Add a new test file bridge_vlan_dump.sh with four test cases that verify
VLANs with different per-VLAN options are not incorrectly grouped into
ranges in the dump output.
The tests verify the kernel's br_vlan_opts_eq_range() function correctly
prevents VLAN range grouping when neigh_suppress, mcast_max_groups,
mcast_n_groups, or mcast_enabled options differ.
Each test verifies that VLANs with different option values appear as
individual entries rather than ranges, and that VLANs with matching
values are properly grouped together.
Example output:
$ ./bridge_vlan_dump.sh
TEST: VLAN range grouping with neigh_suppress [ OK ]
TEST: VLAN range grouping with mcast_max_groups [ OK ]
TEST: VLAN range grouping with mcast_n_groups [ OK ]
TEST: VLAN range grouping with mcast_enabled [ OK ]
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20260225143956.3995415-3-danieller@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The br_vlan_opts_eq_range() function determines if consecutive VLANs can
be grouped together in a range for compact netlink notifications. It
currently checks state, tunnel info, and multicast router configuration,
but misses two categories of per-VLAN options that affect the output:
1. User-visible priv_flags (neigh_suppress, mcast_enabled)
2. Port multicast context (mcast_max_groups, mcast_n_groups)
When VLANs have different settings for these options, they are incorrectly
grouped into ranges, causing netlink notifications to report only one
VLAN's settings for the entire range.
Fix by checking priv_flags equality, but only for flags that affect netlink
output (BR_VLFLAG_NEIGH_SUPPRESS_ENABLED and BR_VLFLAG_MCAST_ENABLED),
and comparing multicast context (mcast_max_groups and mcast_n_groups).
Example showing the bugs before the fix:
$ bridge vlan set vid 10 dev dummy1 neigh_suppress on
$ bridge vlan set vid 11 dev dummy1 neigh_suppress off
$ bridge -d vlan show dev dummy1
port vlan-id
dummy1 10-11
... neigh_suppress on
$ bridge vlan set vid 10 dev dummy1 mcast_max_groups 100
$ bridge vlan set vid 11 dev dummy1 mcast_max_groups 200
$ bridge -d vlan show dev dummy1
port vlan-id
dummy1 10-11
... mcast_max_groups 100
After the fix, VLANs 10 and 11 are shown as separate entries with their
correct individual settings.
Fixes: a1aee20d5d ("net: bridge: Add netlink knobs for number / maximum MDB entries")
Fixes: 83f6d60079 ("bridge: vlan: Allow setting VLAN neighbor suppression state")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260225143956.3995415-2-danieller@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When debug logging is enabled, cifs_set_cifscreds() logs the key
payload and exposes the plaintext username and password. Remove the
debug log to avoid exposing credentials.
Fixes: 8a8798a5ff ("cifs: fetch credentials out of keyring for non-krb5 auth multiuser mounts")
Cc: stable@vger.kernel.org
Acked-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Steve French <stfrench@microsoft.com>
When mounting a share with 'multichannel,max_channels=n,sec=krb5i',
the client was duplicating signing key for all secondary channels,
thus making the server fail all commands sent from secondary channels
due to bad signatures.
Every channel has its own signing key, so when establishing a new
channel with krb5 auth, make sure to use the new session key as the
derived key to generate channel's signing key in SMB2_auth_kerberos().
Repro:
$ mount.cifs //srv/share /mnt -o multichannel,max_channels=4,sec=krb5i
$ sleep 5
$ umount /mnt
$ dmesg
...
CIFS: VFS: sign fail cmd 0x5 message id 0x2
CIFS: VFS: \\srv SMB signature verification returned error = -13
CIFS: VFS: sign fail cmd 0x5 message id 0x2
CIFS: VFS: \\srv SMB signature verification returned error = -13
CIFS: VFS: sign fail cmd 0x4 message id 0x2
CIFS: VFS: \\srv SMB signature verification returned error = -13
Reported-by: Xiaoli Feng <xifeng@redhat.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Use atomic_t for cifs_sb_info::mnt_cifs_flags as it's currently
accessed locklessly and may be changed concurrently in mount/remount
and reconnect paths.
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
All are singletons - please see the changelogs for details.
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Merge tag 'mm-hotfixes-stable-2026-02-26-14-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"12 hotfixes. 7 are cc:stable. 8 are for MM.
