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perf header: Sanity check HEADER_BPF_PROG_INFO
authorArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 10 Apr 2026 22:09:04 +0000 (19:09 -0300)
committerNamhyung Kim <namhyung@kernel.org>
Tue, 14 Apr 2026 06:21:53 +0000 (23:21 -0700)
commit66af7e9b05c4e7ff435c0aef0d253a65d290f03c
treecbf92981daf556757e252db251e5b866ad12e1f1tree | snapshot
parentf5722a6b6a443fd56ce0a71b4be4c75d7a857dbecommit | diff
perf header: Sanity check HEADER_BPF_PROG_INFO

Add validation to process_bpf_prog_info() to harden against malformed
perf.data files:

- Upper bound on BPF program count (max 131072)
- Upper bound on per-program data_len (max 256MB)

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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