Store common handle IDs in "struct kcov_common_handle_id", which consumes
no space in non-KCOV builds.
This cleanup removes #ifdef boilerplate code from subsystems that
integrate with KCOV (in particular in usbip_common.h and skbuff.h, see the
diffstat).
This should also make it easier to add KCOV remote coverage to more
subsystems in the future.
Link: https://lore.kernel.org/20260430-kcov-refactor-common-handle-v1-1-23a0c7a0ba38@google.com
Signed-off-by: Jann Horn <jannh@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Hongren (Zenithal) Zheng <i@zenithal.me>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Now that we've got the same config selecting inline vs outline
copy_to_user() and copy_from_user(), we can simplify the corresponding
logic in the uaccess.h.
Link: https://lore.kernel.org/20260425020857.356850-4-ynorov@nvidia.com
Fixes: 1f9a8286bc ("uaccess: always export _copy_[from|to]_user with CONFIG_RUST")
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Viktor Malik <vmalik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The kernel allows arches to select between inline and outline
implementations of the copy_{from,to}_user() by defining individual
INLINE_COPY_FROM_USER and INLINE_COPY_TO_USER, correspondingly. However,
all arches enable or disable them always together.
Without the real use-case for one helper being inlined while the other
outlined, having independent controls is excessive and error prone.
Switch the codebase to the single unified INLINE_COPY_USER control.
Link: https://lore.kernel.org/20260425020857.356850-3-ynorov@nvidia.com
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Viktor Malik <vmalik@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "uaccess: unify inline vs outline copy_{from,to}_user()
selection", v2.
The kernel allows arches to select between inline and outline
implementations of the copy_{from,to}_user() by defining individual
INLINE_COPY_FROM_USER and INLINE_COPY_TO_USER, correspondingly. However,
all arches enable or disable them always together.
Without the real use-case for one helper being inlined while the other
outlined, having independent controls is excessive and error prone.
The first patch of the series fixes rust/uaccess coppy_to_user() wrapper
guarded with INLINE_COPY_FROM_USER. The 2nd patch switches codebase to
the unified INLINE_COPY_USER. And the last patch cleans up ifdefery in
the include/linux/uaccess.h
This patch (of 3):
The copy_to_user() rust helper is only needed when the main kernel inlines
the function. It is controlled by INLINE_COPY_TO_USER, but the rust
helper is protected with INLINE_COPY_FROM_USER.
Fix that.
Link: https://lore.kernel.org/20260425020857.356850-1-ynorov@nvidia.com
Link: https://lore.kernel.org/20260425020857.356850-2-ynorov@nvidia.com
Fixes: d99dc586ca ("uaccess: decouple INLINE_COPY_FROM_USER and CONFIG_RUST")
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Reported-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Closes: https://lore.kernel.org/all/746c9c50-20c4-4dc9-a539-bf1310ff9414@kernel.org/
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Viktor Malik <vmalik@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The filelock test checks four different things but only reports an overall
status, convert to use ksft_test_result() for these individual tests.
Each test depends on the previous ones so we still bail out if any of them
fail but we get a bit more information from UIs parsing the results.
Link: https://lore.kernel.org/20260226-selftest-filelock-ktap-v4-2-db8ae192ff42@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "selftests/filelock: Make output more kselftestish", v4.
This series makes the output from the ofdlocks test a bit easier for
tooling to work with, and also ignores the generated file while we're
here.
This patch (of 3):
The ofdlocks test reports some errors via perror() which does not produce
KTAP output, convert to ksft_perror() which does.
Link: https://lore.kernel.org/20260226-selftest-filelock-ktap-v4-0-db8ae192ff42@kernel.org
Link: https://lore.kernel.org/20260226-selftest-filelock-ktap-v4-1-db8ae192ff42@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The @padding kernel-doc for base64_decode() says "whether to append '='
padding characters", which was copy-pasted from base64_encode(). In the
decode context, it controls whether the input is expected to include
padding, not whether to append it.
Link: https://lore.kernel.org/20260324223210.47676-3-objecting@objecting.org
Signed-off-by: Josh Law <objecting@objecting.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "lib/base64: decode fixes", v2.
Two small fixes for lib/base64.c:
1. base64_decode() writes a decoded byte to the output buffer before
validating the input in the trailing-bytes path. Move the validity
checks before any writes so dst is untouched on invalid input.
2. The @padding kernel-doc for base64_decode() was copy-pasted from
base64_encode() and describes the wrong direction.
This patch (of 2):
The trailing-bytes path in base64_decode() writes a decoded byte to the
output buffer before checking whether the input characters are valid. If
the input is malformed, garbage is written to dst before the function
returns -1.
Move the validity checks before any writes so the output buffer is left
untouched on invalid input.
Link: https://lore.kernel.org/20260324223210.47676-1-objecting@objecting.org
Link: https://lore.kernel.org/20260324223210.47676-2-objecting@objecting.org
Fixes: 9c7d3cf94d ("lib/base64: rework encode/decode for speed and stricter validation")
Signed-off-by: Josh Law <objecting@objecting.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Any __exitcall() and built-in module_exit() handler is marked as __used,
which leads to the code being included in the object file and later
discarded at link time.
As far as I can tell, this was originally added at the same time as
initcalls were marked the same way, to prevent them from getting dropped
with gcc-3.4, but it was never actaully necessary to keep exit functions
around.
Mark them as __maybe_unused instead, which lets the compiler treat the
exitcalls as entirely unused, and make better decisions about dropping
specializing static functions called from these.
Link: https://lore.kernel.org/all/acruxMNdnUlyRHiy@google.com/
Link: https://lore.kernel.org/20260331142846.3187706-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Schier <nsc@kernel.org>
Cc: Andriy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Kees Cook <kees@kernel.org>
Cc: Marco Elver <elver@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "lib/tests: string_helpers: Slight improvements".
Two ad-hoc patches to improve the test module. It was induced by another
patch that poorly tried to add (existing) test cases and make me revisit
string_helpers_kunit.c.
This patch (of 2):
Currently the escape and unescape test cases go in one step. Decouple
them for the better granularity and understanding test coverage in the
results.
Link: https://lore.kernel.org/20260406193425.1534197-1-andriy.shevchenko@linux.intel.com
Link: https://lore.kernel.org/20260406193425.1534197-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Kees Cook <kees@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Clean up inconsistent indentation (mixing tabs and spaces) and remove
extraneous whitespace in several Kconfig files across the tree. This is a
purely cosmetic change to improve readability.
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Link: https://lore.kernel.org/20260407053945.14116-1-linux.amoon@gmail.com
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz> [fs]
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> [mm]
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org> [mm]
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add a --json flag to get_maintainer.pl that emits structured JSON output,
making results machine-parseable for CI systems, IDE integrations, and
AI-assisted development tools.
The JSON output includes a maintainers array with structured name, email,
and role fields, plus optional arrays for scm, status, subsystem, web, and
bug information when those flags are enabled.
Normal text output behavior is completely unchanged when --json is not
specified.
Assisted-by: Claude:claude-opus-4-6
Link: https://lore.kernel.org/20260408194542.1354549-1-sashal@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The seq_buf KUnit suite does not exercise seq_buf_putmem_hex().
Add one test for the len > 8 chunking path and one overflow test where a
later chunk no longer fits in the buffer.
Export seq_buf_putmem_hex() as well so SEQ_BUF_KUNIT_TEST=m links cleanly.
Without the export, modpost reports seq_buf_putmem_hex as undefined when
seq_buf_kunit is built as a module.
Link: https://lore.kernel.org/20260408202351.21829-1-shuvampandey1@gmail.com
Signed-off-by: Shuvam Pandey <shuvampandey1@gmail.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: David Gow <david@davidgow.net>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add a kselftest for the taskstats TGID aggregation fix.
The test creates a worker thread, snapshots TGID taskstats while the
worker is still alive, lets the worker exit, and then verifies that the
TGID CPU total does not regress after the thread has been reaped.
