directory in apparmorfs. If the parameter is unset, then the symlinks
should not exist.

The issue arises when changing the value of export_binary on runtime
and replacing profiles. If export_binary was set when the profile was
originally loaded, then changed to 0 and the profile was reloaded,
then the symbolic links would still exist but would return ENOENT
because the rawdata no longer exists.

On the opposite side, if export_binary was unset when the profile was
originally loaded, then changed to 1 and the profile was reloaded,
then the symbolic links would not exist, even though the rawdata does.

Fixes: d61c57fde8 ("apparmor: make export of raw binary profile to userspace optional")
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
Georgia Garcia
7681ca43d2 apparmor: fix NULL pointer dereference in unpack_pdb
pdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer
dereference.

Fixes: 2e12c5f060 ("apparmor: add additional flags to extended permission.")
Signed-off-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
John Johansen
716d384ac7 apparmor: make fn_label_build() capable of handling not supported
Currently fn_label_build() callback fns must provide a transition or
failure. Change this so that a callback can indicate it should be
skipped/not be involved in the label being built.

This will be useful when building object labels based on mediation
flags, as to whether the label should be set.

Existing callers can keep treating NULL return as an error because
none of those callback fns support skipping, but instead of the old
error handling replace with AA_BUG.

Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
John Johansen
ed7cc1c6f2 apparmor: change fn_label_build() call to not return NULL
Previously fn_label_build() was accepting a NULL which represented
ENOMEM return and ERR_PTR for errors.

Clean this up by requiring the cb fn to return an ERR_PTR or valid
value.

Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
Maxime Bélair
7b42f95813 apparmor: fix potential UAF in aa_replace_profiles
The function aa_replace_profiles was accessing udata->size after calling
aa_put_loaddata(udata), causing a potential UAF.

Fixed this by saving the size to a local variable before dropping the
reference.

Fixes: 5ac8c355ae ("apparmor: allow introspecting the loaded policy pre internal transform")
Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Maxime Bélair <maxime.belair@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
John Johansen
b9b864fc72 apparmor: free rawdata as soon as possible
profiles can be pinned by file and other references, and can live long
after they have been replaced/removed. The rawdata however is no longer
needed, and can be freed earlier than the rest of the profile.

Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
Ryan Lee
32e92764d6 apparmor: grab ns lock and refresh when looking up changehat child profiles
There was a race condition involving change_hat and profile replacement in
which replacement of the parent profile during a changehat operation could
result in the list of children becoming empty and the changehat operation
failing. To prevent this:
 - grab the namespace lock until we've built the hat transition, and
 - use aa_get_newest_profile to avoid using stale profile objects.

Link: https://bugs.launchpad.net/bugs/2139664
Fixes: 89dbf1962a ("apparmor: move change_hat mediation to using labels")
Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
John Johansen
ad213bbbc0 apparmor: fix rawdata_f_data implicit flex array
rawdata_f_data has a blob of data that is allocated at its end but
not explicitly declared. Makes sure it is correctly declared as a
flex_rray.

Fixes: 63c16c3a76 ("apparmor: Initial implementation of raw policy blob compression")
Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:07 -07:00
Ryan Lee
1adefbd0d5 apparmor: use __label_make_stale in __aa_proxy_redirect
The macro is equivalent to OR-ing in the bitflag manually, but using the
macro consistently makes grepping for these occurrences easier.

Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
Maxime Bélair
1c8a839442 apparmor: propagate -ENOMEM correctly in unpack_table
Currently, if the `kvzalloc` in `unpack_table` fails, it returns NULL.
This is masked by `aa_dfa_unpack` which interprets NULL as a -EPROTO,
leading to confusing error messages in `apparmor_parser` [1].

The fixed behavior correctly propagates -ENOMEM on allocation failure.

Link: https://gitlab.com/apparmor/apparmor/-/issues/592
Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Maxime Bélair <maxime.belair@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
e750173640 apparmor: enable differential encoding
Differential encoding while present has not been made broadly
available, pending further review and testing. Now that has happened
advertise its availability to user space.

Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
Zygmunt Krynicki
654fe7505d apparmor: aa_label_alloc use aa_label_free on alloc failure
aa_label_alloc() allocates a secid before allocating or taking the label
proxy. If the later proxy step fails, the error path only freed the label
memory, leaking any resources initialized by aa_label_init().

Use aa_label_free() on the failure path so partially initialized labels
release their secid and other label resources before the backing memory is
freed.

Fixes: f1bd904175 ("apparmor: add the base fns() for domain labels")
Signed-off-by: Zygmunt Krynicki <me@zygoon.pl>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
Ruoyu Wang
a58cafd38b apparmor: check label build before no_new_privs test
aa_change_profile() builds a replacement label with
fn_label_build_in_scope() before the no_new_privs subset check. The build
helper can fail and return NULL or an ERR_PTR, but the result was passed
to aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL()
check.

Reuse the existing target-label build failure handling immediately after
the build. This preserves the current audit handling while preventing the
subset helper from dereferencing an invalid label.

