Fixes: Assertion failure Fixes: 17640/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5708767475269632
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/shortendec.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libavformat/shortendec.c b/libavformat/shortendec.c index a2879dc5a3..f7390b2e62 100644 --- a/libavformat/shortendec.c +++ b/libavformat/shortendec.c @@ -40,12 +40,18 @@ static int shn_probe(const AVProbeData *p) channels = get_ur_golomb_shorten(&gb, 0); blocksize = 256; } else { - int k; + unsigned k; k = get_ur_golomb_shorten(&gb, 2); + if (k > 31) + return 0; internal_ftype = get_ur_golomb_shorten(&gb, k); k = get_ur_golomb_shorten(&gb, 2); + if (k > 31) + return 0; channels = get_ur_golomb_shorten(&gb, k); k = get_ur_golomb_shorten(&gb, 2); + if (k > 31) + return 0; blocksize = get_ur_golomb_shorten(&gb, k); } -- 2.23.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