All are singletons - please see the changelogs for details"
* tag 'mm-hotfixes-stable-2026-02-26-14-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
MAINTAINERS: update Yosry Ahmed's email address
mailmap: add entry for Daniele Alessandrelli
mm: fix NULL NODE_DATA dereference for memoryless nodes on boot
mm/tracing: rss_stat: ensure curr is false from kthread context
mm/kfence: fix KASAN hardware tag faults during late enablement
mm/damon/core: disallow non-power of two min_region_sz
Squashfs: check metadata block offset is within range
MAINTAINERS, mailmap: update e-mail address for Vlastimil Babka
liveupdate: luo_file: remember retrieve() status
mm: thp: deny THP for files on anonymous inodes
mm: change vma_alloc_folio_noprof() macro to inline function
mm/kfence: disable KFENCE upon KASAN HW tags enablement
A set of two fixes for DMA-mapping subsystem for the recently merged API
rework (Jiri Pirko and Stian Halseth).
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Merge tag 'dma-mapping-7.0-2026-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
Pull dma-mapping fixes from Marek Szyprowski:
"Two DMA-mapping fixes for the recently merged API rework (Jiri Pirko
and Stian Halseth)"
* tag 'dma-mapping-7.0-2026-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
sparc: Fix page alignment in dma mapping
dma-mapping: avoid random addr value print out on error path
Commit c4f2c05ab0 ("spi: stm32: fix pointer-to-pointer variables usage")
introduced a regression since dma descriptors generated as part of the
stm32_spi_prepare_rx_dma_mdma_chaining function are not well propagated
to the caller function, leading to mdma-dma chaining being no more
functional.
Fixes: c4f2c05ab0 ("spi: stm32: fix pointer-to-pointer variables usage")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Acked-by: Antonio Quartulli <antonio@mandelbit.com>
Link: https://patch.msgid.link/20260224-spi-stm32-chaining-fix-v1-1-5da7a4851b66@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
- Add a quirk for Lenovo G70-35 to save the ACPI NVS memory on system
suspend (Piotr Mazek)
- Add a DMI quirk for Acer Aspire One D255 to work around a backlight
issue by returning false to _OSI("Windows 2009") (Sofia Schneider)
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Merge tag 'acpi-7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"New platform quirks for two systems:
- Add a quirk for Lenovo G70-35 to save the ACPI NVS memory on system
suspend (Piotr Mazek)
- Add a DMI quirk for Acer Aspire One D255 to work around a backlight
issue by returning false to _OSI("Windows 2009") (Sofia Schneider)"
* tag 'acpi-7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: OSI: Add DMI quirk for Acer Aspire One D255
ACPI: PM: Save NVS memory on Lenovo G70-35
When code had been changed to use for_each_set_clump8(), it mistakenly
switched from chip->nport to chip->tpin since the cy8c9540 and cy8c9560
have a 4-pin gap. This, in particular, led to the missed read of
the last bank interrupt status register and hence missing interrupts
on those pins. Restore the upper limit in for_each_set_clump8() to take
into consideration that gap.
Fixes: 83e29a7a1f ("pinctrl: cy8c95x0; Switch to use for_each_set_clump8()")
Cc: stable@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
- Fix two issues in the intel_pstate driver causing it to crash when
its sysfs interface is used on a system with some offline CPUs (David
Arcari, Srinivas Pandruvada)
- Update the last user of the pm_runtime_put() return value to discard
it and turn pm_runtime_put() into a void function (Rafael Wysocki)
- Update Daniel Lezcano's contact information in MAINTAINERS and
.mailmap (Daniel Lezcano)
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Merge tag 'pm-7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two intel_pstate driver issues causing it to crash on sysfs
attribute accesses when some CPUs in the system are offline, finalize
changes related to turning pm_runtime_put() into a void function, and
update Daniel Lezcano's contact information:
- Fix two issues in the intel_pstate driver causing it to crash when
its sysfs interface is used on a system with some offline CPUs
(David Arcari, Srinivas Pandruvada)
- Update the last user of the pm_runtime_put() return value to
discard it and turn pm_runtime_put() into a void function (Rafael
Wysocki)
- Update Daniel Lezcano's contact information in MAINTAINERS and
.mailmap (Daniel Lezcano)"
* tag 'pm-7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
MAINTAINERS: Update contact with the kernel.org address
cpufreq: intel_pstate: Fix crash during turbo disable
cpufreq: intel_pstate: Fix NULL pointer dereference in update_cpu_qos_request()
PM: runtime: Change pm_runtime_put() return type to void
pmdomain: imx: gpcv2: Discard pm_runtime_put() return value
In nvme_fc_handle_ls_rqst_work, the lsrsp->done callback is only set when
remoteport->port_state is FC_OBJSTATE_ONLINE. Otherwise, the
nvme_fc_xmt_ls_rsp's LLDD call to lport->ops->xmt_ls_rsp is expected to
fail and the nvme-fc transport layer itself will directly call
nvme_fc_xmt_ls_rsp_free instead of relying on LLDD's done callback to free
the lsrsp resources.
Update the fcloop_t2h_xmt_ls_rsp routine to check remoteport->port_state.
If online, then lsrsp->done callback will free the lsrsp. Else, return
-ENODEV to signal the nvme-fc transport to handle freeing lsrsp.
Cc: Ewan D. Milne <emilne@redhat.com>
Tested-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Closes: https://lore.kernel.org/linux-nvme/21255200-a271-4fa0-b099-97755c8acd4c@work/
Fixes: 10c165af35 ("nvmet-fcloop: call done callback even when remote port is gone")
Signed-off-by: Justin Tee <justintee8345@gmail.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
I apologise for this being late, I wanted to leave it in the next tree
for a while, and the work I did came in late, but I really don't want to
ship 7.0 with these issues. It's been in the next tree since Feb 13,
and I had to rebase on Feb 23 to add a missed review and to fold in a
fix that didn't make sense by itself.
This mostly revolves around getting the driver to behave when the IPMI
device misbehaves. Past attempts have not worked very well because I
didn't have hardware I couldmake do this, and AI was fairly useless for
help on this.
So I modified qemu and my test suite so I could reproduce a misbehaving
IPMI device, and with that I was able to fix the issues.
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Merge tag 'for-linus-7.0-1' of https://github.com/cminyard/linux-ipmi
Pull IPMI driver fixes from Corey Minyard:
"This mostly revolves around getting the driver to behave when the IPMI
device misbehaves. Past attempts have not worked very well because I
didn't have hardware I could make do this, and AI was fairly useless
for help on this.
So I modified qemu and my test suite so I could reproduce a
misbehaving IPMI device, and with that I was able to fix the issues"
* tag 'for-linus-7.0-1' of https://github.com/cminyard/linux-ipmi:
ipmi:si: Fix check for a misbehaving BMC
ipmi:msghandler: Handle error returns from the SMI sender
ipmi:si: Don't block module unload if the BMC is messed up
ipmi:si: Use a long timeout when the BMC is misbehaving
ipmi:si: Handle waiting messages when BMC failure detected
ipmi:ls2k: Make ipmi_ls2k_platform_driver static
ipmi: ipmb: initialise event handler read bytes
ipmi: Consolidate the run to completion checking for xmit msgs lock
ipmi: Fix use-after-free and list corruption on sender error
SCX_EFLAG_INITIALIZED is the sole member of enum scx_exit_flags with no
explicit value, so the compiler assigns it 0. This makes the bitwise OR
in scx_ops_init() a no-op:
sch->exit_info->flags |= SCX_EFLAG_INITIALIZED; /* |= 0 */
As a result, BPF schedulers cannot distinguish whether ops.init()
completed successfully by inspecting exit_info->flags.
Assign the value 1LLU << 0 so the flag is actually set.
Fixes: f3aec2adce ("sched_ext: Add SCX_EFLAG_INITIALIZED to indicate successful ops.init()")
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
When CONFIG_DEBUG_INFO_BTF_MODULES is enabled and vmlinux is available,
Makefile.modfinal and gen-btf.sh will try to use resolve_btfids on the
module .ko. install-extmod-build currently does not package
resolve_btfids, so that step fails.
Package resolve_btfids if it may be used.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Link: https://patch.msgid.link/20260226-kbuild-resolve_btfids-v1-1-2bf38b93dfe7@linutronix.de
[nathan: Small commit message tweaks]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Merge cpufreq and runtime PM updates for 7.0-rc2:
- Fix two issues in the intel_pstate driver causing it to crash when
its sysfs interface is used on a system with some offline CPUs (David
Arcari, Srinivas Pandruvada)
- Update the last user of the pm_runtime_put() return value to discard
it and turn pm_runtime_put() into a void function (Rafael Wysocki)
* pm-cpufreq:
cpufreq: intel_pstate: Fix crash during turbo disable
cpufreq: intel_pstate: Fix NULL pointer dereference in update_cpu_qos_request()
* pm-runtime:
PM: runtime: Change pm_runtime_put() return type to void
pmdomain: imx: gpcv2: Discard pm_runtime_put() return value
- amdxdna: Fix for a deadlock, a NULL pointer dereference, a suspend
failure, a hang, an out-of-bounds access, a buffer overflow, input
sanitization and other minor fixes.
- dw-dp: An error handling fix
- ethosu: A binary shift overflow fix
- imx: An error handling fix
- logicvc: A dt node reference leak fix
- nouveau: A WARN_ON removal
- samsung-dsim: A memory leak fix
- sharp-memory: A NULL pointer dereference fix
- vmgfx: A reference count and error handling fix
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Merge tag 'drm-misc-fixes-2026-02-26' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Several fixes for:
- amdxdna: Fix for a deadlock, a NULL pointer dereference, a suspend
failure, a hang, an out-of-bounds access, a buffer overflow, input
sanitization and other minor fixes.