Fixes: e00b02bb6a ("apparmor: move change_profile mediation to using labels")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
Andrew Morton
d62d9bfe05 security/apparmor/apparmorfs.c: conditionally compile get_loaddata_common_ref()
Some config did this:

security/apparmor/apparmorfs.c:177:28: warning: 'get_loaddata_common_ref' defined but not used [-Wunused-function]
  177 | static struct aa_loaddata *get_loaddata_common_ref(struct aa_common_ref *ref)

get_loaddata_common_ref() is only used if
CONFIG_SECURITY_APPARMOR_EXPORT_BINARY=y.

(Or of course move the function into that block if maintainers perfer)

Fixes: 8e135b8aee ("apparmor: fix race between freeing data and fs accessing it")
Cc: John Johansen <john.johansen@canonical.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
f86ee868fd apparmor: add a conditional version of get_newest_label
get_newest_label() will always return a refcount, on the profile it
returns. However there are cases where we only need the refcount
if the label is stale and get_newest_label() will return a different
label.

Optimize this by making the get/put happen conditionally, by keeping
a flag indicating if the get was performed and a put is needed.

Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
6d25e7b476 apparmor: fix refcount leak when updating the sk_ctx
Currently update_sk_ctx() transfers the plabel reference, unfortunately
it is also unconditionally put in the caller. Ideally we would make
the caller conditionally put the reference based on whether it was
transferred but for now just fix the bug by getting a reference.

Fixes: 88fec3526e ("apparmor: make sure unix socket labeling is correctly updated.")
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
b1aea2c196 apparmor: fix race in unix socket mediation when peer_path is used
The holding a reference to the peer_sk is not enough to ensure access
to the peer sk path. Accessing the path outside of the state lock
allows for a race with unix_release_sock(). Fix this by taking the
state lock and getting a reference to the path under lock.

Ideally for connected sockets we would cache this information so we
don't have to take the lock here. But for now just fix the race.

Fixes: bc6e5f6933 ("apparmor: Remove use of the double lock")
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
4483efe4f2 apparmor: fix shadowing of plabel that prevents cache from being updated
Unfortunately the plabel was being shadowed by an unused local var.
This didn't affect the mediation check but did cauase the cache to
not correctly be updated resulting in extra mediation checks.

Fixes: 88fec3526e ("apparmor: make sure unix socket labeling is correctly updated.")
Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 20:14:06 -07:00
John Johansen
c3382d1e69 apparmor: add Georgia Garcia as co-maintainer of apparmor
Georgia has agreed to help maintaining apparmor.

Signed-off-by: John Johansen <john.johansen@canonical.com>
2026-06-13 11:11:46 -07:00
Linus Torvalds
254f49634e Linux 7.1-rc1 2026-04-26 14:19:00 -07:00
Linus Torvalds
14479877c1 One more fix for the merge window to avoid a boot hang on
Raspberry Pi 3B by marking the VEC clk critical so it doesn't get
 turned off and hang the bus.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One more fix for the merge window to avoid a boot hang on
  Raspberry Pi 3B by marking the VEC clk critical so that it
  doesn't get turned off and hang the bus"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: bcm: rpi: Mark VEC clock as CLK_IGNORE_UNUSED
2026-04-26 14:03:20 -07:00
Linus Torvalds
20b64cf870 tsm for 7.1
- Drop class_create() for the "tsm" class
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Merge tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm

Pull PCIe TSP update from Dan Williams:
 "A small update for the TSM core. It is arguably a fix and coming in
  late as I have been offline the past few weeks:

   - Drop class_create() for the 'tsm' class"

* tag 'tsm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/devsec/tsm:
  virt: coco: change tsm_class to a const struct
2026-04-26 09:51:29 -07:00
Linus Torvalds
b935117fe6 First round of Kbuild fixes for 7.1
- kbuild: builddeb - avoid recompiles for non-cross-compiles
 
     Avoid triggering complete rebuilds for non-cross-compile Debian
     package builds by only triggering the rebuild of host tools for
     actual cross-compile builds.
 
   - kbuild: Never respect CONFIG_WERROR / W=e to fixdep
 
     Avoid spurious rebuilds of fixdep w/ and w/o -Werror during a single
     kbuild invocation by never respecting CONFIG_WERROR for fixdep.
 
