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| author | Samuel Moelius <sam.moelius@trailofbits.com> | 2026-06-28 13:10:22 +0000 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2026-07-28 07:18:50 -0400 |
| commit | 693dc27c5286cb0fd0d8cf18c3ee924b22154e92 (patch) | |
| tree | a149ea565928de5bf236ce5da557ed6ad3dc7966 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 73301fb81a17dbf198a5bf6cdaefa3611232b88e (diff) | |
tracing: Reject invalid preemptirq_delay_test CPU affinity
preemptirq_delay_test accepts cpu_affinity as a module parameter and,
when it is non-negative, writes that CPU directly into a temporary
cpumask from the worker thread. Values outside nr_cpu_ids can set a bit
outside the allocated cpumask before the test reports a normal affinity
error.
Validate the requested CPU in preemptirq_delay_run() before setting it
in the temporary cpumask. Invalid affinity requests are reported by
the test thread and skipped before cpumask_set_cpu() can touch an
out-of-range bit.
Link: https://patch.msgid.link/20260628131021.2208632.6a5c6c959813.preemptirq-delay-test-invalid-cpu-affinity@trailofbits.com
Assisted-by: Codex:gpt-5.5-cyber-preview
Signed-off-by: Samuel Moelius <sam.moelius@trailofbits.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions