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| author | David Carlier <devnexen@gmail.com> | 2026-02-14 07:32:05 +0000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-02-16 21:01:18 -1000 |
| commit | cabd76bbc03617e55c25f0b06167aa5e0b911a36 (patch) | |
| tree | 9859a1e8daf39945445ddf154b33dd6088313590 /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 0b82cc331d2e23537670878c62c19ee3f4147a93 (diff) | |
tools/sched_ext: scx_flatcg: fix potential stack overflow from VLA in fcg_read_stats
fcg_read_stats() had a VLA allocating 21 * nr_cpus * 8 bytes on the
stack, risking stack overflow on large CPU counts (nr_cpus can be up
to 512).
Fix by using a single heap allocation with the correct size, reusing
it across all stat indices, and freeing it at the end.
Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions