Pull s390 fixes from Vasily Gorbik:
- Fix missing array_index_nospec() call in diag310 memory topology code
to prevent speculative execution with a user controlled array index
- Fix get_align_mask() return type to match vm_unmapped_area_info
align_mask, avoiding possible truncation for future larger masks
- Remove empty zcrypt CEX2 files left over after CEX2 and CEX3 driver
removal
- Add build salt to the vDSO so it gets a unique build id, similar to
the kernel and modules
* tag 's390-7.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: Add build salt to the vDSO
s390/zcrypt: Remove the empty file
s390/mm: Fix type mismatch in get_align_mask().
s390/diag: Add missing array_index_nospec() call to memtop_get_page_count()
Pull RISC-V fixes from Paul Walmsley:
"The most notable change involves the rseq kselftest common Makefile
(as it is not RISC-V-specific). The basic approach in the patch
appears similar to one used in the KVM and S390 selftests (grep for
LINUX_TOOL_ARCH_INCLUDE and SUBARCH), and the rseq kselftests pass a
quick build test on x86 after this.
- Avoid a null pointer deference in machine_kexec_prepare() that the
IMA subsystem can trigger
- Bypass libc in part of the ptrace_v_not_enabled kselftest to avoid
noise from child atfork handlers that libc might run
- Include Kconfig support for UltraRISC SoCs, already referenced by
some device drivers; and enable it in our defconfig
- Fix the build of the rseq kselftest for RISC-V by borrowing a
technique from the KVM and S390 kselftests that includes
arch-specific header files from tools/arch/<arch>/include
- Fix some memory leaks in the RISC-V vector ptrace kselftests
- Clean up some DT bindings and hwprobe documentation"
* tag 'riscv-for-linus-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
selftests/riscv: ptrace: Fix memory leak of regset_data in vector tests
selftests/rseq: Fix a building error for riscv arch
riscv: defconfig: enable ARCH_ULTRARISC
riscv: add UltraRISC SoC family Kconfig support
riscv: hwprobe.rst: Document EXT_ZICFISS and EXT_ZICFILP
riscv: hwprobe.rst: Make indentation consistent
dt-bindings: riscv: sort multi-letter Z extensions alphanumerically
selftests: riscv: Bypass libc in inactive vector ptrace test
riscv: Prevent NULL pointer dereference in machine_kexec_prepare()
Pull m68knommu fix from Greg Ungerer:
"Fix incorrectly updated local SoC IO access function names.
Testing didn't pick them up because there was no specific defconfig
for these particular SoC parts. New defconfigs will be introduced in
the next merge cycle to remedy that"
* tag 'm68knommu-fixes-on-top-off-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68k: coldfire: fix breakage of missed IO access updates
Pull tracing fixes from Steven Rostedt:
- Free field in error path of synthetic event parse
In __create_synth_event() the field was allocated but was not freed
in the error path
- Fix ring_buffer_event_length() on 8 byte aligned architectures
On architectures with CONFIG_HAVE_64BIT_ALIGNED_ACCESS set to y, the
ring_buffer_event_length() may return the wrong size. This is because
archs with that config set will always use the "big event meta
header" as that is 8 bytes keeping the payload 8 bytes aligned, even
when a 4 byte header could hold the size of the event
But ring_buffer_event_length() doesn't take this into account and
only subtracts 4 bytes for the meta header in the length when it
should have subtracted 8 bytes
- Have osnoise wait for a full rcu synchronization on unregister
osnoise_unregister_instance() used to call synchronize_rcu() before
freeing its copy of the instance but was switched to kfree_rcu(). The
osniose tracer has code that traverses the instances that it uses,
and inst is just a pointer to that instance. By using kfree_rcu()
instead of synchronize_rcu(), the instance that the inst pointer is
pointing to can be freed while the osnoise code is still referencing
it
That is, a rmdir on an instance first unregisters the tracer. When
the unregister finishes, the rmdir expects that the tracer is
finished with the instance that it is using. By putting back the
synchronize_rcu() in osnoise_unregister_instance() the unregistering
of osnoise will now return when all the users of the instance have
finished
- Remove an unused setting of "ret" in tracing_set_tracer()
- Fix ring_buffer_read_page() copying events
The commit that changed ring_buffer_read_page() to show dropped
events from the buffer itself, split the "commit" variable between
the commit value (with flags) and "size" that holds the size of the
sub-buffer. A cut and paste error changed the test of the reading
from checking the size of the buffer to the size of the event causing
reads to only read one event at a time
- Make tracepoint_printk a static variable
When the tracing sysctl knobs were move from sysctl.c to trace.c, the
variable tracepoint_printk no longer needed to be global. Make it
static
- Fix some typos
- Fix NULL pointer dereference in func_set_flag()
The flags update of the function tracer first checks if the value of
the flag is the same and exits if they are, and then it checks if the
current tracer is the function tracer and exits if it isn't. The
problem is that these checks need to be in a reversed order, as if
the tracer isn't the function tracer, then the flag being checked may
not exist. Reverse the order of these checks
- Fix ufs core trace events to not dereference a pointer in TP_printk()
The TP_printk() part of the TRACE_EVENT() macro is called when the
user reads the "trace" file. This can be seconds, minutes, hours,
days, weeks, and even months after the data was recorded into the
ring buffer. Thus, saving a pointer to an object into the ring buffer
and then dereferencing it from TP_printk() can cause harm as the
object the pointer is pointing to may no longer exist
Fix all the trace events in ufs core to save the device name in the
ring buffer instead of dereferencing the device descriptor from
TP_printk()
- Prevent out-of-bound reads in glob matching of trace events
The filter logic of events allows simple glob logic to add wild cards
to filter on strings. But some events have fields that may not have a
terminating 'nul' character. This may cause the glob matching to go
beyond the string. Change the logic to always pass in the length of
the field that is being matched
- Add no-rcu-check version of trace_##event##_enabled()
The trace_##event##_enabled() usually wraps trace events to do extra
work that is only needed when the trace event is enabled. But this
can hide events that are placed in locations where RCU is not
watching, and can make lockdep not see these bugs when the event is
not enabled
The trace_##event##_enabled() was updated to always test to make sure
RCU is watching to catch locations that may call events without RCU
being active
This caused a false positive for the irq_disabled() and related
events. As that use trace_irq_disabled_enabled() to force RCU to be
watching when the event is enabled via the ct_irq_enter() function,
calls the event, and then calls ct_irq_exit() to put RCU back to its
original state
The trace_irq_disabled_enabled() should not trigger a warning when
RCU is not watching because the code within its block handles the
case properly. Make a __trace_##event##_enabled() version for this
event to use that doesn't check RCU is watching as it handles the
case when it isn't
- Fix use-after-free in user_event_mm_dup()
When the enabler is removed from the link list, it is freed
immediately. But it is protected via RCU and needs to be freed after
an RCU grace period. Use queue_rcu_work() so that the event_mutex can
also be taken as user_event_put() takes the mutex on the last
reference is released
- Free type string in error path of parse_synth_field()
There's an error path in parse_synth_field() where the allocated type
string is not freed
- Add selftest that tests deferred event teardown
- Fix leak in error path of trace_remote_alloc_buffer()
If page allocation fails, the desc->nr_cpus is not incremented for
the current CPU and the allocations done for it are not freed
- Fix allocation length in trace_remote_alloc_buffer()
The logic to calculate the struct_len was doing a double count and
setting the value too large. Calculate the size upfront to fix the
error and simplify the logic
- Fix sparse CPU masks in ring_buffer_desc()
If there are sparse CPUs (gaps in the numbering), the
ring_buffer_desc() will fail as it tests the CPU number against the
number of CPUs that are used
* tag 'trace-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Allow sparse CPU masks in ring_buffer_desc()
tracing/remotes: Fix struct_len in trace_remote_alloc_buffer()
tracing/remotes: Fix leak in trace_remote_alloc_buffer() error path
selftests/user_events: Wait for deferred event teardown after unregister
tracing/synthetic: Free type string on error path
tracing/user_events: Fix use-after-free in user_event_mm_dup()
tracing: Add a no-rcu-check version of trace_##event##_enabled()
tracing: Prevent out-of-bounds read in glob matching
ufs: core: tracing: Do not dereference pointers in TP_printk()
tracing: Fix NULL pointer dereference in func_set_flag()
samples: ftrace: Fix typos in benchmark comment
tracing: Make tracepoint_printk static as not exported
ring-buffer: Fix ring_buffer_read_page() copying only one event per page
tracing: Remove unused ret assignment in tracing_set_tracer()
tracing/osnoise: Call synchronize_rcu() when unregistering
ring-buffer: Fix event length with forced 8-byte alignment
tracing/synthetic: Free pending field on error path
If dfp is not NULL we exit early here, when dfp is NULL it's allocated
in xfs_defer_alloc() but not assigned. The tracepoint tries to
dereference members of dfp struct.
Signed-off-by: Andrey Albershteyn <aalbersh@kernel.org>
Cc: stable@vger.kernel.org # v6.8
Fixes: 3f3cec0310 ("xfs: force small EFIs for reaping btree extents")
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
cmdline_find_option() returns the full length of the parsed acpi_rsdp=
value. get_cmdline_acpi_rsdp() then silently truncates values which do
not fit in the val[] buffer.
Prevent boot_kstrtoul() from parsing a truncated value and then the
kernel from silently using the wrong RSDP address, see discussion in
Link:.
Issue a warning so that the user is aware that s/he supplied a malformed
value and can get feedback instead of silent crashes.