- dw-dp: An error handling fix
- ethosu: A binary shift overflow fix
- imx: An error handling fix
- logicvc: A dt node reference leak fix
- nouveau: A WARN_ON removal
- samsung-dsim: A memory leak fix
- sharp-memory: A NULL pointer dereference fix
- vmgfx: A reference count and error handling fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260226-heretic-stimulating-swine-6a2f27@penduick
- Fix#7153: Panel Replay stuck with X during mode transitions on Panther Lake
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patch.msgid.link/aZ8JxQkN5oMxXsT6@jlahtine-mobl
Dmabuf name allocations can be less than DMA_BUF_NAME_LEN characters,
but bpf_probe_read_kernel always tries to read exactly that many bytes.
If a name is less than DMA_BUF_NAME_LEN characters,
bpf_probe_read_kernel will read past the end. bpf_probe_read_kernel_str
stops at the first NUL terminator so use it instead, like
iter_dmabuf_for_each already does.
Fixes: ae5d2c59ec ("selftests/bpf: Add test for dmabuf_iter")
Reported-by: Jerome Lee <jaewookl@quicinc.com>
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Link: https://lore.kernel.org/r/20260225003349.113746-1-tjmercier@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
get_upper_ifindexes() iterates over all upper devices and writes their
indices into an array without checking bounds.
Also the callers assume that the max number of upper devices is
MAX_NEST_DEV and allocate excluded_devices[1+MAX_NEST_DEV] on the stack,
but that assumption is not correct and the number of upper devices could
be larger than MAX_NEST_DEV (e.g., many macvlans), causing a
stack-out-of-bounds write.
Add a max parameter to get_upper_ifindexes() to avoid the issue.
When there are too many upper devices, return -EOVERFLOW and abort the
redirect.
To reproduce, create more than MAX_NEST_DEV(8) macvlans on a device with
an XDP program attached using BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS.
Then send a packet to the device to trigger the XDP redirect path.
Reported-by: syzbot+10cc7f13760b31bd2e61@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/698c4ce3.050a0220.340abe.000b.GAE@google.com/T/
Fixes: aeea1b86f9 ("bpf, devmap: Exclude XDP broadcast to master device")
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Link: https://lore.kernel.org/r/20260225053506.4738-1-kohei@enjuk.jp
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
struct bpf_plt contains a u64 target field. Currently, the BPF JIT
allocator requests an alignment of 4 bytes (sizeof(u32)) for the JIT
buffer.
Because the base address of the JIT buffer can be 4-byte aligned (e.g.,
ending in 0x4 or 0xc), the relative padding logic in build_plt() fails
to ensure that target lands on an 8-byte boundary.
This leads to two issues:
1. UBSAN reports misaligned-access warnings when dereferencing the
structure.
2. More critically, target is updated concurrently via WRITE_ONCE() in
bpf_arch_text_poke() while the JIT'd code executes ldr. On arm64,
64-bit loads/stores are only guaranteed to be single-copy atomic if
they are 64-bit aligned. A misaligned target risks a torn read,
causing the JIT to jump to a corrupted address.
Fix this by increasing the allocation alignment requirement to 8 bytes
(sizeof(u64)) in bpf_jit_binary_pack_alloc(). This anchors the base of
the JIT buffer to an 8-byte boundary, allowing the relative padding math
in build_plt() to correctly align the target field.
Fixes: b2ad54e153 ("bpf, arm64: Implement bpf_arch_text_poke() for arm64")
Signed-off-by: Fuad Tabba <tabba@google.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20260226075525.233321-1-tabba@google.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
After commit 07919126ec ("netfilter: annotate NAT helper hook pointers
with __rcu"), genksyms fails to parse the __rcu annotation when building
with CONFIG_DEBUG_INFO_BTF=y, CONFIG_PAHOLE_HAS_BTF_TAG=y, and a version
of clang that supports btf_type_tag.
$ clang --version | head -1
ClangBuiltLinux clang version 22.1.0 (https://github.com/llvm/llvm-project.git 4434dabb69916856b824f68a64b029c67175e532)
$ cat kernel/configs/repro.config
CONFIG_BPF_SYSCALL=y
CONFIG_MODVERSIONS=y
# CONFIG_DEBUG_INFO_NONE is not set
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
CONFIG_DEBUG_INFO_BTF=y
$ make -skj"$(nproc)" ARCH=x86_64 LLVM=1 mrproper defconfig repro.config all
WARNING: modpost: EXPORT symbol "nf_nat_ftp_hook" [vmlinux] version generation failed, symbol will not be versioned.
...
WARNING: modpost: EXPORT symbol "nf_nat_irc_hook" [vmlinux] version generation failed, symbol will not be versioned.
...
genksyms falls over parsing the __rcu attribute in the declarator:
# Kernel reproducer
$ make -skj"$(nproc)" ARCH=x86_64 KCFLAGS=-D__GENKSYMS__ LLVM=1 net/netfilter/nf_conntrack_ftp.i
$ scripts/genksyms/genksyms -w <net/netfilter/nf_conntrack_ftp.i &| rg 'syntax error'
include/linux/netfilter/nf_conntrack_ftp.h:29: syntax error
net/netfilter/nf_conntrack_ftp.c:46: syntax error
# Trivial reproducer
$ cat test.c
int (*func)(void *foo, int bar);
int (__attribute__((btf_type_tag("rcu"))) *func_with_attr)(void *foo, int bar);
$ scripts/genksyms/genksyms -w <test.c
<stdin>:2: syntax error
Optionally allow an attribute to precede a declarator to resolve this
error and properly generate symbol versions.
Fixes: 07919126ec ("netfilter: annotate NAT helper hook pointers with __rcu")
Link: https://patch.msgid.link/20260225-genksyms-fix-attribute-declarator-v1-1-1b21478663fb@kernel.org
Tested-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Commit 3e86e4d74c ("kbuild: keep .modinfo section in
vmlinux.unstripped") added .modinfo to ELF_DETAILS while removing it
from COMMON_DISCARDS, as it was needed in vmlinux.unstripped and
ELF_DETAILS was present in all architecture specific vmlinux linker
scripts. While this shuffle is fine for vmlinux, ELF_DETAILS and
COMMON_DISCARDS may be used by other linker scripts, such as the s390
and x86 compressed boot images, which may not expect to have a .modinfo
section. In certain circumstances, this could result in a bootloader
failing to load the compressed kernel [1].
Commit ddc6cbef3e ("s390/boot/vmlinux.lds.S: Ensure bzImage ends with
SecureBoot trailer") recently addressed this for the s390 bzImage but
the same bug remains for arm, parisc, and x86. The presence of .modinfo
in the x86 bzImage was the root cause of the issue worked around with
commit d50f210913 ("kbuild: align modinfo section for Secureboot
Authenticode EDK2 compat"). misc.c in arch/x86/boot/compressed includes
lib/decompress_unzstd.c, which in turn includes lib/xxhash.c and its
MODULE_LICENSE / MODULE_DESCRIPTION macros due to the STATIC definition.
Split .modinfo out from ELF_DETAILS into its own macro and handle it in
all vmlinux linker scripts. Discard .modinfo in the places where it was
previously being discarded from being in COMMON_DISCARDS, as it has
never been necessary in those uses.
Cc: stable@vger.kernel.org
Fixes: 3e86e4d74c ("kbuild: keep .modinfo section in vmlinux.unstripped")
Reported-by: Ed W <lists@wildgooses.com>
Closes: https://lore.kernel.org/587f25e0-a80e-46a5-9f01-87cb40cfa377@wildgooses.com/ [1]
Tested-by: Ed W <lists@wildgooses.com> # x86_64
Link: https://patch.msgid.link/20260225-separate-modinfo-from-elf-details-v1-1-387ced6baf4b@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
The counters_read_on_cpu() function warns when called with IRQs
disabled to prevent deadlock in smp_call_function_single(). However,
this warning is spurious when reading counters on the current CPU,
since no IPI is needed for same CPU reads.
Commit 12eb8f4fff24 ("cpufreq: CPPC: Update FIE arch_freq_scale in
ticks for non-PCC regs") changed the CPPC Frequency Invariance Engine
to read AMU counters directly from the scheduler tick for non-PCC
register spaces (like FFH), instead of deferring to a kthread. This
means counters_read_on_cpu() is now called with IRQs disabled from the
tick handler, triggering the warning.
Fix this by restructuring the logic: when IRQs are disabled (tick
context), call the function directly for same-CPU reads. Otherwise
use smp_call_function_single().
Fixes: 997c021abc ("cpufreq: CPPC: Update FIE arch_freq_scale in ticks for non-PCC regs")
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Will Deacon <will@kernel.org>
Ben reports that when running with CONFIG_DEBUG_PREEMPT, using
__arch_counter_get_cntvct_stable() results in well deserves warnings,
as we access a per-CPU variable without preemption disabled.
Fix the issue by disabling preemption on reading the counter. We can
probably do a lot better by not disabling preemption on systems that
do not require horrible workarounds to return a valid counter value,
but this plugs the issue for the time being.
