Commit Graph

21436 Commits

Author SHA1 Message Date
Linus Torvalds
4235cb24ec vfs-7.2-rc5.fixes
Please consider pulling these changes from the signed vfs-7.2-rc5.fixes tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.2-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - vfs: Preserve the ACL_DONT_CACHE state in forget_cached_acl().

   ACL_DONT_CACHE is meant to be a permanent opt-out from ACL caching
   which FUSE relies on for servers that don't negotiate FUSE_POSIX_ACL.
   The helper replaced it with ACL_NOT_CACHED, silently re-enabling the
   cache, and as fuse doesn't invalidate the cache for such servers a
   properly timed get_acl() returned stale ACLs. Comes with a fuse
   selftest reproducing this.

 - pidfs:

     - Preserve PIDFD_THREAD when a thread pidfd is reopened via
       open_by_handle_at(). PIDFD_THREAD shares the O_EXCL bit which
       do_dentry_open() strips after the flags have been validated, so
       the reopened pidfd silently became a process pidfd. Comes with a
       selftest.

     - Add a pidfs_dentry_open() helper so the regular pidfd allocation
       path and the file handle path share the code that forces O_RDWR
       and reapplies the pidfd flags that do_dentry_open() strips.

     - Handle FS_IOC32_GETVERSION in the compat ioctl path.

     - Make pidfs_ino_lock static.

 - iomap:

     - Fix the block range calculation in ifs_clear_range_dirty() so a
       partial clear doesn't drop the dirty state of blocks the range
       only partially covers.

     - Support invalidating partial folios so a partial truncate or hole
       punch with blocksize < foliosize doesn't leave stale dirty bits
       behind.

     - Only set did_zero when iomap_zero_iter() actually zeroed
       something.

     - Guard ifs_set_range_dirty() and ifs_set_range_uptodate() against
       zero-length ranges where the unsigned last-block calculation
       underflows and bitmap_set() writes far beyond the ifs->state
       allocation.

     - Don't merge ioends with different io_private values as the merge
       could leak or corrupt the private data of the individual ioends.

 - exec:

     - Raise bprm->have_execfd only once the binfmt_misc interpreter has
       actually been opened. The flag was set as soon as a matching 'O'
       or 'C' entry was found. If the interpreter open failed with
       ENOEXEC the exec fell through to the next binary format with
       have_execfd raised but no executable staged and begin_new_exec()
       NULL derefed past the point of no return.

     - Fix an unsigned loop counter wrap in transfer_args_to_stack() on
       nommu. An overlong argument or environment string pushes bprm->p
       below PAGE_SIZE, the stop index becomes zero, and the loop never
       terminates, wrapping its counter and copying garbage from in
       front of the page array into the new process stack.

     - Make binfmt_elf_fdpic only honour the first PT_INTERP like
       binfmt_elf does. Each additional PT_INTERP overwrote the previous
       interpreter, leaking the name allocation and the interpreter file
       reference together with the write denial open_exec() took,
       leaving the file unwritable for as long as the system runs.

 - overlayfs:

     - Compare the full escaped xattr prefix including the trailing dot.
       An xattr like "trusted.overlay.overlayfoo" was misclassified as
       an escaped overlay xattr.

     - Check read access to the copy_file_range() source with the
       source's mounter credentials.

 - super: Thawing a filesystem whose block device was frozen with
   bdev_freeze() deadlocked. Dropping the last block layer freeze
   reference from under s_umount ends up in fs_bdev_thaw() which
   reacquires s_umount on the same task. Pin the superblock with an
   active reference instead and call bdev_thaw() without holding
   s_umount.

 - procfs: Return EACCES instead of success when the ptrace access check
   for namespace links fails.

 - afs: Use afs_dir_get_block() rather than afs_dir_find_block() for
   block 0 in afs_edit_dir_remove(), matching afs_edit_dir_add().

 - Push the memcg gating of ->nr_cached_objects() down into the btrfs
   and shmem callbacks instead of skipping every callback during
   non-root memcg reclaim. The blanket check short-circuited XFS whose
   inode reclaim hook is intentionally driven from per-memcg contexts to
   free memcg-charged slab.

 - eventpoll: Pin files while checking reverse paths.

   Since struct file became SLAB_TYPESAFE_BY_RCU a concurrent close
   could free and recycle the file under the check which then took and
   dropped the f_lock of whatever live file now occupies that slot.

* tag 'vfs-7.2-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (24 commits)
  super: fix emergency thaw deadlock on frozen block devices
  pidfs: make pidfs_ino_lock static
  eventpoll: pin files while checking reverse paths
  fs: push nr_cached_objects memcg gating into individual filesystems
  afs: Fix afs_edit_dir_remove() to get, not find, block 0
  iomap: prevent ioend merge when io_private differs
  iomap: add comments for ifs_clear/set_range_dirty()
  iomap: fix out-of-bounds bitmap_set() with zero-length range
  iomap: fix incorrect did_zero setting in iomap_zero_iter()
  iomap: support invalidating partial folios
  iomap: correct the range of a partial dirty clear
  fs/super: fix emergency thaw double-unlock of s_umount
  pidfs: handle FS_IOC32_GETVERSION in compat ioctl
  ovl: check access to copy_file_range source with src mounter creds
  proc: Fix broken error paths for namespace links
  pidfs: add pidfs_dentry_open() helper
  selftests/pidfd: check PIDFD_THREAD survives open_by_handle_at()
  pidfs: preserve thread pidfds reopened by file handle
  ovl: fix trusted xattr escape prefix matching
  selftests/fuse: add ACL_DONT_CACHE regression test
  ...
2026-07-26 12:22:57 -07:00
Linus Torvalds
09b2124a47 Char/Misc driver fixes for 7.2-rc5
Here are a number of small char/misc/etc. driver fixes for 7.2-rc5 that
 resolve a bunch of different reported issues.  Included in here are:
   - rust_binder error message reporting fix
   - stratix10-svc firmware driver fixes
   - mei driver fix
   - intel_th hardware tracing driver fix
   - comedi driver fix
   - uio_hv_generic driver fix
   - ntsync selftest fix
   - nsm misc driver fix
   - some MAINTAINER file updates
 
 All of these have been in linux-next for over a week with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a number of small char/misc/etc driver fixes for 7.2-rc5 that
  resolve a bunch of different reported issues. Included in here are:

   - rust_binder error message reporting fix

   - stratix10-svc firmware driver fixes

   - mei driver fix

   - intel_th hardware tracing driver fix

   - comedi driver fix

   - uio_hv_generic driver fix

   - ntsync selftest fix

   - nsm misc driver fix

   - some MAINTAINER file updates

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

* tag 'char-misc-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  MAINTAINERS: Update wine-devel list address
  rust_binder: only print failure if error has source
  intel_th: fix MSC output device reference leak
  misc: nsm: pin the module while the device is open
  mei: bus: access mei_device under device_lock on cleanup
  misc: nsm: only unlock nsm_dev on post-lock error paths
  selftests: ntsync: correct CONFIG_NTSYNC name
  comedi: comedi_parport: deal with premature interrupt
  uio_hv_generic: Bind to FCopy device by default
  MAINTAINERS: Add Greg Kroah-Hartman to GPIB
  firmware: stratix10-svc: fix teardown order in remove to prevent race
  firmware: stratix10-svc: handle NO_RESPONSE in async poll
  firmware: stratix10-svc: fix FCS SMC call kernel-doc
  firmware: stratix10-svc: fix memory leaks and list corruption bugs
2026-07-26 10:47:58 -07:00
Linus Torvalds
864be1277d tracing fix for 7.2:
- Move rb_desc->nr_page_va before updating dynamic array
 
   The rb_descr->page_va is a dynamic array counted by nr_page_va. But the
   updating of the page_va[] is done before the nr_page_va is incremented
   causing a build with CONFIG_UBSAN_BOUNDS to flag it as an overflow.
 
   Move the increment of the counted by value before the array element is
   updated.
 
 - Propagate errors from remote event bulk updates
 
   The return value of trace_remote_enable_event() was not being checked by
   remote_events_dir_enable_write() where it would silently fail. Have it
   check the return value and propagate that back up to user space.
 
 - Fix resource leak on mmiotrace trace_pipe close
 
   The mmiotrace tracer was created in 2008 before the trace_pipe had a close
   callback to allow tracers to do clean up from trace_pipe open. The
   trace_pipe close cleanup callback was added in 2009 but the mmiotrace
   tracer was not updated. It had a hack to do the cleanup in the read call,
   where it may leak if user space did not read the entire buffer.
 
   Add a callback to mmiotrace trace_pipe close do to the cleanup properly.
 
 - Fix a possible NULL pointer dereference in the mmiotrace tracer
 
   If the mmio_pipe_open() fails to find a PCI device, it will set the
   hiter->dev pointer to NULL. The read function will blindly dereference
   that pointer. Fix the read call to check to see if that pointer is
   populated before dereferencing it.
 
 - Fix union collision of module and refcnt for dynamic events
 
   In 'struct trace_event_call', the 'module' pointer and the 'refcnt' atomic
   variable share the same memory space in a union. The filter on module
   logic only checked if the 'module' was set to determine if the event
   belonged to the module. As dynamic events are always builtin, it doesn't
   need the 'module' field of the structure and used a refcount. But the
   module filtering logic would then mistaken these dynamic events as a
   module and call module_name(event->module) on it.
 