[ bp: Make commit message more precise. ]
Fixes: 3c98e71b42 ("x86/boot: Add "acpi_rsdp=" early parsing")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20260617130417.36651-4-thorsten.blum@linux.dev
Pull input fixes from Dmitry Torokhov:
- fix MELFAS MMS114 touchscreen driver to reject invalid touch IDs and
avoid multi-touch slot corruption
- fix a crash in the Sega Dreamcast (Maple) mouse driver when opening
the device, caused by missing driver data
- fixes for Maple drivers (keyboard, mouse, joystick) to properly order
setting driver data and device registration to avoid races
* tag 'input-for-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: mms114 - fix multi-touch slot corruption
Input: maple_keyb - set driver data before registering input device
Input: maplecontrol - set driver data before registering input device
Input: maplemouse - set driver data before registering input device
Input: maplemouse - fix NULL pointer dereference in open()
Pull device mapper fixes from Mikulas Patocka:
- dm-log: fix overflow on 32-bit machines
- dm-era: fix out of bounds memory access; fix crashes on invalid args
- dm-verity: fix buffer overflow in forward error correction
- dm-thin: fix misbehavior on I/O failures
- dm-pcache: fix NULL pointer dereference on invalid arguments
- dm-inlinecrypt: fix memory leak on error handling
- dm-integrity: fix ignoring the 'fix_hmac' option on device open
- dm: don't store the keyring in memory for a long term
- 12 miscellaneous fixes for bugs found by Claude Opus 4.6
* tag 'for-7.2/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (23 commits)
dm thin metadata: fix superblock refcount leak on snapshot shadow failure
dm-stats: fix dm_jiffies_to_msec64
dm-stats: fix merge accounting
dm-bufio: fix wrong count calculation in dm_bufio_issue_discard
dm-verity: make error counter atomic
dm-verity: increase sprintf buffer size
dm-verity: fix a possible NULL pointer dereference
dm-verity: avoid double increment of &use_bh_wq_enabled
dm-ioctl: fix a possible overflow in list_version_get_info
dm_early_create: fix freeing used table on dm_resume failure
dm-integrity: fix a bug if the bio is out of limits
dm-integrity: don't increment hash_offset twice
dm-integrity: fix leaking uninitialized kernel memory
dm-integrity: fix the 'fix_hmac' option
dm era: fix error code propagation in era_ctr()
dm era: fix NULL pointer dereference in metadata_open()
dm: avoid leaking the caller's thread keyring via the table device file
dm-inlinecrypt: Fix an error handling path in inlinecrypt_ctr()
dm-pcache: reject option groups without values
dm thin metadata: fix metadata snapshot consistency on commit failure
...
Pull perf events fixes from Ingo Molnar:
- Fix SVM #GP on AMD CPUs that LBR but not BRS (Sandipan Das)
- Fix UAF bug in the perf AUX code (Lee Jia Jie)
- Fix address leakage in the AMD LBR code (Sandipan Das)
- Fix address leakage in the AMD BRS code (Sandipan Das)
* tag 'perf-urgent-2026-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/amd/brs: Fix kernel address leakage
perf/x86/amd/lbr: Fix kernel address leakage
perf/aux: Fix page UAF in map_range()
perf/x86/amd/core: Avoid enabling BRS from the SVM reload path
Pull x86 fixes from Ingo Molnar:
- Fix resctrl resource leak (Tony Luck)
- Fix resctrl umount race (Tony Luck)
- Fix resctrl double-free (Reinette Chatre)
- Fix x86 VGA display fallback logic during bootup on
certain multi-GPU systems (Mario Limonciello)
- Re-add a WBINVD call to the SNP bootstrap path to
fix an SNP regression (Tycho Andersen)
* tag 'x86-urgent-2026-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/virt/sev: Revert "Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN"
x86/video: Only fall back to vga_default_device() without screen info
fs/resctrl: Fix double-add of pseudo-locked region's RMID to free list
fs/resctrl: Fix use-after-free during unmount
fs/resctrl: Free mon_data structures on rdt_get_tree() failure
Pull timer fix from Ingo Molnar:
- Fix a subtle posix-cpu-timers vs. exec() race, which
unearthed other races in the area (Thomas Gleixner)
* tag 'timers-urgent-2026-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Prevent UAF caused by non-leader exec() race
Pull block fixes from Jens Axboe:
- Limit blk_hctx_poll() to one jiffy. Prevents buggy drivers from
spinning for too long, hence triggering a stalled RCU read section
warning
- Avoid a potential deadlock on zone revalidation failure, which could
otherwise trigger a lockdep circular locking splat during a SCSI disk
rescan
- Remove a redundant GD_NEED_PART_SCAN set in add_disk_final()
- Make writes to queue/wbt_lat_usec honor the WBT enable state
- ublk fix to snapshot the batch commands before preparing IO, so that
userspace can't change an already processed tag and trip the
WARN_ON_ONCE() in the rollback path
- xen-blkfront fix for a double completion of split requests on resume
- drbd fix to reject data replies with an out-of-range payload size
* tag 'block-7.2-20260710' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block: remove redundant GD_NEED_PART_SCAN in add_disk_final()
drbd: reject data replies with an out-of-range payload size
xen-blkfront: fix double completion of split requests on resume
ublk: snapshot batch commands before preparing I/O
block: Make WBT latency writes honor enable state
block: avoid potential deadlock on zone revalidation failure
blk-mq: bound blk_hctx_poll() to one jiffy
Pull io_uring fixes from Jens Axboe:
- Restore full RCU read section in io_req_local_work_add(), which was
mistakenly dropped with the DEFER_TASKRUN rework in this merge
window. Revert the commit that grabbed the RCU read lock in
io_ctx_mark_taskrun(), as that's no longer required with the previous
fix.