 Cc: Masahiro Yamada <masahiroy@kernel.org>
 Cc: Mathias Krause <minipli@grsecurity.net>
 Cc: Nathan Chancellor <nathan@kernel.org>
 Cc: Thomas Weißschuh <linux@weissschuh.net>
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Merge tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild fixes from Nicolas Schier:

 - builddeb - avoid recompiles for non-cross-compiles

   Avoid triggering complete rebuilds for non-cross-compile Debian
   package builds by only triggering the rebuild of host tools for
   actual cross-compile builds

 - Never respect CONFIG_WERROR / W=e to fixdep

   Avoid spurious rebuilds of fixdep w/ and w/o -Werror during a single
   kbuild invocation by never respecting CONFIG_WERROR for fixdep

* tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: Never respect CONFIG_WERROR / W=e to fixdep
  kbuild: builddeb - avoid recompiles for non-cross-compiles
2026-04-25 17:04:15 -07:00
Linus Torvalds
2ff1bc41ef Power Utilities 2026.04.25
tools/power x86_energy_perf_policy: v2026.04.25
 
 	Since v2025.11.22:
 
 	Initial SoC Slider support
 
 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.
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Merge tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull power utility updates from Len Brown:
 "x86_energy_perf_policy:
   - Initial SoC Slider support

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

* tag 'power-utilities-2026.04.25' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power x86_energy_perf_policy: Version 2026.04.25
  tools/power x86_energy_perf_policy.8: Document SoC Slider Options
  tools/power x86_energy_perf_policy: Enhances SoC Slider related checks
  tools/power turbostat: v2026.04.21
  tools/power turbostat: Process HT siblings in CPU order
  tools/power turbostat: Show module_id column
  tools/power turbostat: Print core_id and apic_id in hex
  tools/power turbostat: Cleanup print helper functions
  tools/power turbostat: Fix --cpu-set 1 regression on HT systems
  tools/power turbostat: Fix --cpu-set 0 regression on HT systems
  tools/power turbostat: Fix unrecognized option '-P'
  tools/power turbostat: Fix AMD RAPL regression on big systems
  tools/power/x86: Add SOC slider and platform profile support
2026-04-25 16:58:34 -07:00
Linus Torvalds
211d593314 RTC for 7.1
Subsystem:
  - add data_race() in rtc_dev_poll()
 
 Drivers:
  - remove i2c_match_id usage
  - abx80x: Disable alarm feature if no interrupt attached
  - ti-k3: support resuming from IO DDR low power mode
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Merge tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Subsystem:
   - add data_race() in rtc_dev_poll()

  Drivers:
   - remove i2c_match_id usage
   - abx80x: Disable alarm feature if no interrupt attached
   - ti-k3: support resuming from IO DDR low power mode"

* tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: abx80x: Disable alarm feature if no interrupt attached
  rtc: ntxec: fix OF node reference imbalance
  rtc: pic32: allow driver to be compiled with COMPILE_TEST
  rtc: ti-k3: Add support to resume from IO DDR low power mode
  rtc: cmos: Use platform_get_irq_optional() in cmos_platform_probe()
  dt-bindings: rtc: add olpc,xo1-rtc to trivial-rtc
  dt-bindings: rtc: sc2731: Add compatible for SC2730
  rtc: add data_race() in rtc_dev_poll()
  rtc: armada38x: zalloc + calloc to single allocation
  dt-bindings: rtc: isl12026: convert to YAML schema
  dt-bindings: rtc: microcrystal,rv3028: Allow to specify vdd-supply
  rtc: max77686: convert to i2c_new_ancillary_device
  dt-bindings: rtc: mpfs-rtc: permit resets
  rtc: rx8025: Remove use of i2c_match_id()
  rtc: rv8803: Remove use of i2c_match_id()
  rtc: rs5c372: Remove use of i2c_match_id()
  rtc: pcf2127: Remove use of i2c_match_id()
  rtc: m41t80: Remove use of i2c_match_id()
  rtc: abx80x: Remove use of i2c_match_id()
2026-04-25 16:39:03 -07:00
Linus Torvalds
1d9f1b5e43 Here are the accumulated fixes for 7.1-rc1 and a single structural worth of
mentioning separately: Rafael's commit converting tpm_crb from ACPI driver
 to a platform driver. Starting from this release cycle, the branch with TPM
 changes mirrored to next is 'for-next-tpm', and patches for keys have their
 own separate 'for-next-keys' branch.
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Merge tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "Here are the accumulated fixes for 7.1-rc1 and a single structural
  change worth mentioning separately: Rafael's commit converting tpm_crb
  from ACPI driver to a platform driver"

* tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: tpm_tis: stop transmit if retries are exhausted
  tpm: tpm_tis: add error logging for data transfer
  tpm: avoid -Wunused-but-set-variable
  tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
  tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()
  tpm: Fix auth session leak in tpm2_get_random() error path
  tpm: i2c: atmel: fix block comment formatting
  tpm_crb: Convert ACPI driver to a platform one
  tpm: Make tcpci_pm_ops variable static const
2026-04-25 16:20:52 -07:00
Len Brown
6112da1ea4 Merge branches 'turbostat' and 'x86_energy_perf_policy' into power-utilities 2026-04-25 14:26:32 -04:00
Len Brown
f1c35c7319 tools/power x86_energy_perf_policy: Version 2026.04.25
Since v2025.11.22:
	Initial SoC Slider support
	SoC Slider is an SoC-wide power/performance policy setting.
	On SoC Slider systems, EPP plays a diminished role.

Whitespace cleanup via: indent -npro -kr -i8 -ts8 -sob -l160 -ss -ncs -cp1

No functional changes

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-25 14:18:45 -04:00
Len Brown
18c5b9ea4e tools/power x86_energy_perf_policy.8: Document SoC Slider Options
x86_energy_perf_policy accesses the SoC Slider via standard
user/kernel APIs to the processor_thermal_soc_slider driver.

Machines that support SoC Slider largely use it instead of EPP,
which may continue to exist in a diminished role, or vanish entirely.

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-25 14:16:53 -04:00
Len Brown
25ff5848c0 tools/power x86_energy_perf_policy: Enhances SoC Slider related checks
When processor_thermal_soc_slider is loaded, its slider
and offset modparams are visible.  Check that the driver
actually registered the profile named "SoC Slider" before
reading or writing these modparams.

n.b. This utility allows writing the Slider and Offset modparams
even if the driver policy is not "balanced".  Currently the
processor_thermal_soc_slider consults those modparams
only in "balanced" mode.

Signed-off-by: Len Brown <len.brown@intel.com>
2026-04-25 14:10:13 -04:00
Maíra Canal
522567362b
clk: bcm: rpi: Mark VEC clock as CLK_IGNORE_UNUSED
On Raspberry Pi 3B, the VEC clock is used by the VideoCore firmware
display driver, which remains active until the vc4 driver loads and
sends NOTIFY_DISPLAY_DONE. If this clock is disabled during boot, a bus
lockup happens and the firmware becomes unresponsive, causing a complete
system lockup.

Mark the VEC clock with CLK_IGNORE_UNUSED so it survives the unused
clock disablement and remains available until the vc4 driver takes over
display management.

Fixes: 672299736a ("clk: bcm: rpi: Manage clock rate in prepare/unprepare callbacks")
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/r/5f0bec08-f458-4fba-8bf3-06817a100c4c@sirena.org.uk
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patch.msgid.link/20260401111416.562279-2-mcanal@igalia.com
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Brian Masney <bmasney@redhat.com> # Active contributor to clk
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2026-04-25 10:51:23 -07:00
Linus Torvalds
897d54018c fbdev fixes & cleanups for 7.1-rc1:
- request memory region before use (cobalt_lcdfb, clps711x-fb, hgafb)
 - reference cleanups in failure path (offb, savage)
 - a spelling fix (atyfb)
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Merge tag 'fbdev-for-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - request memory region before use (cobalt_lcdfb, clps711x-fb, hgafb)

 - reference cleanups in failure path (offb, savage)

 - a spelling fix (atyfb)

* tag 'fbdev-for-7.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: hgafb: Request memory region before ioremap
  fbdev: clps711x-fb: Request memory region for MMIO
  fbdev: cobalt_lcdfb: Request memory region
  fbdev: atyfb: Fix spelling mistake "enfore" -> "enforce"
  fbdev: savage: fix probe-path EDID cleanup leaks
  fbdev: offb: fix PCI device reference leak on probe failure
2026-04-25 07:48:33 -07:00
Linus Torvalds
129d6eb266 ARM development for 7.1-rc1
Several development updates for 7.1-rc1:
 - fix a race condition handling PG_dcache_clean
 - further cleanups for the fault handling, allowing RT to be enabled
 - fixing nzones validation in adfs filesystem driver
 - fix for module unwinding
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM updates from Russell King:

 - fix a race condition handling PG_dcache_clean

 - further cleanups for the fault handling, allowing RT to be enabled

 - fixing nzones validation in adfs filesystem driver

 - fix for module unwinding

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9463/1: Allow to enable RT
  ARM: 9472/1: fix race condition on PG_dcache_clean in __sync_icache_dcache()
  ARM: 9471/1: module: fix unwind section relocation out of range error
  fs/adfs: validate nzones in adfs_validate_bblk()
  ARM: provide individual is_translation_fault() and is_permission_fault()
  ARM: move FSR fault status definitions before fsr_fs()
  ARM: use BIT() and GENMASK() for fault status register fields
  ARM: move is_permission_fault() and is_translation_fault() to fault.h
  ARM: move vmalloc() lazy-page table population
  ARM: ensure interrupts are enabled in __do_user_fault()
2026-04-25 07:44:26 -07:00
Linus Torvalds
27d128c1cf ring-buffer fix for 7.1:
- Fix accounting of persistent ring buffer rewind
 
   On boot up, the head page is moved back to the earliest point of
   the saved ring buffer. This is because the ring buffer being read by
   user space on a crash may not save the part it read. Rewinding the head
   page back to the earliest saved position helps keep those events from
   being lost.
 
   The number of events is also read during boot up and displayed in the
   stats file in the tracefs directory. It's also used for other accounting
   as well. On boot up, the "reader page" is accounted for but a rewind may
   put it back into the buffer and then the reader page may be accounted
   for again.
 
   Save off the original reader page and skip accounting it when scanning
   the pages in the ring buffer.
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Merge tag 'trace-ring-buffer-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ring-buffer fix from Steven Rostedt:

 - Fix accounting of persistent ring buffer rewind

   On boot up, the head page is moved back to the earliest point of the
   saved ring buffer. This is because the ring buffer being read by user
   space on a crash may not save the part it read. Rewinding the head
   page back to the earliest saved position helps keep those events from
   being lost.

