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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2026-04-10 19:09:05 -0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2026-04-13 23:21:53 -0700 |
| commit | dff56bdafae8e65d9acb88cc98e1f5129c352201 (patch) | |
| tree | e8c214710e2a3741131e6da21e27e5064b4212d3 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 66af7e9b05c4e7ff435c0aef0d253a65d290f03c (diff) | |
perf header: Add sanity checks to HEADER_BPF_BTF processing
Validate the BTF entry count and individual data sizes when reading
HEADER_BPF_BTF from perf.data files to prevent excessive memory
allocation from malformed files.
Reuses the MAX_BPF_PROGS (131072) and MAX_BPF_DATA_LEN (256 MB)
limits from HEADER_BPF_PROG_INFO processing.
Cc: Song Liu <song@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.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>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions