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perf header: Sanity check HEADER_GROUP_DESC
authorArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 10 Apr 2026 22:09:00 +0000 (19:09 -0300)
committerNamhyung Kim <namhyung@kernel.org>
Tue, 14 Apr 2026 06:21:53 +0000 (23:21 -0700)
commit6830e20c92e7388ae4834a3574a0d3d90500c4c1
tree4e47300054b06633146c50c296f82f805da21dc1tree | snapshot
parentf613a6d694aa499edb2a291ab2c2d906619585f2commit | diff
perf header: Sanity check HEADER_GROUP_DESC

Add upper bound check on nr_groups in process_group_desc() to harden
against malformed perf.data files (max 32768), and move the env
assignment after validation.

Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Assisted-by: Claude Code:claude-opus-4-6
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
tools/perf/util/header.c diff | blob | blame | history
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