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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-30 16:58:41 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-08-12 22:26:02 +0300 |
| commit | 57fc032ad643ffd018d66bd4c1bd3a91de4841e8 (patch) | |
| tree | 71938498bb43106c0cf37f93f6dddcb118350df5 /tools/perf/perf.c | |
| parent | 272172bd418cc32aa466588150c8001bc229c712 (diff) | |
| download | linux-57fc032ad643ffd018d66bd4c1bd3a91de4841e8.tar.xz | |
perf session: Avoid infinite loop when seeing invalid header.size
Vince reported that when fuzzing the userland perf tool with a bogus
perf.data file he got into a infinite loop in 'perf report'.
Changing the return of fetch_mmaped_event() to ERR_PTR(-EINVAL) for that
case gets us out of that infinite loop.
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190726211415.GE24867@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/perf.c')
0 files changed, 0 insertions, 0 deletions