The pass/fail check intentionally keys off ac_utime + ac_stime only, which
is the primary user-visible regression fixed by the taskstats change and
is less sensitive to scheduling noise than context-switch counters.
Link: https://lore.kernel.org/0d55354911c54cd1b9f10a09f6fd378af85c8d43.1776094300.git.cyyzero16@gmail.com
Signed-off-by: Yiyang Chen <cyyzero16@gmail.com>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Cc: Dr. Thomas Orgis <thomas.orgis@uni-hamburg.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Wang Yaxin <wang.yaxin@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "taskstats: fix TGID dead-thread stat retention", v3.
This series fixes a taskstats TGID aggregation bug where fields added in
the TGID query path were not preserved after thread exit, and adds a
kselftest covering the regression.
The first patch keeps the cached TGID aggregate used for dead threads in
step with the fields already accumulated for live threads, and also fixes
the final TGID exit notification emitted when group_dead is true.
The second patch adds a kselftest that verifies TGID CPU stats do not
regress after a worker thread exits and has been reaped.
This patch (of 2):
fill_stats_for_tgid() builds TGID stats from two sources: the cached
aggregate in signal->stats and a scan of the live threads in the group.
However, fill_tgid_exit() only accumulates delay accounting into
signal->stats. This means that once a thread exits, TGID queries lose the
fields that fill_stats_for_tgid() adds for live threads.
This gap was introduced incrementally by two earlier changes that extended
fill_stats_for_tgid() but did not make the corresponding update to
fill_tgid_exit():
- commit 8c733420bd ("taskstats: add e/u/stime for TGID command")
added ac_etime, ac_utime, and ac_stime to the TGID query path.
- commit b663a79c19 ("taskstats: add context-switch counters")
added nvcsw and nivcsw to the TGID query path.
As a result, those fields were accounted for live threads in TGID queries,
but were dropped from the cached TGID aggregate after thread exit. The
final TGID exit notification emitted when group_dead is true also copies
that cached aggregate, so it loses the same fields.
Factor the per-task TGID accumulation into tgid_stats_add_task() and use
it in both fill_stats_for_tgid() and fill_tgid_exit(). This keeps the
cached aggregate used for dead threads aligned with the live-thread
accumulation used by TGID queries.
Link: https://lore.kernel.org/cover.1776094300.git.cyyzero16@gmail.com
Link: https://lore.kernel.org/abd2a15d33343636ab5ba43d540bcfe508bd66c7.1776094300.git.cyyzero16@gmail.com
Fixes: 8c733420bd ("taskstats: add e/u/stime for TGID command")
Fixes: b663a79c19 ("taskstats: add context-switch counters")
Signed-off-by: Yiyang Chen <cyyzero16@gmail.com>
Acked-by: Balbir Singh <balbirs@nvidia.com>
Cc: Dr. Thomas Orgis <thomas.orgis@uni-hamburg.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Wang Yaxin <wang.yaxin@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Without this patch clang-format formats guard() and scoped_guard()
statements as follows:
guard(...)(...)
{
...
}
With this patch clang-format formats guard() and scoped_guard()
statements as follows:
guard(...)(...) {
...
}
Link: https://lore.kernel.org/20260413182348.1865138-1-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add KUnit coverage for fat_clus_to_blknr() and fat_get_blknr_offset()
using stub msdos_sb_info values so cluster-to-sector and i_pos split math
stays correct.
Link: https://lore.kernel.org/20260405011920.28622-1-adinata.softwareengineer@gmail.com
Signed-off-by: Adi Nata <adinata.softwareengineer@gmail.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
checkpatch did not allow function pointer arrays when testing
declaration blocks.
Add it.
Link: https://lore.kernel.org/eb62763085eb42193a611bca00a62d6f0ae72e1e.1776530118.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
ocfs2 quota recovery allocates a bitmap buffer with kmalloc and does not
fully initialize it. This can lead to use of uninitialized bits during
quota recovery from a corrupted filesystem image.
