Probes fixes for v6.17

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- tracing: Fix race condition in kprobe initialization causing NULL
   pointer dereference. This happens on weak memory model, which
   does not correctly manage the flags access with appropriate
   memory barriers. Use RELEASE-ACQUIRE to fix it.
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Merge tag 'probes-fixes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probe fix from Masami Hiramatsu:

 - Fix race condition in kprobe initialization causing NULL pointer
   dereference. This happens on weak memory model, which does not
   correctly manage the flags access with appropriate memory barriers.
   Use RELEASE-ACQUIRE to fix it.

* tag 'probes-fixes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix race condition in kprobe initialization causing NULL pointer dereference

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This commit is contained in:

Linus Torvalds 2025-10-05 08:16:20 -07:00

parent 6093a688a0 9cf9aa7b0a

commit 2cd14dff16

4 changed files with 28 additions and 14 deletions

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10

kernel/trace/trace_fprobe.c

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11

kernel/trace/trace_kprobe.c

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9

kernel/trace/trace_probe.h

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12

kernel/trace/trace_uprobe.c

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