   Add a check to see if the event is a dynamic event and if so, do not check
   it for being part of the given module.
 
 - Reset the top level buffer in selftests before running instances
 
   The ftracetest selftest initializes each instance before executing the
   tests. But it does not reset the top level buffer. Dynamic events are only
   added and removed by the top level so any left over dynamic events will
   not be removed by the reset in the instances.
 
   Left over dynamic events can cause the tests to incorrectly fail. Reset
   the top level buffer before running the instances.
 
 - Make the context_switch counter 64 bit
 
   The code to read user space for a system call trace event or for a
   trace_marker will disable migration, enable preemption, read user space
   into a per CPU buffer, disable preemption and enable migration again.
   It checks if the per CPU context switch counter to see if it changed, and
   if it did not, it would know that the per CPU buffer was not touched by
   another task.
 
   But the save counter was 32 bit and it would compare it to the 64 bit
   context_switch variable. A long running system could have the
   context_switch variable greater that 1<<32 in which case the compare will
   always fail. The compare will promote the 32 bit int saved value to 64 bit
   and compare it to the full 64 bit counter. Since the top 32 bits of the
   saved value was zero, it would never match.
 
 - Fix a use-after-free of the event_enable trigger
 
   The event_enable trigger allows for enabling one event when another event
   is triggered. When the trigger is removed, it must go through a
   synchronization phase to make sure it is not triggered again. The trigger
   itself is delayed by the "bulk delay" logic that was recently added.
   But the code that frees the event_enable data used to rely on the trigger
   code to do the synchronization. Now that the code uses the call RCU
   functions (and a workqueue), that delay no longer is there.
 
   Add a callback private_data_free() function that allows triggers to clean
   up data after the synchronization phase has completed.
 
 - Move the module_ref counter into the delay callback
 
   Since an event of the event_enable trigger can enable an event for a
   module, it ups the module ref count for that event's module. This prevents
   the event from trying to enable an event that no longer exists and cause a
   use-after-free bug.
 
   The ref counter was set back down when the trigger was removed but not
   after thy synchronization phase. This could lead to the module data being
   accessed after module was unloaded.
 
   Move the module ref decrement into the private_data_free() callback of the
   event_enable trigger.
 
 - Add mutex to protect parser in ftrace filtering
 
   The set_ftrace_filter file uses a parsing descriptor that is allocated at
   open and modified by writes. If multiple threads were to write to the
   descriptor at the same time, it can corrupt the parser.
 
   Add a mutex around the modifications of the parser descriptor.
 
 - Fix possible corruption in perf syscall tracing
 
   The perf system call trace events can now read user space. To do so, the
   reads of user space enable preemption and disables it again. During this
   time that preemption is enabled, the task can migrate. The perf event list
   head is assigned via a per CPU pointer. It is done before the user space
   part is called. If the user space reading migrates the task to another
   CPU, then the head pointer is no longer valid.
 
   Re-assign the head pointer after the reading of user space to keep it
   using the correct data.
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Merge tag 'trace-v7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Move rb_desc->nr_page_va before updating dynamic array

   The rb_descr->page_va is a dynamic array counted by nr_page_va. But
   the updating of the page_va[] is done before the nr_page_va is
   incremented causing a build with CONFIG_UBSAN_BOUNDS to flag it as an
   overflow.

   Move the increment of the counted by value before the array element
   is updated.

 - Propagate errors from remote event bulk updates

   The return value of trace_remote_enable_event() was not being checked
   by remote_events_dir_enable_write() where it would silently fail.
   Have it check the return value and propagate that back up to user
   space.

 - Fix resource leak on mmiotrace trace_pipe close

   The mmiotrace tracer was created in 2008 before the trace_pipe had a
   close callback to allow tracers to do clean up from trace_pipe open.
   The trace_pipe close cleanup callback was added in 2009 but the
   mmiotrace tracer was not updated. It had a hack to do the cleanup in
   the read call, where it may leak if user space did not read the
   entire buffer.

   Add a callback to mmiotrace trace_pipe close do to the cleanup
   properly.

 - Fix a possible NULL pointer dereference in the mmiotrace tracer

   If the mmio_pipe_open() fails to find a PCI device, it will set the
   hiter->dev pointer to NULL. The read function will blindly
   dereference that pointer. Fix the read call to check to see if that
   pointer is populated before dereferencing it.

 - Fix union collision of module and refcnt for dynamic events

   In 'struct trace_event_call', the 'module' pointer and the 'refcnt'
   atomic variable share the same memory space in a union. The filter on
   module logic only checked if the 'module' was set to determine if the
   event belonged to the module. As dynamic events are always builtin,
   it doesn't need the 'module' field of the structure and used a
   refcount. But the module filtering logic would then mistaken these
   dynamic events as a module and call module_name(event->module) on it.

   Add a check to see if the event is a dynamic event and if so, do not
   check it for being part of the given module.

 - Reset the top level buffer in selftests before running instances

   The ftracetest selftest initializes each instance before executing
   the tests. But it does not reset the top level buffer. Dynamic events
   are only added and removed by the top level so any left over dynamic
   events will not be removed by the reset in the instances.

   Left over dynamic events can cause the tests to incorrectly fail.
   Reset the top level buffer before running the instances.

 - Make the context_switch counter 64 bit

   The code to read user space for a system call trace event or for a
   trace_marker will disable migration, enable preemption, read user
   space into a per CPU buffer, disable preemption and enable migration
   again. It checks if the per CPU context switch counter to see if it
   changed, and if it did not, it would know that the per CPU buffer was
   not touched by another task.

   But the save counter was 32 bit and it would compare it to the 64 bit
   context_switch variable. A long running system could have the
   context_switch variable greater that 1<<32 in which case the compare
   will always fail. The compare will promote the 32 bit int saved value
   to 64 bit and compare it to the full 64 bit counter. Since the top 32
   bits of the saved value was zero, it would never match.

 - Fix a use-after-free of the event_enable trigger

   The event_enable trigger allows for enabling one event when another
   event is triggered. When the trigger is removed, it must go through a
   synchronization phase to make sure it is not triggered again. The
   trigger itself is delayed by the "bulk delay" logic that was recently
   added. But the code that frees the event_enable data used to rely on
   the trigger code to do the synchronization. Now that the code uses
   the call RCU functions (and a workqueue), that delay no longer is
   there.

   Add a callback private_data_free() function that allows triggers to
   clean up data after the synchronization phase has completed.

 - Move the module_ref counter into the delay callback

   Since an event of the event_enable trigger can enable an event for a
   module, it ups the module ref count for that event's module. This
   prevents the event from trying to enable an event that no longer
   exists and cause a use-after-free bug.

   The ref counter was set back down when the trigger was removed but
   not after thy synchronization phase. This could lead to the module
   data being accessed after module was unloaded.

   Move the module ref decrement into the private_data_free() callback
   of the event_enable trigger.

 - Add mutex to protect parser in ftrace filtering

   The set_ftrace_filter file uses a parsing descriptor that is
   allocated at open and modified by writes. If multiple threads were to
   write to the descriptor at the same time, it can corrupt the parser.

   Add a mutex around the modifications of the parser descriptor.

 - Fix possible corruption in perf syscall tracing

   The perf system call trace events can now read user space. To do so,
   the reads of user space enable preemption and disables it again.
   During this time that preemption is enabled, the task can migrate.
   The perf event list head is assigned via a per CPU pointer. It is
   done before the user space part is called. If the user space reading
   migrates the task to another CPU, then the head pointer is no longer
   valid.

   Re-assign the head pointer after the reading of user space to keep it
   using the correct data.

* tag 'trace-v7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: perf: Fix stale head for perf syscall tracing
  ftrace: Add global mutex to serialize trace_parser access
  tracing: Delay module ref count for "enable_event" trigger
  tracing: Fix use-after-free freeing trigger private data
  tracing: Fix context switch counter truncation
  selftests/ftrace: Reset triggers at top level before instance loop
  tracing: Fix union collision of module and refcnt for dynamic events
  tracing: Fix mmiotrace possible NULL dereferencing of hiter->dev
  tracing: Fix resource leak on mmiotrace trace_pipe close
  tracing: Propagate errors from remote event bulk updates
  tracing/remotes: Fix page_va[] access before counter update in trace_remote_alloc_buffer()
2026-07-26 09:15:59 -07:00
Linus Torvalds
ae453eef92 BPF fixes:
- Fix tcp_bpf_sendmsg() error path mistaking a concurrently-freed
   sk_psock->cork for the local temporary message and freeing it
   again. (Chengfeng Ye)
 
 - Reject passing scalar NULL to nonnull arg of a global subprog.
   Previously the verifier did not account for the cases directly
   passing scalars to a global subprog, e.g.: 'global_func(0);'
   would pass even if 'global_func' argument was marked nonnull.
   (Amery Hung)
 
 Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Eduard Zingerman:

 - Fix tcp_bpf_sendmsg() error path mistaking a concurrently-freed
   sk_psock->cork for the local temporary message and freeing it again
   (Chengfeng Ye)

 - Reject passing scalar NULL to nonnull arg of a global subprog.

