Probes fixes for v7.2-rc5:

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- tracing/probes: Reject $arg0 in meta argument expansion
   Reject $arg0 during meta-argument expansion to prevent negative index
   calculation and out-of-bounds reading of traceprobe parameters.
 
 - tracing/fprobe: Roll back on enable_trace_fprobe() failure
   Add a rollback cleanup path when __register_trace_fprobe() fails
   partway through to unregister registered probes and clear flags or
   file links.
 
 - fprobe: Fix module reference count leak on error in register_fprobe()
   Ensure the module_put() cleanup loop runs even when get_ips_from_filter()
   returns an error, preventing module reference count leaks.
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Merge tag 'probes-fixes-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes fixes from Masami Hiramatsu:

 - Reject $arg0 during meta-argument expansion to prevent negative index
   calculation and out-of-bounds reading of traceprobe parameters

 - Roll back on enable_trace_fprobe() failure

   Add a rollback cleanup path when __register_trace_fprobe() fails
   partway through to unregister registered probes and clear flags or
   file links

 - Fix module reference count leak on error in register_fprobe()

   Ensure the module_put() cleanup loop still runs even when
   get_ips_from_filter() returns an error, preventing module
   reference count leaks

* tag 'probes-fixes-v7.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  fprobe: Fix module reference count leak on error in register_fprobe()
  tracing/fprobe: Roll back on enable_trace_fprobe() failure
  tracing/probes: Reject $arg0 in meta argument expansion

...

This commit is contained in:

Linus Torvalds 2026-07-29 17:02:11 -07:00

parent fc46aed51f 8cf2f40ceb

commit 11028ab628

3 changed files with 18 additions and 6 deletions

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6

kernel/trace/fprobe.c

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12

kernel/trace/trace_fprobe.c

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6

kernel/trace/trace_probe.c

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