[FFmpeg-devel] [PATCH 2/4] avformat/concatdec: Check filename length before use

Nicolas George george at nsup.org
Thu Oct 29 17:09:57 EET 2020

Michael Niedermayer (12020-10-28):
> Fixes: out array read
> Fixes: 26610/clusterfuzz-testcase-minimized-ffmpeg_dem_CONCAT_fuzzer-5631838049271808
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavformat/concatdec.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

This is not the first time such a fix is proposed. If strcmp() does not
behave intelligently, then we need an extra function for the task, but
duplicating the test all over the place is not a good idea.


  Nicolas George
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