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| author | Leo Yan <leo.yan@linaro.org> | 2021-04-20 17:15:53 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-23 20:34:32 +0200 |
| commit | b14585d9f18dc617e975815570fe836be656b1da (patch) | |
| tree | 6d3dc1e9cb3ba131bb140ffce7150d28483fd51b /crypto/gf128mul.c | |
| parent | perf data: Fix error return code in perf_data__create_dir() (diff) | |
| download | linux-b14585d9f18dc617e975815570fe836be656b1da.tar.xz linux-b14585d9f18dc617e975815570fe836be656b1da.zip | |
perf auxtrace: Fix potential NULL pointer dereference
In the function auxtrace_parse_snapshot_options(), the callback pointer
"itr->parse_snapshot_options" can be NULL if it has not been set during
the AUX record initialization. This can cause tool crashing if the
callback pointer "itr->parse_snapshot_options" is dereferenced without
performing NULL check.
Add a NULL check for the pointer "itr->parse_snapshot_options" before
invoke the callback.
Fixes: d20031bb63dd6dde ("perf tools: Add AUX area tracing Snapshot Mode")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: http://lore.kernel.org/lkml/20210420151554.2031768-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'crypto/gf128mul.c')
0 files changed, 0 insertions, 0 deletions