   Previously the verifier did not account for the cases directly
   passing scalars to a global subprog, e.g.: 'global_func(0);' would
   pass even if 'global_func' argument was marked nonnull (Amery Hung)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg()
  selftests/bpf: Test passing scalar NULL to nonnull global subprog
  bpf: Reject passing scalar NULL to nonnull arg of a global subprog
2026-07-24 19:31:12 -07:00
Masami Hiramatsu (Google)
1a087033a6 selftests/ftrace: Reset triggers at top level before instance loop
When running instance tests, 'ftracetest' creates a new ftrace instance
and runs the tests inside it. Before starting each test, it executes
'initialize_system()' to reset the ftrace state to initial-state.

However, since 'initialize_system()' is executed in the context of the
instance directory, it only cleans up triggers and filters of that
instance.
Any triggers or dynamic events left behind in the top-level instance by
previous failed top-level tests, are left completely untouched. These
top-level leftovers can cause subsequent instance-based tests to fail
or even crash the kernel.

Fix this by executing 'initialize_system()' in the top-level tracing
directory once before entering the instance loop.

Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/178425671889.84440.9477850701738666404.stgit@devnote2
Fixes: b5b77be812 ("selftests: ftrace: Allow some tests to be run in a tracing instance")
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-07-24 13:43:18 -04:00
Amery Hung
55c7bd2dde selftests/bpf: Test passing scalar NULL to nonnull global subprog
Make sure the verifier reject passing a hardcoded NULL to an
__arg_nonnull argument.

Signed-off-by: Amery Hung <ameryhung@gmail.com>
Link: https://patch.msgid.link/20260723221815.367797-2-ameryhung@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
2026-07-23 16:09:08 -07:00
Linus Torvalds
d326f83e81 Lots of fixes, double the count even for the "new normal".
Largely due to my time off followed by a networking conference
 which distracted most maintainers (less so the AI generators).
 
 Including fixes from Bluetooth and WiFi.
 
 Current release - regressions:
 
  - wifi: mt76: fix MAC address for non OF pcie cards
 
 Current release - new code bugs:
 
  - mptcp: fix BUILD_BUG_ON on legacy ARM config
 
  - wifi: cfg80211: guard optional PMSR nominal time
 
 Previous releases - regressions:
 
  - qrtr: ns: raise node count limit to 512, we arbitrarily picked
    256 as a limit, turns out it was too low for real world deployments
 
  - vhost-net: fix TX stall when vhost owns virtio-net header
 
  - eth: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN
 
  - wifi: ath12k: fix low MLO RX throughput on WCN7850
 
 Previous releases - always broken:
 
  - number of random AI fixes for SCTP, RDS and TIPC protocols
 
  - more AI-looking fixes for WiFi drivers
 
  - number of fixes for missing pointer reloading after skb pull
 
  - reject BPF redirect use from qdisc qevent block
 
  - tcp: initialize standalone TCP-AO response padding
 
  - vsock/virtio: collapse receive queue under memory pressure to avoid
    client OOMing the host with tiny messages
 
  - ipv4: icmp: fill flow parameters in icmp_route_lookup decoy lookup,
    make sure the ICMP response routing follows the routing policy
 
  - gro: fix double aggregation of flush-marked skbs
 
  - ovpn: fix various refcount bugs
 
  - tls: device: push pending open record on splice EOF
 
  - eth: mlx5:
   - use sender devcom for MPV master-up
   - fix MCIA register buffer overflow on 32 dword reads
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Lots of fixes, double the count even for the 'new normal'. Largely due
  to my time off followed by a networking conference which distracted
  most maintainers (less so the AI generators).

  Including fixes from Bluetooth and WiFi.

  Current release - regressions:

   - wifi: mt76: fix MAC address for non OF pcie cards

  Current release - new code bugs:

   - mptcp: fix BUILD_BUG_ON on legacy ARM config

   - wifi: cfg80211: guard optional PMSR nominal time

  Previous releases - regressions:

   - qrtr: ns: raise node count limit to 512, we arbitrarily picked
     256 as a limit, turns out it was too low for real world deployments

   - vhost-net: fix TX stall when vhost owns virtio-net header

   - eth: amd-xgbe: fix MAC_AUTO_SW handling in CL37 AN

   - wifi: ath12k: fix low MLO RX throughput on WCN7850

  Previous releases - always broken:

   - number of random AI fixes for SCTP, RDS and TIPC protocols

   - more AI-looking fixes for WiFi drivers

   - number of fixes for missing pointer reloading after skb pull

   - reject BPF redirect use from qdisc qevent block

   - tcp: initialize standalone TCP-AO response padding

   - vsock/virtio: collapse receive queue under memory pressure to avoid
     client OOMing the host with tiny messages

   - ipv4: icmp: fill flow parameters in icmp_route_lookup decoy lookup,
     make sure the ICMP response routing follows the routing policy

   - gro: fix double aggregation of flush-marked skbs

   - ovpn: fix various refcount bugs

   - tls: device: push pending open record on splice EOF

   - eth: mlx5:
      - use sender devcom for MPV master-up
      - fix MCIA register buffer overflow on 32 dword reads"

* tag 'net-7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (234 commits)
  drop_monitor: perform u64_stats updates under IRQ-disabled section
  drop_monitor: fix size calculations for 64-bit attributes
  net: drop_monitor: fix info leak in NET_DM_ATTR_PAYLOAD
  mptcp: fix BUILD_BUG_ON on legacy ARM config
  selftests: mptcp: userspace_pm: fix undefined variable port
  mptcp: fix stale skb->sk reference on subflow close
  mptcp: pm: userspace: fix use-after-free in get_local_id
  mptcp: decrement subflows counter on failed passive join
  mac802154: hold an interface reference across the scan worker
  sctp: don't free the ASCONF's own transport in DEL-IP processing
  phonet: check register_netdevice_notifier() error in phonet_device_init()
  phonet: pep: fix use-after-free in pep_get_sb()
  bnge/bng_re: fix ring ID widths
  tipc: fix integer overflow in tipc_recvmsg() and tipc_recvstream()
  net: airoha: fix ETS channel derivation in airoha_tc_setup_qdisc_ets()
  mctp: check register_netdevice_notifier() error in mctp_device_init()
  ptp: netc: explicitly clear TMR_OFF during initialization
  rds: tcp: unregister sysctl before tearing down listen socket
  ipv6: Change allocation flags to match rcu_read_lock section requirements
  net: slip: serialize receive against buffer reallocation
  ...
2026-07-23 12:58:08 -07:00
Geliang Tang
e3213292c4 selftests: mptcp: userspace_pm: fix undefined variable port
In make_connection(), the variable "port" is used but never defined.
This leads to an empty argument being passed to wait_local_port_listen(),
causing "printf: : invalid number" errors:

 # INFO: Init
 # 01 Created network namespaces ns1, ns2                          [ OK ]
 # INFO: Make connections
 # ./../lib.sh: line 651: printf: : invalid number
 # 02 Established IPv4 MPTCP Connection ns2 => ns1                 [ OK ]
 # INFO: Connection info: 10.0.1.2:59516 -> 10.0.1.1:50002
 # ./../lib.sh: line 651: printf: : invalid number
 # 03 Established IPv6 MPTCP Connection ns2 => ns1                 [ OK ]

Fix it by using the correctly defined variable "app_port", which holds the
appropriate port number for the connection.

Fixes: 39348f5f2f ("selftests: mptcp: wait for port instead of sleep")
Cc: stable@vger.kernel.org
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260722-net-mptcp-misc-fixes-7-2-rc5-v1-4-6fb595bc86ef@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23 10:50:38 -07:00
Jakub Kicinski
d73a2e81f3 Included fixes:
* ensure keepalive timestamps are computed using monotonic source
 * avoid UAF in unlock_ovpn() when iterating over release_list
 * fix memleak in selftest tool
 * ensure reference to peer is acquired before scheduling worker
   (which may drop the not-yet-taken ref)
 * fix refcount leak in case of concurrent TX and RX TCP error
 * fix potential refcount unbalance in case of sock release in
   P2P mode
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Merge tag 'ovpn-net-20260720' of https://github.com/OpenVPN/ovpn-net-next

Antonio Quartulli says:

====================
Included fixes:
* ensure keepalive timestamps are computed using monotonic source
* avoid UAF in unlock_ovpn() when iterating over release_list
* fix memleak in selftest tool
* ensure reference to peer is acquired before scheduling worker
  (which may drop the not-yet-taken ref)
* fix refcount leak in case of concurrent TX and RX TCP error
* fix potential refcount unbalance in case of sock release in
  P2P mode

* tag 'ovpn-net-20260720' of https://github.com/OpenVPN/ovpn-net-next:
  ovpn: use monotonic clock for peer keepalive timeouts
  ovpn: fix use after free in unlock_ovpn()
  selftests/net: ovpn: fix getaddrinfo memory leak in ovpn_parse_remote()
  ovpn: hold peer before scheduling keepalive work
  ovpn: fix peer refcount leak in TCP error paths
  ovpn: avoid putting unrelated P2P peer on socket release
====================

Link: https://patch.msgid.link/20260720144131.3657121-1-antonio@openvpn.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23 10:04:17 -07:00
Yuxiang Yang
7bb18355e5 selftests/net: packetdrill: cover RST validation in SYN-RECEIVED
Add packetdrill coverage for the RFC 9293 reset checks on request
sockets in SYN-RECEIVED.  Verify that an exact RST removes the request,
a non-exact in-window RST sends a challenge ACK without removing it,
and an out-of-window RST is silently discarded.

