Fixes: Fixes infinite loop Fixes: 26704/clusterfuzz-testcase-minimized-ffmpeg_dem_MPC8_fuzzer-6327056939614208
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mpc8.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c index ae5cbc0cbf..96a03ed4fd 100644 --- a/libavformat/mpc8.c +++ b/libavformat/mpc8.c @@ -178,6 +178,10 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off) av_add_index_entry(s->streams[0], pos, i, 0, 0, AVINDEX_KEYFRAME); } for(; i < size; i++){ + if (get_bits_left(&gb) < 13) { + av_free(buf); + return; + } t = get_unary(&gb, 1, 33) << 12; t += get_bits(&gb, 12); if(t & 1) -- 2.17.1 _______________________________________________ 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".