Use kzalloc instead to ensure the bitmap is zero-initialized.
Link: https://lore.kernel.org/20260418131048.1052507-1-tristmd@gmail.com
Reported-by: syzbot+7ea0b96c4ddb49fd1a70@syzkaller.appspotmail.com
Signed-off-by: Tristan Madani <tristan@talencesecurity.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Heming Zhao <heming.zhao@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reproduce with GCC 13.3.0:
$ cd tools/accounting
$ make
This emits:
getdelays.c: In function `format_timespec':
getdelays.c:218:67: warning: `:' directive output may be truncated writing 1 byte into a region of size between 0 and 16 [-Wformat-truncation=]
218 | snprintf(buffer, sizeof(buffer), "%04d-%02d-%02dT%02d:%02d:%02d",
|
getdelays.c:218:9: note: `snprintf' output between 20 and 72 bytes into a destination of size 32
The problem is that %04d and %02d specify minimum field widths only. GCC
cannot prove that formatting tm_year + 1900 and the other struct tm
fields will always fit in the fixed 32-byte buffer, so it warns about
possible truncation.
Fix this by replacing the manual snprintf() formatting with
strftime("%Y-%m-%dT%H:%M:%S", ...). That matches the data we already have
in struct tm, keeps the intended timestamp format, and avoids the warning
when building tools/accounting with GCC.
Link: https://lore.kernel.org/87d9723e0b59d816ee2e4bd7cddd58a54c6c9f91.1776956545.git.cyyzero16@gmail.com
Signed-off-by: Yiyang Chen <cyyzero16@gmail.com>
Cc: Fan Yu <fan.yu9@zte.com.cn>
Cc: Wang Yaxin <wang.yaxin@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Replace strlen(fn) with strnlen(fn, NAME_MAX + 1) when validating the
final path component in __proc_create().
This preserves the existing name limit while bounding the length scan to
one byte past the maximum name length. Handle empty names separately, and
treat names longer than NAME_MAX as too long.
Link: https://lore.kernel.org/20260421122648.56723-2-thorsten.blum@linux.dev
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Thorsten Blum <thorsten.blum@linux.dev>
Cc: wangzijie <wangzijie1@honor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add option --spdx-cxx-comments to not force C comments (/* */) for SPDX,
but allow also C++ comments (//).
As documented in aa19a176df, this is required for some old toolchains
still have older assembler tools which cannot handle C++ style comments.
This avoids forcing this for projects which vendored checkpatch.pl (e.g.
LTP or u-boot).
Link: https://lore.kernel.org/20260421211408.383972-2-pvorel@suse.cz
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
checkpatch.pl searches for .checkpatch.conf in $CWD, $HOME and
$CWD/.scripts. Allow passing a single directory via CHECKPATCH_CONFIG_DIR
environment variable (empty value is ignored). This allows to directly
use project configuration file for projects which vendored checkpatch.pl
(e.g. LTP or u-boot).
Although it'd be more convenient for user to have --conf-dir option
(instead of using environment variable), code would get ugly because
options from the configuration file needs to be read before processing
command line options with Getopt::Long.
While at it, document directories and environment variable in -h help
and HTML doc.
Link: https://lore.kernel.org/20260421211408.383972-1-pvorel@suse.cz
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* deduplicate "iter.tgid += 1" line,
Right now it is done once inside next_tgid() itself and second time
inside "for" loop.
* deduplicate next_tgid() call itself with different loop style:
auto it = make_tgid_iter();
while (next_tgid(&it)) {
...
}
gcc seems to inline it twice:
$ ./scripts/bloat-o-meter ../vmlinux-000 ../obj/vmlinux
add/remove: 0/1 grow/shrink: 1/0 up/down: 100/-245 (-145)
Function old new delta
proc_pid_readdir 531 631 +100
next_tgid 245 - -245
* make tgid_iter.pid_ns const
it never changes during readdir anyway
[akpm@linux-foundation.org: remove newline]
Link: https://lore.kernel.org/20260422191745.435556-2-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
next_tgid() accepts pid namespace as an argument, but it never changes
during readdir (which would be unthinkable thing to do anyway).
