Fixes: Infinite loop Fixes: 19183/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MVHA_fuzzer-5666216765292544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/mvha.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mvha.c b/libavcodec/mvha.c index 4b03a79283..c270063b1c 100644 --- a/libavcodec/mvha.c +++ b/libavcodec/mvha.c @@ -203,6 +203,9 @@ static int decode_frame(AVCodecContext *avctx, for (int i = 0; i < s->nb_symbols; symbol++) { int prob; + if (get_bits_left(gb) < 4) + return AVERROR_INVALIDDATA; + if (get_bits1(gb)) { prob = get_bits(gb, 12); } else { -- 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".