Fixes: 29cc0f3aa7 ("arm64: Force the use of CNTVCT_EL0 in __delay()")
Reported-by: Ben Horgan <ben.horgan@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/aZw3EGs4rbQvbAzV@e134344.arm.com
Tested-by: Ben Horgan <ben.horgan@arm.com>
Tested-by: André Draszik <andre.draszik@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
- Fix pointer-to-array allocation types for ubd and kcsan
- Force size overflow helpers to __always_inline
- Bump __builtin_counted_by_ref to Clang 22.1 from 22.0 (Nathan Chancellor)
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Merge tag 'kmalloc_obj-v7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kmalloc_obj fixes from Kees Cook:
- Fix pointer-to-array allocation types for ubd and kcsan
- Force size overflow helpers to __always_inline
- Bump __builtin_counted_by_ref to Clang 22.1 from 22.0 (Nathan Chancellor)
* tag 'kmalloc_obj-v7.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
kcsan: test: Adjust "expect" allocation type for kmalloc_obj
overflow: Make sure size helpers are always inlined
init/Kconfig: Adjust fixed clang version for __builtin_counted_by_ref
ubd: Use pointer-to-pointers for io_thread_req arrays
The call to kmalloc_obj(observed.lines) returns "char (*)[3][512]",
a pointer to the whole 2D array. But "expect" wants to be "char (*)[512]",
the decayed pointer type, as if it were observed.lines itself (though
without the "3" bounds). This produces the following build error:
../kernel/kcsan/kcsan_test.c: In function '__report_matches':
../kernel/kcsan/kcsan_test.c:171:16: error: assignment to 'char (*)[512]' from incompatible pointer type 'char (*)[3][512]'
[-Wincompatible-pointer-types]
171 | expect = kmalloc_obj(observed.lines);
| ^
Instead of changing the "expect" type to "char (*)[3][512]" and
requiring a dereference at each use (e.g. "(expect*)[0]"), just
explicitly cast the return to the desired type.
Note that I'm intentionally not switching back to byte-based "kmalloc"
here because I cannot find a way for the Coccinelle script (which will
be used going forward to catch future conversions) to exclude this case.
Tested with:
$ ./tools/testing/kunit/kunit.py run \
--kconfig_add CONFIG_DEBUG_KERNEL=y \
--kconfig_add CONFIG_KCSAN=y \
--kconfig_add CONFIG_KCSAN_KUNIT_TEST=y \
--arch=x86_64 --qemu_args '-smp 2' kcsan
Reported-by: Nathan Chancellor <nathan@kernel.org>
Fixes: 69050f8d6d ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types")
Signed-off-by: Kees Cook <kees@kernel.org>
The kernel-doc comments for sdca_irq_request() contained some typos
that lead to build warnings with W=1. Let's correct them.
Fixes: b126394d9e ("ASoC: SDCA: Generic interrupt support")
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260226154753.1083320-1-tiwai@suse.de
Seems bigger than usual, a number of things were posted near/during the
merg window:
- Fix some compilation regressions related to the new DMABUF code
- Close a race with ib_register_device() vs netdev events that causes
GID table corruption
- Compilation warnings with some compilers in bng_re
- Correct error unwind in bng_re and the umem pinned dmabuf
- Avoid NULL pointer crash in ionic during query_port()
- Check the size for uAPI validation checks in EFA
- Several system call stack leaks in drivers found with AI
- Fix the new restricted_node_type so it works with wildcard listens too
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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:
"Seems bigger than usual, a number of things were posted near/during
the merg window:
- Fix some compilation regressions related to the new DMABUF code
- Close a race with ib_register_device() vs netdev events that causes
GID table corruption
- Compilation warnings with some compilers in bng_re
- Correct error unwind in bng_re and the umem pinned dmabuf
- Avoid NULL pointer crash in ionic during query_port()
- Check the size for uAPI validation checks in EFA
- Several system call stack leaks in drivers found with AI
- Fix the new restricted_node_type so it works with wildcard listens
too"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/uverbs: Import DMA-BUF module in uverbs_std_types_dmabuf file
RDMA/umem: Fix double dma_buf_unpin in failure path
RDMA/core: Check id_priv->restricted_node_type in cma_listen_on_dev()
RDMA/ionic: Fix kernel stack leak in ionic_create_cq()
RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()
IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()
RDMA/efa: Fix typo in efa_alloc_mr()
RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port
RDMA/bng_re: Unwind bng_re_dev_init properly
RDMA/bng_re: Remove unnessary validity checks
RDMA/core: Fix stale RoCE GIDs during netdev events at registration
RDMA/uverbs: select CONFIG_DMA_SHARED_BUFFER
The implementation of ksize() was updated with kernel-doc by commit
fab0694646 ("mm/slab: move [__]ksize and slab_ksize() to mm/slub.c")
However, the public header still contains a kernel-doc comment
attached to the ksize() prototype.