   The number of events is also read during boot up and displayed in the
   stats file in the tracefs directory. It's also used for other
   accounting as well. On boot up, the "reader page" is accounted for
   but a rewind may put it back into the buffer and then the reader page
   may be accounted for again.

   Save off the original reader page and skip accounting it when
   scanning the pages in the ring buffer.

* tag 'trace-ring-buffer-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Do not double count the reader_page
2026-04-24 15:17:23 -07:00
Linus Torvalds
f3e3dbcea1 block-7.1-20260424
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Merge tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block fixes from Jens Axboe:

 - Series for zloop, fixing a variety of issues

 - t10-pi code cleanup

 - Fix for a merge window regression with the bio memory allocation mask

 - Fix for a merge window regression in ublk, caused by an issue with
   the maple tree iteration code at teardown

 - ublk self tests additions

 - Zoned device pgmap fixes

 - Various little cleanups and fixes

* tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (21 commits)
  Revert "floppy: fix reference leak on platform_device_register() failure"
  ublk: avoid unpinning pages under maple tree spinlock
  ublk: refactor common helper ublk_shmem_remove_ranges()
  ublk: fix maple tree lockdep warning in ublk_buf_cleanup
  selftests: ublk: add ublk auto integrity test
  selftests: ublk: enable test_integrity_02.sh on fio 3.42
  selftests: ublk: remove unused argument to _cleanup
  block: only restrict bio allocation gfp mask asked to block
  block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users
  block: Add WQ_PERCPU to alloc_workqueue users
  block: relax pgmap check in bio_add_page for compatible zone device pages
  block: add pgmap check to biovec_phys_mergeable
  floppy: fix reference leak on platform_device_register() failure
  ublk: use unchecked copy helpers for bio page data
  t10-pi: reduce ref tag code duplication
  zloop: remove irq-safe locking
  zloop: factor out zloop_mark_{full,empty} helpers
  zloop: set RQF_QUIET when completing requests on deleted devices
  zloop: improve the unaligned write pointer warning
  zloop: use vfs_truncate
  ...
2026-04-24 15:06:55 -07:00
Linus Torvalds
fa58e6e900 io_uring-7.1-20260424
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Merge tag 'io_uring-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a NOMMU bug with io_uring, where NOMMU doesn't grab page refs
   at mmap time. NOMMU also has entirely broken FOLL_PIN support, yet
   here we are

 - A few fixes covering minor issues introduced in this merge window

 - data race annotation to shut up KCSAN for when io-wq limits are
   applied

 - A nospec addition for direct descriptor file updating. Rest of the
   direct descriptor path already had this, but for some reason the
   update did not. Now they are all the same

 - Various minor defensive changes that claude identified and suggested
   terrible fixes for, turned into actually useful cleanups:

       - Use kvfree() for the imu cache. These can come from kmalloc or
         vmalloc depending on size, but the in-cache ones are capped
         where it's always kmalloc based. Change to kvfree() in the
         cleanup path, making future changes unlikely to mess that up

       - Negative kbuf consumption lengths. Can't happen right now, but
         cqe->res is used directly, which if other codes changes could
         then be an error value

 - Fix for an issue with the futex code, where partial wakes on a
   vectored fuxes would potentially wake the same futex twice, rather
   than move on to the next one. This could confuse an application as it
   would've expected the next futex to have been woken

 - Fix for a bug with ring resizing, where SQEs or CQEs might not have
   been copied correctly if large SQEs or CQEs are used in the ring.
   Application side issue, where SQEs or CQEs might have been lost
   during resize

 - Fix for a bug where EPOLL_URING_WAKE might have been lost, causing a
   multishot poll to not be terminated when it's nested, like it should
   have been

 - Fix for an issue with signed comparison of poll references for the
   slow path

 - Fix for a user struct UAF in the zcrx code

 - Two minor zcrx cleanups

* tag 'io_uring-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: take page references for NOMMU pbuf_ring mmaps
  io_uring/poll: ensure EPOLL_ONESHOT is propagated for EPOLL_URING_WAKE
  io_uring/zcrx: warn on freelist violations
  io_uring/zcrx: clear RQ headers on init
  io_uring/zcrx: fix user_struct uaf
  io_uring/register: fix ring resizing with mixed/large SQEs/CQEs
  io_uring/futex: ensure partial wakes are appropriately dequeued
  io_uring/rw: add defensive hardening for negative kbuf lengths
  io_uring/rsrc: use kvfree() for the imu cache
  io_uring/rsrc: unify nospec indexing for direct descriptors
  io_uring: fix spurious fput in registered ring path
  io_uring: fix iowq_limits data race in tctx node addition
  io_uring/tctx: mark io_wq as exiting before error path teardown
  io_uring/tctx: check for setup tctx->io_wq before teardown
  io_uring/poll: fix signed comparison in io_poll_get_ownership()
2026-04-24 15:00:54 -07:00
Linus Torvalds
b85900e91c NFS client updates for Linux 7.1
Highlights include:
 
 Bugfixes:
 - NFS: Fix handling of ENOSPC so that if we have to resend writes, they
   are written synchronously.
 - SUNRPC: RDMA transport fixes from Chuck
 - NFSv4.2: Several fixes for delegated timestamps
 - NFSv4: Failure to obtain a directory delegation should not cause
   stat() to fail.
 - NFSv4: Rename was failing to update timestamps when a directory
   delegation is held.
 - NFSv4: Ensure we check rsize/wsize after crossing a NFSv4 filesystem
   boundary.
 - NFSv4/pnfs: If the server is down, retry the layout returns on reboot
 - NFSv4/pnfs: Fallback to MDS could result in a short write being
   incorrectly logged.
 
 Cleanups:
 - NFS: use memcpy_and_pad in decode_fh
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Merge tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Bugfixes:

   - Fix handling of ENOSPC so that if we have to resend writes, they
     are written synchronously

   - SUNRPC RDMA transport fixes from Chuck

   - Several fixes for delegated timestamps in NFSv4.2

   - Failure to obtain a directory delegation should not cause stat() to
     fail with NFSv4

   - Rename was failing to update timestamps when a directory delegation
     is held on NFSv4

   - Ensure we check rsize/wsize after crossing a NFSv4 filesystem
     boundary

   - NFSv4/pnfs:

      - If the server is down, retry the layout returns on reboot

      - Fallback to MDS could result in a short write being incorrectly
        logged

  Cleanups:

   - Use memcpy_and_pad in decode_fh"

* tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (21 commits)
  NFS: Fix RCU dereference of cl_xprt in nfs_compare_super_address
  NFS: remove redundant __private attribute from nfs_page_class
  NFSv4.2: fix CLONE/COPY attrs in presence of delegated attributes
  NFS: fix writeback in presence of errors
  nfs: use memcpy_and_pad in decode_fh
  NFSv4.1: Apply session size limits on clone path
  NFSv4: retry GETATTR if GET_DIR_DELEGATION failed
  NFS: fix RENAME attr in presence of directory delegations
  pnfs/flexfiles: validate ds_versions_cnt is non-zero
  NFS/blocklayout: print each device used for SCSI layouts
  xprtrdma: Post receive buffers after RPC completion
  xprtrdma: Scale receive batch size with credit window
  xprtrdma: Replace rpcrdma_mr_seg with xdr_buf cursor
  xprtrdma: Decouple frwr_wp_create from frwr_map
  xprtrdma: Close lost-wakeup race in xprt_rdma_alloc_slot
  xprtrdma: Avoid 250 ms delay on backlog wakeup
  xprtrdma: Close sendctx get/put race that can block a transport
  nfs: update inode ctime after removexattr operation
  nfs: fix utimensat() for atime with delegated timestamps
  NFS: improve "Server wrote zero bytes" error
  ...
2026-04-24 14:20:03 -07:00
Linus Torvalds
ac2dc6d574 We have a series from Alex which extends CephFS client metrics with
support for per-subvolume data I/O performance and latency tracking
 (metadata operations aren't included) and a good variety of fixes and
 cleanups across RBD and CephFS.
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Merge tag 'ceph-for-7.1-rc1' of https://github.com/ceph/ceph-client

Pull ceph updates from Ilya Dryomov:
 "We have a series from Alex which extends CephFS client metrics with
  support for per-subvolume data I/O performance and latency tracking
  (metadata operations aren't included) and a good variety of fixes and
  cleanups across RBD and CephFS"

* tag 'ceph-for-7.1-rc1' of https://github.com/ceph/ceph-client:
  ceph: add subvolume metrics collection and reporting
  ceph: parse subvolume_id from InodeStat v9 and store in inode
  ceph: handle InodeStat v8 versioned field in reply parsing
  libceph: Fix slab-out-of-bounds access in auth message processing
  rbd: fix null-ptr-deref when device_add_disk() fails
  crush: cleanup in crush_do_rule() method
  ceph: clear s_cap_reconnect when ceph_pagelist_encode_32() fails
  ceph: only d_add() negative dentries when they are unhashed
  libceph: update outdated comment in ceph_sock_write_space()
  libceph: Remove obsolete session key alignment logic
  ceph: fix num_ops off-by-one when crypto allocation fails
  libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()
2026-04-24 13:47:19 -07:00
Linus Torvalds
ff9726d7a0 Description for this pull request:
- Fix potential data leakage by zeroing the portion of the straddle block
    beyond initialized_size when reading non-resident attributes.
  - Remove unnecessary zeroing in ntfs_punch_hole() for ranges beyond
    initialized_size, as they are already returned as zeros on read.
  - Fix writable check in ntfs_file_mmap_prepare() to correctly handle
    shared mappings using VMA_SHARED_BIT | VMA_MAYWRITE_BIT.
  - Use page allocation instead of kmemdup() for IOMAP_INLINE data to
    ensure page-aligned address and avoid BUG trap in
    iomap_inline_data_valid() caused by the page boundary check.
  - Add a size check before memory allocation in ntfs_attr_readall() and
    reject overly large attributes.
  - Remove unneeded noop_direct_IO from ntfs_aops as it is no longer
    required following the FMODE_CAN_ODIRECT flag.
  - Fix seven static analysis warnings reported by Smatch.
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Merge tag 'ntfs-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs

Pull ntfs updates from Namjae Jeon:

 - Fix potential data leakage by zeroing the portion of the straddle
   block beyond initialized_size when reading non-resident attributes

 - Remove unnecessary zeroing in ntfs_punch_hole() for ranges beyond
   initialized_size, as they are already returned as zeros on read

 - Fix writable check in ntfs_file_mmap_prepare() to correctly handle
   shared mappings using VMA_SHARED_BIT | VMA_MAYWRITE_BIT

 - Use page allocation instead of kmemdup() for IOMAP_INLINE data to
   ensure page-aligned address and avoid BUG trap in
   iomap_inline_data_valid() caused by the page boundary check

 - Add a size check before memory allocation in ntfs_attr_readall() and
   reject overly large attributes

 - Remove unneeded noop_direct_IO from ntfs_aops as it is no longer
   required following the FMODE_CAN_ODIRECT flag

 - Fix seven static analysis warnings reported by Smatch

* tag 'ntfs-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
  ntfs: use page allocation for resident attribute inline data
  ntfs: fix mmap_prepare writable check for shared mappings
  ntfs: fix potential 32-bit truncation in ntfs_write_cb()
  ntfs: fix uninitialized variable in ntfs_map_runlist_nolock
  ntfs: delete dead code
  ntfs: add missing error code in ntfs_mft_record_alloc()
  ntfs: fix uninitialized variables in ntfs_ea_set_wsl_inode()
  ntfs: fix uninitialized pointer in ntfs_write_mft_block
  ntfs: fix uninitialized variable in ntfs_write_simple_iomap_begin_non_resident
  ntfs: remove noop_direct_IO from address_space_operations
  ntfs: limit memory allocation in ntfs_attr_readall
  ntfs: not zero out range beyond init in punch_hole
  ntfs: zero out stale data in straddle block beyond initialized_size
2026-04-24 13:40:25 -07:00
Linus Torvalds
bdcb864c71 - 9p access flag fix (cannot change access flag since new mount API implem)
- some minor cleanup
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Merge tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:

 - 9p access flag fix (cannot change access flag since new mount API implem)

 - some minor cleanup

* tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux:
  9p/trans_xen: replace simple_strto* with kstrtouint
  9p/trans_xen: make cleanup idempotent after dataring alloc errors
  9p: document missing enum values in kernel-doc comments
  9p: fix access mode flags being ORed instead of replaced
  9p: fix memory leak in v9fs_init_fs_context error path
2026-04-24 13:37:26 -07:00
Linus Torvalds
f9569c6ce4 SPDX change for 7.1-rc1
Here is a single SPDX-like change for 7.1-rc1.  It explicitly allows the
 use of SPDX-FileCopyrightText which has been used already in many files.
 At the same time, update checkpatch to catch any "non allowed" spdx
 identifiers as we don't want to go overboard here.
 
 This has been in linux-next for a long time with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX update from Greg KH:
 "Here is a single SPDX-like change for 7.1-rc1. It explicitly allows
  the use of SPDX-FileCopyrightText which has been used already in many
  files.

  At the same time, update checkpatch to catch any "non allowed" spdx
  identifiers as we don't want to go overboard here.

  This has been in linux-next for a long time with no reported problems"

* tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  LICENSES: Explicitly allow SPDX-FileCopyrightText
2026-04-24 13:30:54 -07:00
Linus Torvalds
cb4eb6771c Char/Misc/IIO/and others driver updates for 7.1-rc1
Here is the char/misc/iio and other smaller driver subsystem updates for
 7.1-rc1.  Lots of stuff in here, all tiny, but relevant for the
 different drivers they touch.  Major points in here is:
   - the usual large set of new IIO drivers and updates for that
     subsystem (the large majority of this diffstat)
   - lots of comedi driver updates and bugfixes
   - coresight driver updates
   - interconnect driver updates and additions
   - mei driver updates
   - binder (both rust and C versions) updates and fixes
   - lots of other smaller driver subsystem updates and additions
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc / IIO / and others driver updates from Greg KH:
 "Here is the char/misc/iio and other smaller driver subsystem updates
  for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the
  different drivers they touch. Major points in here is:

   - the usual large set of new IIO drivers and updates for that
     subsystem (the large majority of this diffstat)