Move it inside iterator type and hide from direct usage.
Link: https://lore.kernel.org/20260422191745.435556-1-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
post-7.1 issues or aren't considered suitable for backporting.
All patches are singletons - please see the individual changelogs for
details.
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Merge tag 'mm-hotfixes-stable-2026-05-25-16-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"13 hotfixes. 9 are for MM. 9 are cc:stable and the remaining 4 address
post-7.1 issues or aren't considered suitable for backporting.
All patches are singletons - please see the individual changelogs for
details"
* tag 'mm-hotfixes-stable-2026-05-25-16-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
Revert "mm: introduce a new page type for page pool in page type"
mm/vmalloc: do not trigger BUG() on BH disabled context
MAINTAINERS, mailmap: change email for Eugen Hristev
mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page
kernel/fork: validate exit_signal in kernel_clone()
mm: memcontrol: propagate NMI slab stats to memcg vmstats
mm/damon/sysfs-schemes: delete tried region in regions_rmdirs()
mm/rmap: initialize nr_pages to 1 at loop start in try_to_unmap_one
zram: fix use-after-free in zram_writeback_endio
memfd: deny writeable mappings when implying SEAL_WRITE
ipc: limit next_id allocation to the valid ID range
Revert "mm/hugetlbfs: update hugetlbfs to use mmap_prepare"
MAINTAINERS: .mailmap: update after GEHC spin-off
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Merge tag 'for-7.1/hpfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull hpfs fix from Mikulas Patocka:
- Fix a crash on corrupted filesystem
* tag 'for-7.1/hpfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
hpfs: fix a crash if hpfs_map_dnode_bitmap fails
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Merge tag 'for-7.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mikulas Patocka:
- fix crashes in dm-vdo if GFP_NOWAIT allocation fails
* tag 'for-7.1/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm vdo: use GFP_NOIO for blkdev_issue_zeroout on format path
- tools/bootconfig: Fix buf leaks in apply_xbc
If data memory allocation failed, free the buf before return.
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Merge tag 'bootconfig-fixes-v7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig fix from Masami Hiramatsu:
- Fix buf leak in apply_xbc
* tag 'bootconfig-fixes-v7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tools/bootconfig: Fix buf leaks in apply_xbc
- Fix ITS EventID sanitisation when restoring an interrupt translation
table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info()
and pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by the page
table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on Hygon
Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM, return
the VM's configured APIC bus frequency instead of the default. This
is less confusing (read: not wrong) and makes it easier to fill in CPUID
information that communicates the APIC bus frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance and
broke building KVM selftests with musl.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"arm64:
- Fix ITS EventID sanitisation when restoring an interrupt
translation table.
- Fix PPI memory leak when failing to initialise a vcpu.
- Correctly return an error when the validation of a hypervisor trace
descriptor fails, and limit this validation to protected mode only.
RISC-V:
- Fix invalid HVA warning in steal-time recording
- Return SBI_ERR_FAILURE to guest upon OOM in pmu_event_info() and
pmu_snapshot_set_shmem()
- Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
- Fix sign extension of value for MMIO loads
s390:
- Fix bugs in vSIE (nested virtualization) and UCONTROL, caused by
the page table rewrite.
x86:
- Apply erratum #1235 workaround (disable AVIC IPI virtualization) on
Hygon Family 18h, just like on AMD Family 17h.
- When KVM_CAP_X86_APIC_BUS_CYCLES_NS is queried on a specific VM,
return the VM's configured APIC bus frequency instead of the
default. This is less confusing (read: not wrong) and makes it
easier to fill in CPUID information that communicates the APIC bus
frequency to the guest.
Selftests:
- Do not include glibc-internal <bits/endian.h>; it worked by chance
and broke building KVM selftests with musl"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Disable AVIC IPI virtualization on Hygon Family 18h (erratum #1235)
KVM: selftests: Verify that KVM returns the configured APIC cycle length
KVM: x86: Return the VM's configured APIC bus frequency when queried
KVM: selftests: elf: Include <endian.h> instead of <bits/endian.h>
KVM: s390: Properly reset zero bit in PGSTE
KVM: s390: vsie: Fix redundant rmap entries
KVM: s390: vsie: Fix unshadowing logic
KVM: s390: Fix leaking kvm_s390_mmu_cache in case of errors
KVM: s390: vsie: Fix memory leak when unshadowing
KVM: arm64: Fix nVHE/pKVM hyp tracing error on invalid desc
KVM: arm64: vgic: Free private_irqs when init fails after allocation
KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits
RISC-V: KVM: Fix sign extension for MMIO loads
RISC-V: KVM: Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler
riscv: kvm: return SBI_ERR_FAILURE for pmu_event_info() when OOM
riscv: kvm: return SBI_ERR_FAILURE for pmu_snapshot_set_shmem() when OOM
RISC-V: KVM: Fix invalid HVA warning in steal-time recording
- On SEV guests, handle set_memory_{encrypted,decrypted}()
failures more conservatively by assuming that all affected
pages are unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled
(Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression
(Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to
prepare for a KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure
(Guilherme Giacomo Simoes)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- On SEV guests, handle set_memory_{encrypted,decrypted}() failures
more conservatively by assuming that all affected pages are
unencrypted (Carlos López)
- Disable broadcast TLB flush when PCID is disabled (Tom Lendacky)
- Fix VMX vs. hrtimer_rearm_deferred() regression (Peter Zijlstra)
- Move IRQ/NMI dispatch code from KVM into x86 core, to prepare for a
KVM x2apic fix (Peter Zijlstra)
- Fix incorrect munmap() size on map_vdso() failure (Guilherme Giacomo
Simoes)
* tag 'x86-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt: sev-guest: Explicitly leak pages in unknown state
x86/mm: Disable broadcast TLB flush when PCID is disabled
x86/kvm/vmx: Fix VMX vs hrtimer_rearm_deferred()
x86/kvm/vmx: Move IRQ/NMI dispatch from KVM into x86 core
x86/vdso: Fix incorrect size in munmap() on map_vdso() failure
- Fix the hardware probing error path of the renesas-rzt2h
irqchip driver
- Fix the exynos-combiner irqchip driver on -rt kernels
by turning the IRQ controller spinlock into a raw spinlock
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irqchip driver fixes from Ingo Molnar:
- Fix the hardware probing error path of the renesas-rzt2h
irqchip driver
- Fix the exynos-combiner irqchip driver on -rt kernels
by turning the IRQ controller spinlock into a raw spinlock
* tag 'irq-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/renesas-rzt2h: Use pm_runtime_put_sync() in probe error path
irqchip/exynos-combiner: Switch to raw_spinlock
- Fix debugobjects regression on -rt kernels: don't fill the
pool (which uses a coarse lock) if ->pi_blocked_on, because
that messes up the priority inheritance of callers.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects fix from Ingo Molnar::
- Fix debugobjects regression on -rt kernels: don't fill the pool
(which uses a coarse lock) if ->pi_blocked_on, because that messes up
the priority inheritance of callers
* tag 'core-urgent-2026-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Do not fill_pool() if pi_blocked_on
- adm1266: Various fixes from Abdurrahman Hussain
The fixed issues were reported by Sashiko as part of a code review of a
functional change in the driver.
- lenovo-ec-sensors: Convert to devm_request_region() to fix release_region
cleanup, and fix EC "MCHP" signature validation logic, from Kean Ren
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Merge tag 'hwmon-for-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- adm1266: Various fixes from Abdurrahman Hussain
The fixed issues were reported by Sashiko as part of a code review of
a functional change in the driver.