Having documentation both in the header and next to the implementation
causes Sphinx to treat the function as being documented twice,
resulting in the warning:
WARNING: Duplicate C declaration, also defined at core-api/mm-api:521
Declaration is '.. c:function:: size_t ksize(const void *objp)'
Kernel-doc guidelines recommend keeping the documentation with the
function implementation. Therefore remove the redundant kernel-doc
block from include/linux/slab.h so that the implementation in slub.c
remains the canonical source for documentation.
No functional change.
Fixes: fab0694646 ("mm/slab: move [__]ksize and slab_ksize() to mm/slub.c")
Signed-off-by: Sanjay Chitroda <sanjayembeddedse@gmail.com>
Link: https://patch.msgid.link/20260226054712.3610744-1-sanjayembedded@gmail.com
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
alloc_empty_sheaf() allocates sheaves from SLAB_KMALLOC caches using
__GFP_NO_OBJ_EXT to avoid recursion, however it does not mark their
allocation tags empty before freeing, which results in a warning when
CONFIG_MEM_ALLOC_PROFILING_DEBUG is set. Fix this by marking allocation
tags for such sheaves as empty.
The problem was technically introduced in commit 4c0a17e283 but only
becomes possible to hit with commit 913ffd3a1b.
Fixes: 4c0a17e283 ("slab: prevent recursive kmalloc() in alloc_empty_sheaf()")
Fixes: 913ffd3a1b ("slab: handle kmalloc sheaves bootstrap")
Reported-by: David Wang <00107082@163.com>
Closes: https://lore.kernel.org/all/20260223155128.3849-1-00107082@163.com/
Analyzed-by: Harry Yoo <harry.yoo@oracle.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Tested-by: Harry Yoo <harry.yoo@oracle.com>
Tested-by: David Wang <00107082@163.com>
Link: https://patch.msgid.link/20260225163407.2218712-1-surenb@google.com
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
When refill_sheaf() is called, failing to refill the sheaf doesn't
necessarily mean the allocation will fail because a fallback path
might be available and serve the allocation request.
Suppress spurious warnings by passing __GFP_NOWARN along with
__GFP_NOMEMALLOC whenever a fallback path is available.
When the caller is alloc_full_sheaf() or __pcs_replace_empty_main(),
the kernel always falls back to the slowpath (__slab_alloc_node()).
For __prefill_sheaf_pfmemalloc(), the fallback path is available
only when gfp_pfmemalloc_allowed() returns true.
Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com>
Closes: https://lore.kernel.org/linux-mm/aZt2-oS9lkmwT7Ch@debian.local
Fixes: 1ce20c28ea ("slab: handle pfmemalloc slabs properly with sheaves")
Link: https://lore.kernel.org/linux-mm/aZwSreGj9-HHdD-j@hyeyoo
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Link: https://patch.msgid.link/20260223133322.16705-1-harry.yoo@oracle.com
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Uniwill devices have a built in gesture in the touchpad to de- and
reactivate it by double taping the upper left corner. This gesture stops
working when latency is set to high, so this patch keeps the latency on
normal.
Cc: stable@vger.kernel.org
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
[jkosina@suse.com: change bit from 24 to 25]
[jkosina@suse.com: update shortlog]
Signed-off-by: Jiri Kosina <jkosina@suse.com>
We don't process this driver code for kernel-doc, and the "/**" marker
leads to warnings with W=1 builds. Drop the superfluous markers, and
also fix the invalid mark up, too.
Link: https://patch.msgid.link/20260226155456.1092186-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
At fixing the memory leak of xfer buffer, we forgot to update the
corresponding comment, too. This resulted in a kernel-doc warning
with W=1. Let's correct it.
Fixes: 5c7ef50012 ("ALSA: qc_audio_offload: avoid leaking xfer_buf allocation")
Link: https://patch.msgid.link/20260226154414.1081568-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
We don't process USB-audio driver code for kernel-doc, and the "/**"
marker leads to warnings with W=1 builds. Drop the superfluous
markers.
Link: https://patch.msgid.link/20260226154414.1081568-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In ath12k_wmi_tlv_fw_stats_data_parse() and
ath12k_wmi_tlv_rssi_chain_parse(), the driver uses
ieee80211_find_sta_by_ifaddr() to look up the station associated with the
incoming firmware statistics. This works under normal conditions but fails
during AP disconnection, resulting in log messages like:
wlan0: deauthenticating from xxxxxx by local choice (Reason: 3=DEAUTH_LEAVING)
wlan0: moving STA xxxxxx to state 3
wlan0: moving STA xxxxxx to state 2
wlan0: moving STA xxxxxx to state 1
ath12k_pci 0000:02:00.0: not found station bssid xxxxxx for vdev stat
ath12k_pci 0000:02:00.0: not found station of bssid xxxxxx for rssi chain
ath12k_pci 0000:02:00.0: failed to pull fw stats: -71
ath12k_pci 0000:02:00.0: time out while waiting for get fw stats
wlan0: Removed STA xxxxxx
wlan0: Destroyed STA xxxxxx
The failure happens because the station has already been removed from
ieee80211_local::sta_hash by the time firmware statistics are requested
through drv_sta_statistics().