Also cover an RST|ACK with an unacceptable ACK number to ensure RST
sequence validation runs before ACK-field validation.

Signed-off-by: Yuxiang Yang <yangyx22@mails.tsinghua.edu.cn>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260717081443.809393-3-yangyx22@mails.tsinghua.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23 08:27:22 -07:00
Nikolay Aleksandrov
679eb1e32d selftests: net: bridge: test ranges with PVID VLAN
Add a test with PVID VLAN that matches the flags of the VLAN following it
and check if the range is properly dumped. PVID VLAN should be on its own
and all VLANs should be present in the dump.

Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260721140922.682265-3-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22 10:23:18 -07:00
Christian Brauner
58af123ec7 selftests/pidfd: check PIDFD_THREAD survives open_by_handle_at()
Verify that a thread pidfd reopened via open_by_handle_at() still
reports PIDFD_THREAD in F_GETFL.

Signed-off-by: Li Chen <me@linux.beauty>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260716052726.1032092-1-me@linux.beauty
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-07-22 13:55:20 +02:00
Matthieu Baerts (NGI0)
e6ad44a5b1 selftests: netconsole: ignore busywait errors
In these netconsole tests, bash is used with errexit (set -e). It means
that if the busywait timeout, the tests finish without printing an error
message.

It is fine to ignore these errors, because the following validate_xxx
helpers will check the content of the output file, and exit with an
appropriated error message, e.g. FAIL: File was not generated.

Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-7-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:30 -07:00
Matthieu Baerts (NGI0)
c25dd7439f selftests: drv-net: add missing kconfig for psp.py
This psp.py selftest was failing on my side when only using the
drivers/net config file on top of the default one -- the recommended way
to execute selftest targets.

It looks like some kernel config are needed to execute the new tc
commands.

Note that this was not visible on NIPA, because these tests are executed
with the drivers/net/hw ones, combining the two config files, and the hw
one contains the missing ones.

Fixes: 3f74d5bb80 ("selftests/net: Add env for container based tests")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Wei Wang <weibunny@fb.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-6-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:30 -07:00
Matthieu Baerts (NGI0)
3529d75d67 selftests: drv-net: increase timeout
The default timeout is 45 seconds, that's too low for the xdp.py test.

Indeed, this test can take up to 3 minutes with some debug kernel config
on NIPA. Set a timeout to 6 minutes, just to be on the safe side.

Note that the Fixes tag here points to the introduction of the xdp.py
test because I don't know when this test started to take more than 45
seconds. That's OK because a timeout of 6 minutes is not exaggerated.

Fixes: 1cbcb1b28b ("selftests: drv-net: Test XDP_PASS/DROP support")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-5-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:30 -07:00
Matthieu Baerts (NGI0)
61ac7049aa selftests: ovpn: increase timeout
The default timeout is 45 seconds, that's too low for a few ovpn tests.

Indeed, these tests can take up to 50 seconds with some debug kernel
config on NIPA. Set a timeout to 90 seconds, just to be on the safe
side.

Note that the Fixes tag here points to the introduction of the ovpn
tests because I don't know when they started to take more than 45
seconds. That's OK because a timeout of 1.5 minutes is not exaggerated.

Fixes: 959bc330a4 ("testing/selftests: add test tool and scripts for ovpn module")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-4-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:30 -07:00
Matthieu Baerts (NGI0)
90c792681a selftests: ovpn: add IPV6 and VETH configs
They are required to run the selftests:

 - Tests are executed in v4 and v6.

 - Virtual Ethernet are used between the different netns.

This has not been seen on NIPA before, because the 'ovpn' tests are
executed with the 'tcp_ao' ones, merging their config files. These two
kernel config are present in tools/testing/selftests/net/tcp_ao/config.

This issue is visible when only the ovpn config is used on top of the
default one. This is the recommended way to execute selftest targets.

Fixes: 959bc330a4 ("testing/selftests: add test tool and scripts for ovpn module")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Acked-by: Antonio Quartulli <antonio@openvpn.net>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-3-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:30 -07:00
Matthieu Baerts (NGI0)
441a820cce selftests: openvswitch: add config file
The kselftests doc mentions that a config file should be present "if a
test needs specific kernel config options enabled". This selftest
requires some kernel config, but no config file was provided.

We could say that a sub-target could use the parent's config file, but
the kselftests doc doesn't mention anything about that. Plus the
net/openvswitch target is the only net target without a config file.

Here is a new config file, which is a trimmed version of the net one,
with hopefully the minimal required kconfig on top of 'make defconfig'.

The Fixes tag points to the introduction of the net/openvswitch target,
just to help validating this target on stable kernels.

Fixes: 25f16c873f ("selftests: add openvswitch selftest suite")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-2-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:29 -07:00
Matthieu Baerts (NGI0)
f8b1abed73 selftests: af_unix: add USER_NS config
This is required to use unshare(CLONE_NEWUSER).

This has not been seen on NIPA before, because the 'af_unix' tests are
executed with the 'net' ones, merging their config files. USER_NS is
present in tools/testing/selftests/net/config.

This issue is visible when only the af_unix config is used on top of the
default one. This is the recommended way to execute selftest targets.

Fixes: ac011361bd ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-1-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-21 15:01:29 -07:00
Amir Goldstein
9acb102522 selftests/fuse: add ACL_DONT_CACHE regression test
Add a test that reproduces the stale ACL bug fixed by:
  "fs: preserve ACL_DONT_CACHE state in forget_cached_acl()"

A FUSE mount that does not negotiate FUSE_POSIX_ACL initialises inodes
with i_acl = ACL_DONT_CACHE.  Before the fix, calling
forget_all_cached_acls() (e.g. from fuse_update_get_attr() on a
statx(AT_STATX_FORCE_SYNC)) would silently replace ACL_DONT_CACHE with
ACL_NOT_CACHED, enabling the kernel ACL cache.  A subsequent getxattr
would populate the cache, and because fuse_set_acl() skips
forget_all_cached_acls() for !fc->posix_acl, later ACL changes were
not visible to callers — getxattr returned stale data.

The test mounts a minimal libfuse3 lowlevel filesystem (no
FUSE_POSIX_ACL negotiated) and:
  1. Issues two getxattrs — both must reach the daemon, proving
     ACL_DONT_CACHE suppresses caching before any trigger.
  2. Calls statx(AT_STATX_FORCE_SYNC) to trigger forget_all_cached_acls().
  3. Issues another getxattr (populates the cache on a buggy kernel).
  4. Switches the daemon to a different-sized ACL (ACL_B).
  5. Issues a final getxattr — expects ACL_B (44 bytes) and daemon
     call count 4; a buggy kernel returns stale ACL_A (28 bytes).

fuse_acl_cache_test is only built when libfuse3 is detected via
pkg-config.

Christian Brauner <brauner@kernel.org> says:
Changed do_force_statx() to call the statx() libc wrapper instead of
syscall(SYS_statx, ...) as requested by Amir after review feedback from
Luis Henriques, and dropped the now unused <sys/syscall.h> include.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://patch.msgid.link/20260713220932.413004-3-amir73il@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-07-21 22:04:02 +02:00
Linus Torvalds
b4b760b59f RISC-V:
- Avoid redundant allocations when allocating IMSIC page tables
 
 - Apply SBI FWFT LOCK flag only on successful set
 
 - Bound SBI PMU counter mask scan to BITS_PER_LONG, since on RV32
   the PMU SBI start/stop helper can only access 32 PMU counters.
 
 - Skip TLB flush when G-stage PTE becomes valid if the Svvptc
   extension is available.
 
 - Always show Zicbo[m|z|p] block sizes in ONE_REG
 
 - Inject instruction access fault on unmapped guest fetch
 
 - Use raw spinlock for irqs_pending and irqs_pending_mask
 
 - Fix Spectre-v1 in vector register access via ONE_REG
 
 x86:
 
 - Fixes to SEV selftests.
 
 - Once free_nested() did a VMCLEAR of shadow VMCS, there's no need to VMCLEAR it
   again if the kernel is preempted and thread migration happens
 
 - Preserve nested TDP shadow page tables if they are used as roots, instead of
   clearing them unnecessarily
 
 - Fix use of stale data if out-of-memory happens after vendor module reload
 
 - Check for invalid/obsolete root *after* making MMU pages available, because
   the latter can make a page invalid
 
 - Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "RISC-V:

   - Avoid redundant allocations when allocating IMSIC page tables

   - Apply SBI FWFT LOCK flag only on successful set

   - Bound SBI PMU counter mask scan to BITS_PER_LONG, since on RV32 the
     PMU SBI start/stop helper can only access 32 PMU counters.

   - Skip TLB flush when G-stage PTE becomes valid if the Svvptc
     extension is available.