- Fix a dangling iovec after a provided-buffer bundle grow failure,
also an issue introduced in this merge window.
- Reject IORING_CQE_F_32 flag pass-through in MSG_RING to rings that
weren't setup with CQE32 or CQE_MIXED.
- Return -EINVAL rather than -ENOMEM from get_unmapped_area() when mmap
validation fails, matching io_uring_mmap().
* tag 'io_uring-7.2-20260710' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
Revert "io_uring: grab RCU read lock marking task run"
io_uring: restore RCU read section in io_req_local_work_add()
io_uring: fix dangling iovec after provided-buffer bundle grow failure
io_uring/uring_cmd: fix uring_cmd.c comments
io_uring/msg_ring: reject CQE32 flag pass-through to normal rings
io_uring/memmap: return -EINVAL from get_unmapped_area() on bad mmap
__reserve_metadata_snap() increments THIN_SUPERBLOCK_LOCATION in the
metadata space map before shadowing it. When dm_tm_shadow_block()
fails, a reference is leaked in the metadata space map.
Fix by adding the missing dm_sm_dec_block().
Signed-off-by: Genjian Zhang <zhanggenjian@kylinos.cn>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: cc8394d86f ("dm thin: provide userspace access to pool metadata")
Cc: stable@vger.kernel.org
Open vSwitch stores generated flow actions as nlattrs, whose nla_len
field is u16. Commit a1e64addf3 ("net: openvswitch: remove
misbehaving actions length check") allowed the total sw_flow_actions
stream to grow beyond 64 KiB, which is valid, but also removed the last
guard preventing a generated nested action attribute from exceeding
U16_MAX.
An oversized generated container can thus be closed with a truncated
nla_len. A later dump or teardown then walks a structurally different
stream than the one that was validated. In particular, an oversized
nested CLONE/CT action may cause subsequent bytes in the generated
stream to be interpreted as independent actions.
Keep the larger total-action-stream behavior, but make nested action
close reject generated containers that do not fit in nla_len, and return
the error through all callers. For recursive SAMPLE, CLONE, DEC_TTL, and
CHECK_PKT_LEN builders, trim resource-owning action-list tails in reverse
construction order before discarding failed wrappers, so resources copied
into the rejected tails are released before the wrappers are removed.
Most failed outer wrappers are discarded by truncating actions_len after
child resources have been released. CHECK_PKT_LEN also trims its parent
after branch resources are gone. SET/TUNNEL close failures unwind their
known tun_dst ownership directly, and SET_TO_MASKED has no external
ownership and truncates on close failure.
Fixes: a1e64addf3 ("net: openvswitch: remove misbehaving actions length check")
Cc: stable@vger.kernel.org
Assisted-by: avom-custom-harness:gpt-5.5-qwen3.6-mod-mix
Signed-off-by: Asim Viladi Oglu Manizada <manizada@pm.me>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Reviewed-by: Ilya Maximets <i.maximets@ovn.org>
Link: https://patch.msgid.link/20260706094336.38639-1-manizada@pm.me
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When a MACsec interface with IFF_PROMISC set is brought up on top of a
device that has hardware offload enabled, macsec_dev_open() first calls
dev_set_promiscuity(real_dev, 1) and then propagates the open to the
offload device. If that propagation fails, the error path jumps to the
clear_allmulti label, which only reverts allmulti and the unicast
address. The promiscuity taken on the lower device is never dropped, so
real_dev is left permanently stuck in promiscuous mode. Its promiscuity
count can no longer be balanced from software.
Add a clear_promisc label that drops the promiscuity reference and
route the two offload failure paths to it. The dev_set_promiscuity()
failure itself still jumps to clear_allmulti, since on that failure the
count was not incremented.
Fixes: 3cf3227a21 ("net: macsec: hardware offloading infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link/20260705113629.187490-1-jamestiotio@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Steffen Klassert says:
====================
pull request (net): ipsec 2026-07-10
1) xfrm: propagate -EINPROGRESS from validate_xmit_xfrm()
Return -EINPROGRESS from xfrm_output_one when validate_xmit_xfrm
requeues the packet asynchronously, so the caller doesn't treat it
as a real error and free the skb.
2) xfrm: fix stale skb->prev after async crypto steals a GSO segment
Re-derive skb->prev from the fragment list after async crypto splits
a GSO skb, keeping the linked-list pointers validi.
3) xfrm: nat_keepalive: avoid double free on send error
Hold a state ref while the nat_keepalive timer is active and drop the
timer before freeing the state, preventing a re-entered free on send
error.