Switch the lookup to ath12k_link_sta_find_by_addr(), which searches the
driver's link station hash table that still has the station recorded
at that time. This also implicitly fixes another issue: the current code
always uses deflink regardless of which link the statistics belong to,
which is incorrect in MLO scenarios. The new helper returns the correct
link station.
Additionally, raise the log level on lookup failures. With the updated
helper, such failures should no longer occur under normal conditions.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3
Fixes: 79e7b04b53 ("wifi: ath12k: report station mode signal strength")
Fixes: 6af5bc381b ("wifi: ath12k: report station mode per-chain signal strength")
Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20260129-ath12k-fw-stats-fixes-v1-2-55d66064f4d5@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
To get firmware statistics, currently ar->pdev->pdev_id is passed as an
argument to ath12k_mac_get_fw_stats() in ath12k_mac_op_sta_statistics().
For single pdev device like WCN7850, its value is 0 which represents the
SoC pdev id. As a result, WCN7850 firmware sends the same reply to host
twice, which further results in memory leak:
unreferenced object 0xffff88812e286000 (size 192):
comm "softirq", pid 0, jiffies 4294981997
hex dump (first 32 bytes):
10 a5 40 11 81 88 ff ff 10 a5 40 11 81 88 ff ff ..@.......@.....
00 00 00 00 00 00 00 00 80 ff ff ff 33 05 00 00 ............3...
backtrace (crc cecc8c82):
__kmalloc_cache_noprof
ath12k_wmi_tlv_fw_stats_parse
ath12k_wmi_tlv_iter
ath12k_wmi_op_rx
ath12k_htc_rx_completion_handler
ath12k_ce_per_engine_service
ath12k_pci_ce_workqueue
process_one_work
bh_worker
tasklet_action
handle_softirqs
Detailed explanation is:
1. ath12k_mac_get_fw_stats() called in ath12k_mac_op_sta_statistics() to
get vdev statistics, making the caller thread wait.
2. firmware sends the first reply, ath12k_wmi_tlv_fw_stats_data_parse()
allocates buffers to cache necessary information. Following that, in
ath12k_wmi_fw_stats_process() if events of all started vdev haved been
received, is_end flag is set hence the waiting thread gets waken up by
the ar->fw_stats_done/->fw_stats_complete signals.
3. ath12k_mac_get_fw_stats() wakes up and returns successfully.
ath12k_mac_op_sta_statistics() saves required parameters and calls
ath12k_fw_stats_reset() to free buffers allocated earlier.
4. firmware sends the second reply. As usual, buffers are allocated and
attached to the ar->fw_stats.vdevs list. Note this time there is no
thread waiting, therefore no chance to free those buffers.
5. ath12k module gets unloaded. If there has been no more firmware
statistics request made since step 4, or if the request fails (see
the example in the following patch), there is no chance to call
ath12k_fw_stats_reset(). Consequently those buffers leak.
Actually for single pdev device, using SoC pdev id in
ath12k_mac_op_sta_statistics() is wrong, because the purpose is to get
statistics of a specific station, which is mapped to a specific pdev. That
said, the id of actual individual pdev should be fetched and used instead.
The helper ath12k_mac_get_target_pdev_id() serves for this purpose, hence
use it to fix this issue. Note it also works for other devices as well due
to the single_pdev_only check inside.
The same applies to ath12k_mac_op_get_txpower() and
ath12k_mac_op_link_sta_statistics() as well.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3
Fixes: 79e7b04b53 ("wifi: ath12k: report station mode signal strength")
Fixes: e92c658b05 ("wifi: ath12k: add get_txpower mac ops")
Fixes: ebebe66ec2 ("wifi: ath12k: fill link station statistics for MLO")
Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20260129-ath12k-fw-stats-fixes-v1-1-55d66064f4d5@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
EPOMAKER TH87 has the very same ID as Apple Aluminum keyboard
(05ac:024f) although it doesn't work as expected in compatible way.
Put three entries to the non-apple keyboards list to exclude this
device: one for BT ("TH87"), one for USB ("HFD Epomaker TH87") and one
for dongle ("2.4G Wireless Receiver").
Link: https://bugzilla.suse.com/show_bug.cgi?id=1258455
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Add device IDs of Nova Lake-H and Nova Lake-S into ishtp support list.
Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