   - Always show Zicbo[m|z|p] block sizes in ONE_REG

   - Inject instruction access fault on unmapped guest fetch

   - Use raw spinlock for irqs_pending and irqs_pending_mask

   - Fix Spectre-v1 in vector register access via ONE_REG

  x86:

   - Fixes to SEV selftests

   - Once free_nested() did a VMCLEAR of shadow VMCS, there's no need to
     VMCLEAR it again if the kernel is preempted and thread migration
     happens

   - Preserve nested TDP shadow page tables if they are used as roots,
     instead of clearing them unnecessarily

   - Fix use of stale data if out-of-memory happens after vendor module
     reload

   - Check for invalid/obsolete root *after* making MMU pages available,
     because the latter can make a page invalid

   - Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Only reset TSC Deadline Timer in apic_timer_expired on KVM_RUN
  KVM: selftests: sev_init2_tests: Derive SEV availability from KVM
  KVM: selftests: sev_smoke_test: Only run VM types the host offers
  KVM: x86/mmu: Fix use-after-free on vendor module reload
  KVM: x86/mmu: Preserve nested TDP shadow page tables if they are used as roots
  KVM: x86: Check for invalid/obsolete root *after* making MMU pages available
  KVM: nVMX: Hide shadow VMCS right after VMCLEAR
  KVM: riscv: Fix Spectre-v1 in vector register access
  RISC-V: KVM: Serialize virtual interrupt pending state updates
  RISC-V: KVM: Inject instruction access fault on unmapped guest fetch
  RISC-V: KVM: Zicbo[m|z|p] block sizes should be always present in ONE_REG
  riscv: kvm: Skip TLB flush when G-stage PTE becomes valid with Svvptc
  KVM: riscv: PMU: Bound counter mask scan to BITS_PER_LONG
  KVM: riscv: SBI FWFT: Apply LOCK flag only on successful set
  RISC-V: KVM: Avoid redundant page-table allocations in ioremap topup
2026-07-21 08:26:21 -07:00
David Woodhouse
f148dd411d KVM: selftests: sev_init2_tests: Derive SEV availability from KVM
The test asserted that the X86_FEATURE_SEV CPUID bit exactly matches
whether KVM offers KVM_X86_SEV_VM.  That is not an invariant: when all
SEV ASIDs are assigned to SEV-SNP, KVM does not offer the SEV VM type
even though CPUID reports SEV, so the test aborts on an SNP-only host.

Derive SEV availability from KVM_CAP_VM_TYPES (as already done for SEV-ES
and SNP), assert only the one-way implication that a type offered by KVM
is also reported in CPUID, and TEST_REQUIRE() the SEV VM type so the test
skips cleanly when it is unavailable.

Reviewed-by: Tycho Andersen (AMD) <tycho@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-ID: <5d3c345113748f39b7982e365d241abaf3e11086.1784545391.git.dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2026-07-21 12:25:27 +02:00
David Woodhouse
cd76ec58be KVM: selftests: sev_smoke_test: Only run VM types the host offers
sev_smoke_test ran the plain SEV subtest unconditionally, gated only on
the X86_FEATURE_SEV CPUID bit, while gating SEV-ES and SNP on the
KVM_CAP_VM_TYPES bits.  CPUID reporting SEV does not mean KVM offers the
SEV VM type: when all SEV ASIDs are assigned to SEV-SNP, KVM_X86_SEV_VM
is unavailable even though X86_FEATURE_SEV is set.  On such a host the
test aborts in KVM_CREATE_VM instead of exercising the available modes.

Gate the SEV subtest on KVM_CAP_VM_TYPES like the others, so the test
runs the VM types the host actually offers.

Reviewed-by: Tycho Andersen (AMD) <tycho@kernel.org>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-ID: <2b5e7a83d277134294199a455469bb436196b902.1784545391.git.dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2026-07-21 12:25:26 +02:00
Daniel Borkmann
f789afed94 selftests/bpf: Add test for redirect from qdisc qevent block
Add a regression test for the NULL current->bpf_net_context deref hit
when a BPF classifier attached to a qdisc qevent block asks for a
redirect. The classifier runs from tcf_qevent_handle() on the qdisc
enqueue path, outside any bpf_net_context.

  # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t qevent
  [...]
  + /etc/rcS.d/S50-startup
  ./test_progs -t qevent
  #496/1   tc_qevent/redirect_verdict:OK
  #496/2   tc_qevent/redirect_helper:OK
  #496     tc_qevent:OK
  Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20260706185609.330006-4-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-20 18:16:43 -07:00
Ricardo B. Marlière
ef01724fa2 selftests/net: Fix tun IPv6 test addresses to avoid 6to4 range
The IPv6 addresses used for the tun_vnet_udptnl fixture currently fall in
the 2002::/16 prefix, which is reserved for the 6to4 transition mechanism
(RFC 3056).

On systems where the sit module is loaded, the kernel automatically claims
2002::/16 as a 6to4 tunnel prefix. When the test assigns a 2002:: address
to a TUN interface, sit registers a competing local route for the same
address. This ambiguity breaks the GENEVE decapsulation path: packets
injected via the TUN fd are not delivered to the test socket, causing the
IPv6-outer gtgso send_gso_packet variants to fail.

Replace all four IPv6 test addresses with addresses from the fd00:db8::/32
range, which is part of the ULA space (fc00::/7, RFC 4193) and carries no
special kernel semantics.

Fixes: 24e59f26ee ("selftest: tun: Add helpers for GSO over UDP tunnel")
Signed-off-by: Ricardo B. Marlière <rbm@suse.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260706-b4-net_tun_addr-v1-1-3d3cb2473560@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-20 17:59:25 -07:00
longlong yan
0bd9cfebc1 selftests/net: ovpn: fix getaddrinfo memory leak in ovpn_parse_remote()
The ovpn_parse_remote() function has two memory management issues:

1. When both 'host' and 'vpnip' are non-NULL, the first getaddrinfo()
   allocation is leaked because 'result' is overwritten by the second
   getaddrinfo() call without freeing the first allocation.

2. When both 'host' and 'vpnip' are NULL, 'result' is an uninitialized
   stack variable passed to freeaddrinfo(), which is undefined behavior.

Fix by initializing 'result' to NULL and calling freeaddrinfo() after
the first getaddrinfo() result is consumed.

Fixes: 959bc330a4 ("testing/selftests: add test tool and scripts for ovpn module")
Signed-off-by: longlong yan <yanlonglong@kylinos.cn>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>
2026-07-20 15:49:55 +02:00
Linus Torvalds
94515f3a7d BPF fixes:
- Fix a UAF in socket clone early bailout paths (Matt Bobrowski)
 
 - Reject unhashed UDP sockets on sockmap update to prevent refcount leaks
   (Michal Luczaj)
 
 - Account for receive queue data in FIONREAD on sockmap sockets without a
   verdict program (Mattia Meleleo)
 
 - Reject negative constant offsets for verifier buffer pointers (Sun Jian)
 
 - Fix for tracing of kfuncs with implicit arguments (Ihor Solodrai)
 
 Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Kumar Kartikeya Dwivedi:

 - Fix a UAF in socket clone early bailout paths (Matt Bobrowski)

 - Reject unhashed UDP sockets on sockmap update to prevent refcount
   leaks (Michal Luczaj)

 - Account for receive queue data in FIONREAD on sockmap sockets without
   a verdict program (Mattia Meleleo)

 - Reject negative constant offsets for verifier buffer pointers (Sun
   Jian)

 - Fix for tracing of kfuncs with implicit arguments (Ihor Solodrai)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Cover tracing implicit kfunc args
  bpf: Fix tracing of kfuncs with implicit args
  selftests/bpf: Cover negative buffer pointer offsets
  bpf: Reject negative const offsets for buffer pointers
  selftests/bpf: Test FIONREAD on a sockmap socket without a verdict program
  bpf, sockmap: Account for receive queue in FIONREAD without a verdict program
  selftests/bpf: Fail unbound UDP on sockmap update
  selftests/bpf: Adapt sockmap update error handling
  bpf, sockmap: Reject unhashed UDP sockets on sockmap update
  selftests/bpf: Ensure UDP sockets are bound
  bpf: Fix UAF in sock clone early bailouts
2026-07-17 12:55:24 -07:00
Linus Torvalds
e13caf1c26 Including fixes from Wireless, IPsec, Netfilter and Bluetooth.
Current release - new code bugs:
 
   - netfilter: flowtable: use correct direction to set up tunnel route
 
 Previous releases - regressions:
 
   - wifi:
     - mac80211:
       - free AP_VLAN bc_buf SKBs outside IRQ lock
       - defer link RX stats percpu free to RCU
       - fix double free on alloc failure
     - cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlock
 
   - ipv4: free fib_alias with kfree_rcu() on insert error path
 
   - sched: act_tunnel_key: Defer dst_release to RCU callback
 
   - xfrm: fix sk_dst_cache double-free in xfrm_user_policy()
 
   - bluetooth: fix locking in unpair_device/disconnect_sync
 
   - can: add locking for raw flags bitfield
 
   - openvswitch: reject oversized nested action attrs
 
   - eth: bnxt_en: handle partially initialized auxiliary devices
 
   - eth: ppp: defer channel free to an RCU grace period to fix UAF
 
 Previous releases - always broken:
 
   -  netfilter: xt_nat: reject unsupported target families
 
   -  wifi:
      - brcmfmac: fix heap overflow on a short auth frame
      - cfg80211: add missing FTM API validation
 
   - xfrm:
     - reject optional IPTFS templates in outbound policies
     - policy: preallocate inexact bins before xfrm_hash_rebuild reinsert
 
   - bluetooth: revalidate LOAD_CONN_PARAM queued update
 
   - can: fix lockless bound/ifindex race and silent RX_SETUP failure
 
   - eth: mlx5: free mlx5_st_idx_data on final dealloc
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from Wireless, IPsec, Netfilter and Bluetooth.