4) xfrm: fix sk_dst_cache double-free in xfrm_user_policy()
Null the skb dst cache before freeing the policy so a later skb
destructor doesn't double-free it.
5) xfrm: cache the offload ifindex for netlink dumps
Cache the device ifindex at state-add time and use it for netlink
dumps instead of dereferencing dst->dev, which may have changed by
the time the dump runs.
6) xfrm: reject optional IPTFS templates in outbound policies
Reject outbound policies with an optional IPTFS template,
IPTFS must always be used if configured.
7) xfrm: clear mode callbacks after failed mode setup
Clear the mode->init_flags and init_state callbacks on the error path
after xfrm_init_mode fails, so a partially-initialised mode isn't
reused in xfrm_state_construct.
8) xfrm: iptfs: propagate SKBFL_SHARED_FRAG in iptfs_skb_add_frags()
Propagate SKBFL_SHARED_FRAG from the original skb to fragments
allocated by iptfs_skb_add_frags, keeping shared-fragment accounting
correct after IPTFS reassembly.
9) xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst()
Clear dst->dev on the error path of xfrm6_fill_dst() so the caller
doesn't release the netdev reference twice via dst_release.
10) xfrm: policy: preallocate inexact bins before xfrm_hash_rebuild reinsert
Preallocate all inexact hash bins before existing entries are
reinserted during xfrm_hash_rebuild, so reinsertion always hits an
existing bin.
Please pull or let me know if there are problems.
ipsec-2026-07-10
* tag 'ipsec-2026-07-10' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
xfrm: policy: preallocate inexact bins before xfrm_hash_rebuild reinsert
xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst()
xfrm: iptfs: propagate SKBFL_SHARED_FRAG in iptfs_skb_add_frags()
xfrm: clear mode callbacks after failed mode setup
xfrm: reject optional IPTFS templates in outbound policies
xfrm: cache the offload ifindex for netlink dumps
xfrm: fix sk_dst_cache double-free in xfrm_user_policy()
xfrm: nat_keepalive: avoid double free on send error
xfrm: fix stale skb->prev after async crypto steals a GSO segment
xfrm: propagate -EINPROGRESS from validate_xmit_xfrm()
====================
Link: https://patch.msgid.link/20260710090349.343389-1-steffen.klassert@secunet.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
A user-only branch stack can contain branches that originate from
the kernel. As a result, kernel addresses are exposed to user space
even when PERF_SAMPLE_BRANCH_USER is requested. On AMD processors
supporting X86_FEATURE_BRS (Zen 3 only), perf can still report entries
such as SYSRET/interrupt returns for which the branch-from addresses
are in the kernel.
E.g.
$ perf record -j any,u -c 4000 -e branch-brs -o - -- \
perf bench syscall basic --loop 1000 | \
perf script -i - -F brstack|tr ' ' '\n'| \
grep -E '0x[89a-f][0-9a-f]{15}'
...
0xffffffff810001c4/0x72e2e32955eb/-/-/-/0//-
0xffffffff810001c4/0x72e2d94a9821/-/-/-/0//-
0xffffffff810001c4/0x72e2d94ffa1b/-/-/-/0//-
...
BRS provides no hardware branch filtering, so privilege level
filtering is performed entirely in software. However, amd_brs_match_plm()
only validates the branch-to address against the requested privilege
levels. For branches from the kernel to user space, the branch-from
address is left unchecked and is leaked. Extend the software filter to
also validate the branch-from address, so that any branch record whose
branch-from address is in the kernel is dropped when
PERF_SAMPLE_BRANCH_USER is requested.
Fixes: 8910075d61 ("perf/x86/amd: Enable branch sampling priv level filtering")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Sandipan Das <sandipan.das@amd.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://patch.msgid.link/f05931c4f89a146c364bd5dc6b8170b1ac611c65.1783701239.git.sandipan.das@amd.com
Closes: https://lore.kernel.org/all/20260710110235.F3FD81F000E9@smtp.kernel.org/
If the touchscreen controller reports a touch ID of 0, the driver
calculates the slot ID as touch->id - 1, which underflows to UINT_MAX.
This is passed to input_mt_slot() as -1.
Since the input core ignores negative slot values, the active slot remains
unchanged. The driver then reports the touch coordinates for the previously
active slot, corrupting its state.
Fix this by rejecting touch reports with ID 0.