- lenovo-ec-sensors: Convert to devm_request_region() to fix
release_region cleanup, and fix EC "MCHP" signature validation logic,
from Kean Ren
* tag 'hwmon-for-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (pmbus/adm1266) serialize sequencer_state debugfs read with pmbus_lock
hwmon: (pmbus/adm1266) serialize NVMEM blackbox read with pmbus_lock
hwmon: (pmbus/adm1266) serialize GPIO PMBus accesses with pmbus_lock
hwmon: (pmbus/adm1266) register the nvmem device after pmbus_do_probe()
hwmon: (pmbus/adm1266) register the gpio_chip after pmbus_do_probe()
hwmon: (pmbus/adm1266) reject short block-read responses in the GPIO accessors
hwmon: (pmbus/adm1266) don't clobber GPIO bits before PDIO read in get_multiple
hwmon: (pmbus/adm1266) cap PDIO scan in get_multiple at ADM1266_PDIO_NR
hwmon: (pmbus/adm1266) bounce blackbox records through a protocol-sized buffer
hwmon: (pmbus/adm1266) include adapter number in GPIO line label
hwmon: (pmbus/adm1266) include PEC byte in pmbus_block_xfer read buffer
hwmon: (pmbus/adm1266) reject implausible blackbox record_count
hwmon: (pmbus/adm1266) widen blackbox-info buffer to I2C_SMBUS_BLOCK_MAX
hwmon: (pmbus/adm1266) seed timestamp from the real-time clock
hwmon: (lenovo-ec-sensors): Fix EC "MCHP" signature validation logic
hwmon: (lenovo-ec-sensors): Convert to devm_request_region()
After commit 3392291fc5 ("drm/msm: Fix shrinker deadlock"), all
supported versions of clang warn (or error with CONFIG_WERROR=y):
drivers/gpu/drm/msm/msm_gem_shrinker.c:105:58: error: omitting the parameter name in a function definition is a C23 extension [-Werror,-Wc23-extensions]
105 | purge(struct drm_gem_object *obj, struct ww_acquire_ctx *)
| ^
drivers/gpu/drm/msm/msm_gem_shrinker.c:117:58: error: omitting the parameter name in a function definition is a C23 extension [-Werror,-Wc23-extensions]
117 | evict(struct drm_gem_object *obj, struct ww_acquire_ctx *)
| ^
2 errors generated.
With older but supported versions of GCC, this is an unconditional hard error:
drivers/gpu/drm/msm/msm_gem_shrinker.c: In function 'purge':
drivers/gpu/drm/msm/msm_gem_shrinker.c:105:35: error: parameter name omitted
purge(struct drm_gem_object *obj, struct ww_acquire_ctx *)
^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/msm_gem_shrinker.c: In function 'evict':
drivers/gpu/drm/msm/msm_gem_shrinker.c:117:35: error: parameter name omitted
evict(struct drm_gem_object *obj, struct ww_acquire_ctx *)
^~~~~~~~~~~~~~~~~~~~~~~
Restore the parameter name to clear up the warnings, renaming it
"unused" to make it clear it is only needed to satisfy the prototype of
drm_gem_lru_scan().