  Current release - new code bugs:

    - netfilter: flowtable: use correct direction to set up tunnel route

  Previous releases - regressions:

    - wifi:
       - mac80211:
          - free AP_VLAN bc_buf SKBs outside IRQ lock
          - defer link RX stats percpu free to RCU
          - fix double free on alloc failure
       - cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlock

    - ipv4: free fib_alias with kfree_rcu() on insert error path

    - sched: act_tunnel_key: Defer dst_release to RCU callback

    - xfrm: fix sk_dst_cache double-free in xfrm_user_policy()

    - bluetooth: fix locking in unpair_device/disconnect_sync

    - can: add locking for raw flags bitfield

    - openvswitch: reject oversized nested action attrs

    - eth:
       - bnxt_en: handle partially initialized auxiliary devices
       - ppp: defer channel free to an RCU grace period to fix UAF

  Previous releases - always broken:

    -  netfilter: xt_nat: reject unsupported target families

    -  wifi:
        - brcmfmac: fix heap overflow on a short auth frame
        - cfg80211: add missing FTM API validation

    - xfrm:
       - reject optional IPTFS templates in outbound policies
       - policy: preallocate inexact bins before xfrm_hash_rebuild reinsert

    - bluetooth: revalidate LOAD_CONN_PARAM queued update

    - can: fix lockless bound/ifindex race and silent RX_SETUP failure

    - eth: mlx5: free mlx5_st_idx_data on final dealloc"

* tag 'net-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
  mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n
  llc: fix SAP refcount leak when creating incoming sockets
  selftests: netconsole: only restore MAC when it changed on resume
  bnxt_en: Handle partially initialized auxiliary devices
  sctp: fix auth_hmacs array size in struct sctp_cookie
  net/sched: act_tunnel_key: Defer dst_release to RCU callback
  dpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()
  tcp: fix TIME_WAIT socket reference leak on PSP policy failure
  net/mlx5: free mlx5_st_idx_data on final dealloc
  can: isotp: serialize TX state transitions under so->rx_lock
  can: isotp: fix use-after-free race with concurrent NETDEV_UNREGISTER
  can: isotp: use unconditional synchronize_rcu() in isotp_release()
  can: bcm: track a single source interface for ANYDEV timeout/throttle ops
  can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler()
  can: bcm: fix stale rx/tx ops after device removal
  can: bcm: add missing device refcount for CAN filter removal
  can: bcm: validate frame length in bcm_rx_setup() for RTR replies
  can: bcm: extend bcm_tx_lock usage for data and timer updates
  can: bcm: add missing rcu list annotations and operations
  can: bcm: fix CAN frame rx/tx statistics
  ...
2026-07-17 10:25:13 -07:00
Ethan Nelson-Moore
f97752cfe5 selftests: ntsync: correct CONFIG_NTSYNC name
The config fragment for these tests defines CONFIG_WINESYNC, which
refers to an earlier name for the ntsync driver before it was merged
[1]. Correct it to define CONFIG_NTSYNC instead.

[1] https://lore.kernel.org/all/f4cc1a38-1441-62f8-47e4-0c67f5ad1d43@codeweavers.com/

Fixes: 7f853a252c ("selftests: ntsync: Add some tests for semaphore state.")
Cc: stable <stable@kernel.org>
Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Reviewed-by: Elizabeth Figura <zfigura@codeweavers.com>
Link: https://patch.msgid.link/20260609175505.19632-1-enelsonmoore@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-17 14:51:16 +02:00
Andre Carvalho
04aeddf2da selftests: netconsole: only restore MAC when it changed on resume
The "mac" bind mode reactivation downs the interface, restores the saved
MAC and renames it to trigger a target resume. This assumes the recreated
interface comes back with a different MAC, which is true under
MACAddressPolicy=none (as on the Netdev CI) but not when MACs are
persistent. In the persistent case netconsole resumes the target on its
own, and the down/restore/rename flow instead drops it and fails the test.

Guard the block on the MAC having actually changed so the test passes
under both policies.

Fixes: 6ecc08329b ("selftests: netconsole: validate target resume")
Reported-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Closes: https://lore.kernel.org/netdev/f398373e-2cb4-4649-a491-9763df94d98b@kernel.org/
Signed-off-by: Andre Carvalho <asantostc@gmail.com>
Tested-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20260710-netcons-mac-reload-v1-1-3fb1bcc70b4a@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-17 13:15:20 +02:00
Kumar Kartikeya Dwivedi
0af15f3057 selftests/bpf: Cover tracing implicit kfunc args
KF_IMPLICIT_ARGS kfuncs have a BPF-call prototype and a real kernel
target prototype. Add a tracing selftest that attaches fentry and fexit
programs to bpf_kfunc_implicit_arg(), runs a syscall BPF program that
calls it, and checks that the tracing context exposes both the explicit
argument and the implicit prog aux pointer.

Co-developed-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://patch.msgid.link/20260713235223.1639022-3-ihor.solodrai@linux.dev
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
2026-07-16 16:11:29 -07:00
Linus Torvalds
481ed5dd3e Landlock fix for v7.2-rc4
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Merge tag 'landlock-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock fix from Mickaël Salaün:
 "This fixes TCP Fast Open support, specific test environments, and doc
  warnings"

* tag 'landlock-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/landlock: Skip scoped_signal subtest with MSG_OOB if not available
  selftests/landlock: Fix screwed up pointers in the scoped_signal_test
  landlock: Update formatting
  landlock: Fix kernel-doc for the nested quiet layer flag
  selftests/landlock: Add test for TCP fast open
  landlock: Fix TCP Fast Open connection bypass
2026-07-16 13:22:17 -07:00
Linus Torvalds
c270a4218b Arm:
- Fix an accounting buglet when reclaiming pages from a protected guest
 
 - Fix a bunch of architectural compliance issues when injecting a
   synthesised exception, most of which were missing the PSTATE.IL bit
   indicating a 32bit-wide instruction
 
 - Another set of fixes addressing issues with translation of VNCR_EL2,
   including corner cases where the guest point that register at a RO
   page...
 
 - Don't warn when trapping accesses to ZCR_EL2 from an L2 guest, as
   that's not unexpected at all
 
 - Address a bunch of races with LPI migration vs LPIs being disabled
 
 - Fix a total howler of a bug combining FEAT_MOPS and NV, resulting in
   exception returning in the wrong place...
 
 - Move locking for kvm_io_bus_get_dev() into the caller, ensuring
   race-free checks that the returned object is of the correct type
 
 - Fix initialisation of the page-table walk level when relaxing
   permissions
 
 - Correctly update the XN attribute when relaxing permissions
 
 - Fix the sign extension of loads from emulated MMIO regions
 
 - Assorted collection of fixes for pKVM's FFA proxy, together with a
   couple of FFA driver adjustments
 
 - Coerce Fuad Tabba into a reviewer role, and may his Inbox catch fire!
 
 s390:
 
 - more gmap KVM memory management fixes
 
 - PCI passthru fixes
 
 x86:
 
 - Fix a bug where KVM will trigger a UAF if updating IOMMU IRTEs fails when
   registering an IRQ-bypass producer.
 
 - Ignore pending PV EOI instead of BUG()ing the host if the feature was
   disabled by the guest.
 
 - Fix nVMX bugs where KVM would run L1 with an L1-controlled CR3 after a
   failed "late" consistency check when KVM is NOT using EPT.
 
 - Disallow intra-host migration/mirroring of SNP VMs as KVM doesn't yet
   support moving/mirroring SNP state.
 
 - Fix a TOCTOU bug in KVM's handling of the "trusted" CPUID for TDX guests.
 
 - Fix a NULL pointer deref in trace_kvm_inj_exception() where a change to the
   core infrastructure missed KVM's unique (ab)use of __print_symbolic().
 
 - Put vmcs12 pages if nested VM-Enter fails due to invalid guest state
 
 - Fix TLB conflicts between two VMs if one of them VM is run on a CPU before
   and after it is hotplugged.
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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 an accounting buglet when reclaiming pages from a protected
     guest

   - Fix a bunch of architectural compliance issues when injecting a
     synthesised exception, most of which were missing the PSTATE.IL bit
     indicating a 32bit-wide instruction

   - Another set of fixes addressing issues with translation of
     VNCR_EL2, including corner cases where the guest point that
     register at a RO page...

   - Don't warn when trapping accesses to ZCR_EL2 from an L2 guest, as
     that's not unexpected at all

   - Address a bunch of races with LPI migration vs LPIs being disabled

   - Fix a total howler of a bug combining FEAT_MOPS and NV, resulting
     in exception returning in the wrong place...