   - lots of comedi driver updates and bugfixes

   - coresight driver updates

   - interconnect driver updates and additions

   - mei driver updates

   - binder (both rust and C versions) updates and fixes

   - lots of other smaller driver subsystem updates and additions

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits)
  coresight: tpdm: fix invalid MMIO access issue
  mei: me: add nova lake point H DID
  mei: lb: add late binding version 2
  mei: bus: add mei_cldev_uuid
  w1: ds2490: drop redundant device reference
  bus: mhi: host: pci_generic: Add Telit FE912C04 modem support
  mei: csc: wake device while reading firmware status
  mei: csc: support controller with separate PCI device
  mei: convert PCI error to common errno
  mei: trace: print return value of pci_cfg_read
  mei: me: move trace into firmware status read
  mei: fix idle print specifiers
  mei: me: use PCI_DEVICE_DATA macro
  sonypi: Convert ACPI driver to a platform one
  misc: apds990x: fix all kernel-doc warnings
  most: usb: Use kzalloc_objs for endpoint address array
  hpet: Convert ACPI driver to a platform one
  misc: vmw_vmci: Fix spelling mistakes in comments
  parport: Remove completed item from to-do list
  char: remove unnecessary module_init/exit functions
  ...
2026-04-24 13:23:50 -07:00
Linus Torvalds
b2680ba4a2 spi: Fixes for v7.1
This is quite a big set of fixes, almost all from Johan Hovold who is on
 an ongoing quest to clean up issues with probe and removal handling in
 drivers.  There isn't anything too concerning here especially with the
 deregistration stuff which will very rarely get run in production
 systems since this is all platform devices in the SoC on embedded
 hardware, but it's all real issues which should be fixed.  There's more
 in flight here.
 
 We also have a few other minor fixes, one from Felix Gu along the same
 lines as Johan's work and a couple of documentation things.
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Merge tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "This is quite a big set of fixes, almost all from Johan Hovold who is
  on an ongoing quest to clean up issues with probe and removal handling
  in drivers.

  There isn't anything too concerning here especially with the
  deregistration stuff which will very rarely get run in production
  systems since this is all platform devices in the SoC on embedded
  hardware, but it's all real issues which should be fixed. There's more
  in flight here.

  We also have a few other minor fixes, one from Felix Gu along the same
  lines as Johan's work and a couple of documentation things"

* tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (23 commits)
  spi: fix controller cleanup() documentation
  spi: fix resource leaks on device setup failure
  spi: axiado: clean up probe return value
  spi: axiado: rename probe error labels
  spi: axiado: fix runtime pm imbalance on probe failure
  spi: orion: clean up probe return value
  spi: orion: fix clock imbalance on registration failure
  spi: orion: fix runtime pm leak on unbind
  spi: imx: fix runtime pm leak on probe deferral
  spi: mpc52xx: fix use-after-free on registration failure
  spi: Fix the error description in the `ptp_sts_word_post` comment
  spi: topcliff-pch: fix use-after-free on unbind
  spi: topcliff-pch: fix controller deregistration
  spi: orion: fix controller deregistration
  spi: mxic: fix controller deregistration
  spi: mpc52xx: fix use-after-free on unbind
  spi: mpc52xx: fix controller deregistration
  spi: cadence-quadspi: fix controller deregistration
  spi: cadence: fix controller deregistration
  spi: mtk-snfi: fix memory leak in probe
  ...
2026-04-24 13:16:36 -07:00
Linus Torvalds
f643998361 regulator: Fix for v7.1
There's just one trivial cleanup of the user visible prompts in Kconfig
 here, standardising how we describe Qualcomm.
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Merge tag 'regulator-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Just one trivial cleanup of the user visible prompts in Kconfig here,
  standardising how we describe Qualcomm"

* tag 'regulator-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: qcom: Unify user-visible "Qualcomm" name
2026-04-24 13:06:25 -07:00
Masami Hiramatsu (Google)
92d5a60672 ring-buffer: Do not double count the reader_page
Since the cpu_buffer->reader_page is updated if there are unwound
pages. After that update, we should skip the page if it is the
original reader_page, because the original reader_page is already
checked.

Cc: stable@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/177701353063.2223789.1471163147644103306.stgit@mhiramat.tok.corp.google.com
Fixes: ca296d32ec ("tracing: ring_buffer: Rewind persistent ring buffer on reboot")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-04-24 15:34:39 -04:00
Linus Torvalds
6e2d43100c regmap: Fixes for v7.1
There's couple of patches here that came in since my pull request:
 
  - What is effectively a quirk for shoehorning support for a wider range
    of I2C regmaps on weirdly restricted SMBus controllers.
  - One minor fix for a memory leak on in error handling in the dummy
    driver used by the KUnit tests.
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Merge tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "There's couple of patches here that came in since my pull request:

   - What is effectively a quirk for shoehorning support for a wider
     range of I2C regmaps on weirdly restricted SMBus controllers

   - One minor fix for a memory leak on in error handling in the dummy
     driver used by the KUnit tests"

* tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: ram: fix memory leaks in __regmap_init_ram() on error
  regmap-i2c: add SMBus byte/word reg16 bus for adapters lacking I2C_FUNC_I2C
2026-04-24 12:11:26 -07:00