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| author | Leo Yan <[email protected]> | 2021-04-20 15:15:53 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2021-04-23 18:34:32 +0000 |
| commit | b14585d9f18dc617e975815570fe836be656b1da (patch) | |
| tree | 6d3dc1e9cb3ba131bb140ffce7150d28483fd51b /tools/perf/util/python.c | |
| parent | perf data: Fix error return code in perf_data__create_dir() (diff) | |
| download | kernel-b14585d9f18dc617e975815570fe836be656b1da.tar.gz kernel-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 <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tiezhu Yang <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/util/python.c')
0 files changed, 0 insertions, 0 deletions