   - Move locking for kvm_io_bus_get_dev() into the caller, ensuring
     race-free checks that the returned object is of the correct type

   - Fix initialisation of the page-table walk level when relaxing
     permissions

   - Correctly update the XN attribute when relaxing permissions

   - Fix the sign extension of loads from emulated MMIO regions

   - Assorted collection of fixes for pKVM's FFA proxy, together with a
     couple of FFA driver adjustments

   - Coerce Fuad Tabba into a reviewer role, and may his Inbox catch
     fire!

  s390:

   - more gmap KVM memory management fixes

   - PCI passthru fixes

  x86:

   - Fix a bug where KVM will trigger a UAF if updating IOMMU IRTEs
     fails when registering an IRQ-bypass producer

   - Ignore pending PV EOI instead of BUG()ing the host if the feature
     was disabled by the guest

   - Fix nVMX bugs where KVM would run L1 with an L1-controlled CR3
     after a failed "late" consistency check when KVM is NOT using EPT

   - Disallow intra-host migration/mirroring of SNP VMs as KVM doesn't
     yet support moving/mirroring SNP state

   - Fix a TOCTOU bug in KVM's handling of the "trusted" CPUID for TDX
     guests

   - Fix a NULL pointer deref in trace_kvm_inj_exception() where a
     change to the core infrastructure missed KVM's unique (ab)use of
     __print_symbolic()

   - Put vmcs12 pages if nested VM-Enter fails due to invalid guest
     state

   - Fix TLB conflicts between two VMs if one of them VM is run on a CPU
     before and after it is hotplugged"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (48 commits)
  KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug
  KVM: nVMX: Put vmcs12 pages if nested VM-Enter fails due to invalid guest state
  KVM: x86: Fix null pointer deref due to dummy array in trace_kvm_inj_exception()
  KVM: TDX: Reject concurrent change to CPUID entry count
  KVM: selftests: Verify SNP VMs are rejected from migration and mirroring
  KVM: SEV: Do not allow intra-host migration/mirroring of SNP VMs
  KVM: s390: pci: Fix handling of AIF enable without AISB
  KVM: s390: Improve kvm_s390_vm_stop_migration()
  KVM: s390: Fix dat_crste_walk_range() early return
  KVM: s390: vsie: Avoid potential deadlock with real spaces
  KVM: s390: pci: Fix GISC refcount leak on AIF enable failure
  KVM: nVMX: Don't use vmcs01.GUEST_CR3 to snapshot L1's CR3 when EPT is disabled
  KVM: nVMX: Move vTPR vs. TPR Threshold consistency check into "normal" checks
  KVM: x86: Ignore pending PV EOI if the vCPU has since disabled PV EOIs
  KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails
  KVM: arm64: Fix propagation of TLBI level in kvm_pgtable_stage2_relax_perms()
  firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation
  firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit()
  KVM: arm64: Zero out the stack initialized data in the FFA handler
  KVM: arm64: Ensure FFA ranges are page aligned
  ...
2026-07-16 07:25:13 -07:00
Linus Torvalds
e144887d3a linux_kselftest-fixes-7.2-rc4
Fixes ftrace reading enabled_func test in add_remove_fprobe_module test.
 Fixes tracing trigger-hist-poll.tc to use sched_process_exit.
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Merge tag 'linux_kselftest-fixes-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:

 - Fix ftrace reading enabled_func test in add_remove_fprobe_module test

 - Fix tracing trigger-hist-poll.tc to use sched_process_exit

* tag 'linux_kselftest-fixes-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/tracing: Have trigger-hist-poll.tc use sched_process_exit
  selftests/ftrace: Fix reading enabled_functions in add_remove_fprobe_module test
2026-07-15 15:37:11 -07:00
Paolo Bonzini
37694e5dd0 KVM x86 fixes for 7.2-rcN
- Fix a bug where KVM will trigger a UAF if updating IOMMU IRTEs fails when
    registering an IRQ-bypass producer.
 
  - Ignore pending PV EOI instead of BUG()ing the host if the feature was
    disabled by the guest.
 
  - Fix nVMX bugs where KVM would run L1 with an L1-controlled CR3 after a
    failed "late" consistency check when KVM is NOT using EPT.
 
  - Disallow intra-host migration/mirroring of SNP VMs as KVM doesn't yet
    support moving/mirroring SNP state.
 
  - Fix a TOCTOU bug in KVM's handling of the "trusted" CPUID for TDX guests.
 
  - Fix a NULL pointer deref in trace_kvm_inj_exception() where a change to the
    core infrastructure missed KVM's unique (ab)use of __print_symbolic().
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Merge tag 'kvm-x86-fixes-7.2-rc4' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fixes for 7.2-rcN

 - Fix a bug where KVM will trigger a UAF if updating IOMMU IRTEs fails when
   registering an IRQ-bypass producer.

 - Ignore pending PV EOI instead of BUG()ing the host if the feature was
   disabled by the guest.

 - Fix nVMX bugs where KVM would run L1 with an L1-controlled CR3 after a
   failed "late" consistency check when KVM is NOT using EPT.

 - Disallow intra-host migration/mirroring of SNP VMs as KVM doesn't yet
   support moving/mirroring SNP state.

 - Fix a TOCTOU bug in KVM's handling of the "trusted" CPUID for TDX guests.

 - Fix a NULL pointer deref in trace_kvm_inj_exception() where a change to the
   core infrastructure missed KVM's unique (ab)use of __print_symbolic().
2026-07-15 12:15:17 +02:00
Paolo Bonzini
15f8ba7806 KVM/arm64 fixes for 7.2, take #2
- Move locking for kvm_io_bus_get_dev() into the caller, ensuring
   race-free checks that the returned object is of the correct type
 
 - Fix initialisation of the page-table walk level when relaxing
   permissions
 
 - Correctly update the XN attribute when relaxing permissions
 
 - Fix the sign extension of loads from emulated MMIO regions
 
 - Assorted collection of fixes for pKVM's FFA proxy, together with a
   couple of FFA driver adjustments
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Merge tag 'kvmarm-fixes-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 7.2, take #2

- Move locking for kvm_io_bus_get_dev() into the caller, ensuring
  race-free checks that the returned object is of the correct type

- Fix initialisation of the page-table walk level when relaxing
  permissions

- Correctly update the XN attribute when relaxing permissions

- Fix the sign extension of loads from emulated MMIO regions

- Assorted collection of fixes for pKVM's FFA proxy, together with a
  couple of FFA driver adjustments
2026-07-15 12:13:30 +02:00
Sun Jian
6f59deb32e selftests/bpf: Cover negative buffer pointer offsets
Add verifier coverage for constant negative offsets on PTR_TO_TP_BUFFER
and PTR_TO_BUF pointers. Both programs adjust the buffer pointer by -8
and access it at offset zero, so the negative effective start must be
rejected at load time.

Switch the raw tracepoint writable attach checks from nbd_send_request
to bpf_testmod_test_writable_bare_tp, avoiding a dependency on the NBD
tracepoint. Keep the existing past-end case and add a case with a
negative var_off compensated by a positive instruction offset. The
effective start remains non-negative, so the program loads, but its
access end exceeds the writable context size and
bpf_raw_tracepoint_open() must return -EINVAL.

Cc: stable@vger.kernel.org # 5.2.0
Signed-off-by: Sun Jian <sun.jian.kdev@gmail.com>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Link: https://patch.msgid.link/20260714093846.18159-3-sun.jian.kdev@gmail.com
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
2026-07-15 02:33:18 -07:00
Mattia Meleleo
a42f05cc4c
selftests/bpf: Test FIONREAD on a sockmap socket without a verdict program
Add a test validating that FIONREAD on a TCP socket in a sockmap
without a verdict program reports data pending in sk_receive_queue.

Signed-off-by: Mattia Meleleo <mattia.meleleo@coralogix.com>
Reviewed-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20260708-fionread-no-verdict-v3-2-b4ee31b3af53@coralogix.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-07-15 11:10:14 +02:00
Michal Luczaj
203b069327
selftests/bpf: Fail unbound UDP on sockmap update
sockmap now rejects unbound UDP sockets. Adjust test_maps. While at it,
check socket()'s return value.

This effectively reverts commit c39aa21599 ("bpf, selftests: Fix
test_maps now that sockmap supports UDP").

Signed-off-by: Michal Luczaj <mhal@rbox.co>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20260707-sockmap-lookup-udp-leak-v4-4-f878346f27ab@rbox.co
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-07-15 10:34:15 +02:00
Michal Luczaj
30581eda4a
selftests/bpf: Adapt sockmap update error handling
Update sockmap_listen to accommodate the recent change in sockmap that
rejects unbound UDP sockets.

TCP: Reject unbound and bound (unless established or listening).
UDP: Accept only bound sockets.

While at it, migrate to ASSERT_* and enforce reverse xmas tree.

Signed-off-by: Michal Luczaj <mhal@rbox.co>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20260707-sockmap-lookup-udp-leak-v4-3-f878346f27ab@rbox.co
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-07-15 10:34:14 +02:00
Michal Luczaj
fe3ff27376
selftests/bpf: Ensure UDP sockets are bound
Update sockmap_basic tests to bind sockets before they are used. This
accommodates the recent change in sockmap that rejects unbound UDP sockets.