Cc: stable@vger.kernel.org
Fixes: 3392291fc5 ("drm/msm: Fix shrinker deadlock")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'for-7.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A batch of fixes to simple quotas:
- add conditional rescheduling point not dependent on the lock during
inode iterations to avoid delays with PREEMPT_NONE enabled
- fix subvolume deletion so it does not break the squota invariants
- properly handle enabling squota, tracking extents in the initial
transaction
- catch and warn about underflows, clamp to zero to avoid further
problems
And one fix to inode size handling:
- fix handling of preallocated extents beyond i_size when not using
the no-holes feature"
* tag 'for-7.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: swallow btrfs_record_squota_delta() ENOENT
btrfs: clamp to avoid squota underflow
btrfs: fix squota accounting during enable generation
btrfs: check for subvolume before deleting squota qgroup
btrfs: always drop root->inodes lock before cond_resched()
btrfs: mark file extent range dirty after converting prealloc extents
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Carlos Maiolino:
"A single fix for a race in xfs buffer cache which may lead to
filesystem shutdown due to inconsistent metadata if the buffer
lookup happens to find an old dead buffer still in the cache"
* tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix a buffer lookup against removal race
- Implement _THIS_IP_ for inline asm
- Add Simon Schuster as a maintainer and mark the NIOS2 as Supported
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Merge tag 'nios2_updates_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux
Pull nios2 fixes from Dinh Nguyen:
- Implement _THIS_IP_ for inline asm
- Add Simon Schuster as a maintainer and mark the NIOS2 as Supported
* tag 'nios2_updates_for_v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
nios2: Implement _THIS_IP_ using inline asm
MAINTAINERS: arch/nios2: Add Simon Schuster as co-maintainer
The offset for the cleanup-label jump is computed before the MOV R7
instruction is emitted, but the JMP lands after it. Account for the
extra insn in the offset calculation (-2 instead of -1). Drop the
redundant self-loop in the else branch; gen->error = -ERANGE already
marks the generation as failed.
Fixes: fb2b0e2901 ("libbpf: Update light skeleton for signing")
Signed-off-by: KP Singh <kpsingh@kernel.org>
Link: https://lore.kernel.org/r/20260522215337.662271-2-kpsingh@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
- Remove the software node on platform device release(); without this,
the software node remains registered after the device is gone and a
subsequent platform_device_register_full() reusing the same node fails
with -EBUSY
- In sysfs_update_group(), do not remove a pre-existing directory when
create_files() fails; the previous code would silently destroy a sysfs
group that the caller did not create
- Set fwnode->secondary to NULL in fwnode_init() to avoid dereferencing
uninitialized memory (e.g. in dev_to_swnode()) when the firmware node
is allocated on the stack or via a non-zeroing allocator
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Merge tag 'driver-core-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Remove the software node on platform device release(); without this,
the software node remains registered after the device is gone and a
subsequent platform_device_register_full() reusing the same node
fails with -EBUSY
- In sysfs_update_group(), do not remove a pre-existing directory when
create_files() fails; the previous code would silently destroy a
sysfs group that the caller did not create
- Set fwnode->secondary to NULL in fwnode_init() to avoid dereferencing
uninitialized memory (e.g. in dev_to_swnode()) when the firmware node
is allocated on the stack or via a non-zeroing allocator
* tag 'driver-core-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
device property: set fwnode->secondary to NULL in fwnode_init()
sysfs: don't remove existing directory on update failure
driver core: platform: remove software node on release()
- syzbot triggred crash in rxe due to concurrent plug/unplug
- Possible non-zero'd memory exposed to userspace in bnxt_re
- Malicous 'magic packet' with SIW causes a buffer overflow
- Tighten the new uAPI validation code to not crash in debugging prints
and have the right module dependencies in drivers
- mana was missing the max_msg_sz report to userspace
- UAF in rtrs on an error path
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
- syzbot triggred crash in rxe due to concurrent plug/unplug
- Possible non-zero'd memory exposed to userspace in bnxt_re
- Malicous 'magic packet' with SIW causes a buffer overflow
- Tighten the new uAPI validation code to not crash in debugging prints
and have the right module dependencies in drivers
- mana was missing the max_msg_sz report to userspace
- UAF in rtrs on an error path
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/rtrs: Fix use-after-free in path file creation cleanup
RDMA/mana_ib: Report max_msg_sz in mana_ib_query_port
RDMA/core: Do not read wild stack memory in uverbs_get_handler_fn()
RDMA/core: Move the _ib_copy_validate_udata* functions to ib_core_uverbs
RDMA/siw: Reject MPA FPDU length underflow before signed receive math
RDMA/bnxt_re: zero shared page before exposing to userspace
selftests/rdma: explicitly skip tests when required modules are missing
RDMA/nldev: Add mutual exclusion in nldev_dellink()
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-7.1-rc5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux into test_merge
xfs: fixes for v7.1-rc5
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Lines starting with '#' will be ignored.