Fixes: 07b8481d4a ("Input: add MELFAS mms114 touchscreen driver")
Cc: stable@vger.kernel.org
Reported-by: sashiko-bot@kernel.org
Assisted-by: Antigravity:gemini-3.5-flash
Link: https://patch.msgid.link/20260704060115.353049-1-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Pull regulator fixes from Mark Brown:
"A couple of straightforward fixes for device loading, plus a fix for
the core support for keeping multiple regulators with voltages close
to each other that was sadly introduced due to one of the more
beautiful corners of our API design"
* tag 'regulator-fix-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: core: regulator_lock_two() should test for EDEADLK not EDEADLOCK
regulator: mt6363: add missing MODULE_DEVICE_TABLE()
regulator: mt6316: add missing MODULE_DEVICE_TABLE()
Pull audit fixes from Paul Moore:
"Two relatively small audit patches to fix potential data races with
the main audit backlog queue as well as possible integer overflows
when logging data as hex strings"
* tag 'audit-pr-20260710' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: fix potential integer overflow in audit_log_n_hex()
audit: Fix data races of skb_queue_len() readers on audit_queue
Pull selinux fixes from Paul Moore:
"Two small SELinux patches to fix a missing permission check for TCP
Fast Open operations and fix a socket lookup issue with SCTP ASCONF
operations"
* tag 'selinux-pr-20260710' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: avoid sk_socket dereference in selinux_sctp_bind_connect()
selinux: check connect-related permissions on TCP Fast Open
Pull ntfs fixes from Namjae Jeon:
- fix stale runlist element dereferences in MFT writeback and fallocate
- fix mrec_lock ABBA deadlock in rename
- prevent userspace modification of NTFS system files
- avoid inode eviction/writeback self-deadlocks
- reject malformed resident attributes in non-resident runlist mapping
- avoid post_write_mst_fixup() on invalid index blocks
- fix a hole runlist leak in insert-range error handling
- sanitize directory lookup MFT references from disk
- fail attribute-list updates after SB_ACTIVE is cleared during
teardown
* tag 'ntfs-for-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
ntfs: fail attrlist updates when the superblock is inactive
ntfs: sanitize MFT references returned from ntfs_lookup_inode_by_name()
ntfs: fix hole runlist memory leak in insert range error path
ntfs: avoid calling post_write_mst_fixup() for invalid index_block
ntfs: fix WARN_ON for resident attribute in ntfs_map_runlist_nolock()
ntfs: avoid self-deadlock during inode eviction
ntfs: make system files immutable to prevent corruption
ntfs: fix mrec_lock ABBA deadlock in rename
ntfs: avoid stale runlist element dereference in fallocate
ntfs: avoid stale runlist element dereference in MFT writeback
Pull NFS client fixes from Anna Schumaker:
- SUNRPC:
- Release lower rpc_clnt if killed waiting for XPRT_LOCKED
- Pin upper rpc_clnt across the TLS connect_worker
- NFS:
- Include MAY_WRITE in open permission mask for O_TRUNC
- Charge unstable writes by request size, not folio size
* tag 'nfs-for-7.2-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Charge unstable writes by request size, not folio size
NFSv4: include MAY_WRITE in open permission mask for O_TRUNC
SUNRPC: pin upper rpc_clnt across the TLS connect_worker
SUNRPC: release lower rpc_clnt if killed waiting for XPRT_LOCKED
Pull smb client fixes from Steve French:
- DFS cache allocation fix
- DFS referral bounds check fix
- Fix absolute symlinks when mounting with POSIX extensions
- Fixes for incorrect nlink returned by fstat
- Fix atime in read completion
- Fix busy dentry on umount
- ioctl_query_info buffer overflow fix
- Two fixes for creating special files with SFU
- Fix mode mask in parse_dacl
- SMB1 is_path_accessible wildcard fix and minor SMB1 cleanup
- smb2_check_message fix
- Debug message improvement
- Minor cleanup
* tag 'v7.2-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Remove CIFSSMBSetPathInfoFB() fallback function
cifs: Fix and improve cifs_is_path_accessible() function
smb: client: mask server-provided mode to 07777 in modefromsid
cifs: Show reason why autodisabling serverino support
smb/client: fix incorrect nlink returned by fstat()
smb/client: zero-initialize stack-allocated cifs_open_info_data
smb/client: pass cifs_open_info_data to SMB2_open()
smb/client: use stack-allocated smb2_file_all_info in smb3_query_mf_symlink()
smb: client: fix overflow in passthrough ioctl bounds check
smb: client: fix busy dentry warning on unmount after DIO
cifs: Fix support for creating SFU fifo
cifs: Fix support for creating SFU socket
smb: client: fix atime clamp check in read completion
cifs: validate DFS referral string offsets
smb: client: use GFP_KERNEL for DFS cache allocations
smb: client: restrict implied bcc[0] exemption to responses without data area
smb: client: preserve leading slash for POSIX absolute symlink targets
smb: client: refactor cifs_revalidate_mapping() to use clear_and_wake_up_bit()
The message of commit 504e2b4ab9 ("dma-buf/udmabuf: skip redundant cpu sync to
fix cacheline EEXIST warning") says:
> The CPU sync at map/unmap time is also redundant for udmabuf:
> begin_cpu_udmabuf() and end_cpu_udmabuf() already perform explicit
> cache synchronization via dma_sync_sgtable_for_cpu/device() when CPU
> access is requested through the dma-buf interface.
This, however, does not apply to the first time begin_cpu_udmabuf() is
called on an udmabuf, in which case the implementation previously relied on
get_sg_table() to perform the cache synchronisation.
Ensure to call dma_sync_sgtable_for_cpu() in that case as well.