Signed-off-by: Michal Luczaj <mhal@rbox.co>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20260707-sockmap-lookup-udp-leak-v4-1-f878346f27ab@rbox.co
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
2026-07-15 10:34:13 +02:00
Linus Torvalds
58717b2a13 A collection of small fixes. All are device-specific fixes (including
regression fixes) or quirks accumulated since the last update.
 Some highlights:
 
 * USB-audio:
 - Fix per-channel volume imbalance regression for sticky mixers
 - Validate input packet length in caiaq driver
 - Quirks for iBasso DC-Elite, Musical Fidelity M6s DAC, and Redragon
   H510-PRO Wireless headset
 
 * HD-audio:
 - Fix a long-standing bug of cached processing coefficient verbs
 - Make cs35l56 driver failing with missing firmware
 - Fix cirrus codec Kconfig dependency, update MAINTAINERS
 - Remove unneeded mic bias threshold override on Conexant
 - Realtek codec quirks for ASUS ROG Ally X (headphone & mic), Dell
   QCM1255, Legion Pro 7, HP/Victus laptops, Framework, and TongFang
   laptops
 
 * ASoC:
 - Add Eliza audio support on Qualcomm sc8280xp/sm8250 SoCs
 - Fix SDCA linker error with ACP on AMD
 - A few fixes for AMD ACP PCI driver
 - Add TAS2783 support on AMD ACP 7.0 platforms
 - Reset RT712-SDCA codec to fix silent headphone issue
 - Soft reset S/PDIF datapath on Meson AIU FIFO
 - Jack report fix for cs42l43
 - TAS2562 shutdown GPIO clearing fix
 - Sidecar amps quirk for Lenovo laptop in SOF SDW driver
 
 * Misc:
 - Drop redundant mod_devicetable.h includes from FireWire drivers
 - Fix memory leak and format mismatch in mixer kselftest
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Merge tag 'sound-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. All are device-specific fixes (including
  regression fixes) or quirks accumulated since the last update. Some
  highlights:

  USB-audio:
   - Fix per-channel volume imbalance regression for sticky mixers
   - Validate input packet length in caiaq driver
   - Quirks for iBasso DC-Elite, Musical Fidelity M6s DAC, and Redragon
     H510-PRO Wireless headset

  HD-audio:
   - Fix a long-standing bug of cached processing coefficient verbs
   - Make cs35l56 driver failing with missing firmware
   - Fix cirrus codec Kconfig dependency, update MAINTAINERS
   - Remove unneeded mic bias threshold override on Conexant
   - Realtek codec quirks for ASUS ROG Ally X (headphone & mic), Dell
     QCM1255, Legion Pro 7, HP/Victus laptops, Framework, and TongFang
     laptops

  ASoC:
   - Add Eliza audio support on Qualcomm sc8280xp/sm8250 SoCs
   - Fix SDCA linker error with ACP on AMD
   - A few fixes for AMD ACP PCI driver
   - Add TAS2783 support on AMD ACP 7.0 platforms
   - Reset RT712-SDCA codec to fix silent headphone issue
   - Soft reset S/PDIF datapath on Meson AIU FIFO
   - Jack report fix for cs42l43
   - TAS2562 shutdown GPIO clearing fix
   - Sidecar amps quirk for Lenovo laptop in SOF SDW driver

  Misc:
   - Drop redundant mod_devicetable.h includes from FireWire drivers
   - Fix memory leak and format mismatch in mixer kselftest"

* tag 'sound-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (36 commits)
  ALSA: usb-audio: Add delay quirk for iBasso DC-Elite
  ALSA: hda: conexant: Remove mic bias threshold override
  ALSA: hda/realtek: Fix speakers on Legion Pro 7 16ARX8H with codec SSID 17aa:38a7
  ALSA: hda/realtek: Fix speakers on MECHREVO WUJIE Series
  ALSA: hda: cs35l56: Fail if wmfw file is missing
  ALSA: usb-audio: Skip DSD quirk for Musical Fidelity M6s DAC
  ALSA: hda: MAINTAINERS: Fix missing cirrus* file reference
  ALSA: hda/cirrus_scodec: Make Kconfig visible if KUNIT
  ALSA: hda/realtek: Add quirk for TongFang X6xx45xU
  ALSA: hda/realtek - Fixed Headphone noise issue for Dell QCM1255
  ASoC: tas2562: fix deprecated 'shut-down' GPIO always cleared after lookup
  ASoC: cs42l43: Correct report for forced microphone jack
  ASoC: qcom: sc8280xp: Add support for Eliza
  ASoC: dt-bindings: qcom,sm8250: Add Eliza sound card
  ASoC: dt-bindings: qcom: Add Eliza LPASS macro codecs
  ALSA: hda/realtek: Add mic mute LED quirk for HP Laptop 15-fd0xxx
  ALSA: hda/realtek - Add quirk for HP Victus 15-fa0xxx (MB 8A50)
  ALSA: usb-audio: Add quirk for Redragon H510-PRO Wireless headset
  ASoC: amd: ps: replace bitwise OR with logical OR in IRQ return check
  ASoC: amd: ps: fix wrong ACP version string in pci_request_regions()
  ...
2026-07-14 09:18:19 -07:00
Linus Torvalds
f7574d3f90 sched_ext: Fixes for v7.2-rc3
- Lifecycle fixes for the new sub-scheduler support: two use-after-frees
   and an enable-failure path that left a half-initialized sub-scheduler
   linked.
 
 - Two dispatch-path locking bugs: a spurious scheduler abort from a
   migration race, and a lockdep splat from stale runqueue-lock tracking.
 
 - Callback and task-state fixes: stale scheduler-owned state on a task
   leaving SCX, a weight callback running after disable, and a bogus
   warning on core-scheduling forced idle.
 
 - On nohz_full, finite-slice tasks could miss the tick that expires their
   slice. Enable it when such a task is picked, with a selftest.
 
 - Smaller fixes: userspace CPU-mask helpers, ratelimited deprecation
   warnings, docs and a sparse annotation.
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Merge tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Lifecycle fixes for the new sub-scheduler support: two
   use-after-frees and an enable-failure path that left a
   half-initialized sub-scheduler linked.

 - Two dispatch-path locking bugs: a spurious scheduler abort from a
   migration race, and a lockdep splat from stale runqueue-lock
   tracking.

 - Callback and task-state fixes: stale scheduler-owned state on a task
   leaving SCX, a weight callback running after disable, and a bogus
   warning on core-scheduling forced idle.

 - On nohz_full, finite-slice tasks could miss the tick that expires
   their slice. Enable it when such a task is picked, with a selftest.

 - Smaller fixes: userspace CPU-mask helpers, ratelimited deprecation
   warnings, docs and a sparse annotation.

* tag 'sched_ext-for-7.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Skip ops.set_weight() for disabled tasks
  tools/sched_ext: scx - Fix cmask_subset(), cmask_equal() and cmask_weight()
  sched_ext: Fix premature ops->priv publication in scx_alloc_and_add_sched()
  sched_ext: Record an error on errno-only sub-enable failure
  selftests/sched_ext: Verify nohz_full tick behavior
  sched_ext: Enable tick for finite slices on nohz_full
  sched_ext: Preserve rq tracking across local DSQ dispatch
  sched_ext: Documentation: Fix ops table header reference
  sched_ext: Don't warn on core-sched forced idle in put_prev_task_scx()
  sched_ext: Pin parent scx_sched across a child sub-scheduler's lifetime
  sched_ext: Annotate ksyncs with __rcu in alloc/free_kick_syncs()
  sched_ext: Check remote rq eligibility under task's rq lock
  sched_ext: Reset dsq_vtime and slice when a task leaves SCX
  sched_ext: Avoid flooding the log with deprecation warnings
2026-07-13 15:55:17 -07:00
Linus Torvalds
2f9eb0c54a RISC-V updates for v7.2-rc3
- 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
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Merge tag 'riscv-for-linus-7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

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()
2026-07-12 11:25:40 -07:00
Linus Torvalds
6205562c59 tracing fixes for 7.2:
- 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.
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Merge tag 'trace-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

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
2026-07-12 09:46:37 -07:00
Linus Torvalds
d96fcfe1b7 arm64 fixes for -rc3
- 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.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

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
2026-07-10 09:59:55 -07:00
Linus Torvalds
f827c27e57 gpio fixes for v7.2-rc3
- 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
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Merge tag 'gpio-fixes-for-v7.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

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
2026-07-10 09:36:25 -07:00
Steven Rostedt
c5c413534d selftests/tracing: Have trigger-hist-poll.tc use sched_process_exit
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>
2026-07-10 10:14:42 -06:00
Steven Rostedt
22a78be412 selftests/ftrace: Fix reading enabled_functions in add_remove_fprobe_module test
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>
2026-07-10 10:14:42 -06:00
Atish Patra
df371f2c62 KVM: selftests: Verify SNP VMs are rejected from migration and mirroring
Migration and mirroring of SEV-SNP VMs are not supported yet.

Add two selftests that verify KVM rejects intra-host migration and
mirroring when the source VM is an SNP VM, so the restriction stays enforced
until proper SNP state transfer is implemented.

Signed-off-by: Atish Patra <atishp@meta.com>
Link: https://patch.msgid.link/20260602-sev_snp_fixes-v3-2-24bfd3ae047c@meta.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2026-07-10 09:00:21 -07:00