Fixes: 504e2b4ab9 ("dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning")
Signed-off-by: Robert Mader <robert.mader@collabora.com>
Reviewed-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Link: https://patch.msgid.link/20260627105725.9083-1-robert.mader@collabora.com
I2C_DESIGNWARE_PLATFORM is default=y via I2C_DESIGNWARE_CORE, which is
enabled. No impact on include/generated/autoconf.h.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
arc_get_cpu_map() fetches the possible-cpus or present-cpus property
from the flat DT and immediately passes the raw pointer to
cpulist_parse(). That parser expects a NUL-terminated text buffer, but
this path does not prove that the DT property is terminated within its
declared bounds.
Reject unterminated CPU-map properties before handing them to
cpulist_parse().
Changes since v1:
- fold the NUL-termination check into the initial lookup test, as
suggested by Vineet Gupta
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
If page allocation fails in trace_remote_alloc_buffer(), desc->nr_cpus
is not yet incremented for the current CPU. As a consequence, on error,
half-allocated rb_desc will not be freed in trace_remote_free_buffer().
Increment desc->nr_cpus as soon as the first allocation for the current
CPU has succeeded.
Link: https://patch.msgid.link/20260709160017.1729517-2-vdonnefort@google.com
Fixes: 96e43537af ("tracing: Introduce trace remotes")
Reported-by: Sashiko <sashiko-bot@kernel.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
intel_vsec_add_dev() may attach an ACPI discovery table copy to the
intel_vsec_device before passing ownership to intel_vsec_add_aux(). The
normal auxiliary-device release path frees that copy, but the earliest
intel_vsec_add_aux() failures free only the outer structure directly.
Route those direct frees through a common helper so acpi_disc is
released consistently on the parent, xarray, and ID allocation failure
paths.
Fixes: 22fa2ebc11 ("platform/x86/intel/vsec: Plumb ACPI PMT discovery tables through vsec")
Signed-off-by: Yousef Alhouseen <alhouseenyousef@gmail.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Link: https://patch.msgid.link/CAMuQ4bUtJtYNTguKoiXngROJw0QQQcrvW3=3_B0-hpMQOFqvCQ@mail.gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Pull arm64 fixes from Will Deacon:
- Fix crash when using SMT hotplug on ACPI systems in conjunction with
maxcpus=
- Fix 30% kswapd performance regression introduced by C1-Pro SME
erratum workaround
- Fix TLB over-invalidation regression during memory hotplug
- Fix incorrect encoding of FEAT_BWE2 value in ID_AA64DFR2_EL1.BWE
- Typo fixes in the arm64 selftests
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
selftests/arm64: fix spelling errors in comments
arm64/sysreg: Fix BWE field encoding in ID_AA64DFR2_EL1
arm64/mm: Optimize TLB flush in unmap_hotplug_[pmd|pud]_range()
arm64: Avoid eager DVMSync reclaim batches with C1-Pro SME erratum
cpu/hotplug: Fix NULL kobject warning in cpuhp_smt_enable()
arm64: smp: Fix hot-unplug tearing by forcing unregistration
Pull x86 platform driver fixes from Ilpo Järvinen:
- amd/pmc:
- Use correct IP block table for AMD 1Ah M80H SoC
- Avoid logging "(null)" for missing DMI values
- asus-armoury: update power limits for G614PR
- bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume
* tag 'platform-drivers-x86-v7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: amd-pmc: Use correct IP block table for AMD 1Ah M80H SoC
platform/x86: asus-armoury: update power limits for G614PR
platform/x86: bitland-mifs-wmi: Fix NULL pointer dereference during suspend/resume
platform/x86/amd/pmc: Avoid logging "(null)" for DMI values
When switching a task's sched_class away from sched_ext, we get the
following sequence of events in __sched_setscheduler():
sched_change_begin()
switched_from_scx()
scx_disable_task(p)
ops.disable(p)
__setscheduler_params()
set_load_weight()
reweight_task_scx(p)
ops.set_weight(p)
p->sched_class = next_class;
sched_change_end()
...
Notably, ops.set_weight() is called _after_ ops.disable().
This violates the expected semantics of the callbacks, the expectation
being that ops.disable() can only be followed by ops.exit_task() or
ops.enable().
Skipping the weight adjustment for disabled tasks should be harmless
since the weight will be recalculated in scx_enable_task() if the task
ever rejoins SCX.
Fixes: 637b068282 ("sched: Fold sched_class::switch{ing,ed}_{to,from}() into the change pattern")
Cc: stable@vger.kernel.org # v6.19+
Signed-off-by: Kuba Piecuch <jpiecuch@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There were wrong calculations in dm_jiffies_to_msec64 that produced
incorrect output when HZ was different from 1000. This commit fixes them.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Assisted-by: Claude:claude-opus-4-6
Fixes: fd2ed4d252 ("dm: add statistics support")
Cc: stable@vger.kernel.org
There were wrong parentheses when setting stats_aux->merged, so that
merging was never properly accounted. This commit fixes it.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Assisted-by: Claude:claude-opus-4-6
Fixes: fd2ed4d252 ("dm: add statistics support")
Cc: stable@vger.kernel.org
block_to_sector converts a block number to a sector number and adds
c->start to the result. It is inappropriate to use this function for
converting the number of blocks to a number to sectors because c->start
would be incorrectly added to the result.
Luckily, the only target that uses dm_bufio_issue_discard is dm-ebs,
which sets c->start to 0, so this bug is latent.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Assisted-by: Claude:claude-opus-4-6
Fixes: 6fbeb0048e ("dm bufio: implement discard")
Cc: stable@vger.kernel.org
Pull gpio fixes from Bartosz Golaszewski:
- provide the missing .get_direction() callback in gpio-palmas
- fix interrupt handling in gpio-dwapb
- add a GPIO self-test program binary to .gitignore
- fix a resource leak in gpio-mvebu
- make the GPIO sharing heuristic more adaptable
* tag 'gpio-fixes-for-v7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mvebu: free generic chips on unbind
selftests: gpio: add gpio-cdev-uaf to .gitignore
gpio: dwapb: Mask interrupts at hardware initialization
gpio: dwapb: Defer clock gating until noirq
gpio: shared: make the voting mechanism adaptable
gpios: palmas: add .get_direction() op
Pull ata fixes from Damien Le Moal:
- Fix handling of security locked drive revalidation. This prevents
such drives from being dropped when locked on resume (Terrence)
* tag 'ata-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: libata-core: Allow capacity transition to zero for locked drives
ata: libata-core: Skip HPA resize for locked drives
Currently trigger-hist-poll.tc uses sched_process_free to test the polling
of the histogram file. The way it does that is to run sleep, then execute
the poll.c code that polls on the sched_process_free for up to 4 seconds
to test that when sleep triggers the sched_process_free trace event, it
will update the histogram and wake the poll.c code up.
The issue is that sched_process_free trace event is called by
delayed_put_task_struct() which is called after a RCU grace period has
ended. If CONFIG_RCU_LAZY is enabled, RCU callbacks are batched together
and do not execute right away. This causes the delayed_put_task_struct()
to be called after the poll.c function finishes and it will report an
error that it did not wake up on the event. That's because the event
didn't trigger during its wait time.
Use sched_process_exit instead, which is called when a process exits and
doesn't depend on RCU callbacks that may be delayed.
Link: https://lore.kernel.org/r/20260708163436.058cc3df@gandalf.local.home
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The add_remove_fprobe_module test checks the number of functions added to
the enabled_functions file to make sure that the functions added or
removed is as expected. The issue is that it expects this file to be empty
on start up.
Now that systemd uses BPF that attaches to functions via ftrace, this file
is not empty in several systems:
# cat /sys/kernel/tracing/enabled_functions
bpf_lsm_file_open (1) R D M tramp: ftrace_regs_caller+0x0/0x61 (call_direct_funcs+0x0/0x50)
direct(jmp)-->bpf_trampoline_6442529439+0x0/0xe9
Change the test to read the number of lines in enabled_functions at the
start of the test and subtract that from the value of the count for the
checks within the test.
Link: https://lore.kernel.org/r/20260708153239.055d56dd@gandalf.local.home
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Reject KVM_TDX_INIT_VM if userspace changes cpuid.nent between the
initial read and the subsequent copy of the initialization data.
tdx_td_init() first reads user_data->cpuid.nent to size the flexible
kvm_tdx_init_vm copy. The copied structure also contains cpuid.nent,
and that field can differ from the value used to size the allocation if
userspace modifies the input concurrently. setup_tdparams_cpuids() later
passes init_vm->cpuid.nent to kvm_find_cpuid_entry2(), which uses it as
the array bound for the copied entries.
Require the copied count to match the value used to size the allocation
so that CPUID parsing cannot access beyond the entries actually copied.
Fixes: 0bd0a4a142 ("KVM: TDX: Replace kmalloc + copy_from_user with memdup_user in tdx_td_init()")
Reported-by: Sashiko:gemini-3.1-pro-preview
Cc: <stable@vger.kernel.org>
Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260710035324.3170534-1-binbin.wu@linux.intel.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Linus Torvalds
Andrey AlbershteynandCarlos Maiolino
Thorsten BlumandBorislav Petkov (AMD)
Ethan Nelson-MooreandBorislav Petkov (AMD)
Genjian ZhangandMikulas Patocka
Miguel Ojeda
Asim Viladi Oglu ManizadaandPaolo Abeni
James Raphael TiovalenandPaolo Abeni
Sandipan DasandIngo Molnar
Dmitry Torokhov
Robert MaderandVivek Kasireddy
Krzysztof KozlowskiandVineet Gupta
Pengpeng HouandVineet Gupta
Vincent DonnefortandSteven Rostedt
Denis BenatoandIlpo Järvinen
Yousef AlhouseenandIlpo Järvinen
Kuba PiecuchandTejun Heo
Bartosz GolaszewskiandShuah Khan
Binbin WuandSean Christopherson
Gary YangandArnd Bergmann