Fixes: Timeout (>10sec -> instantaneous) Fixes: 30147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5549246684200960
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/mv30.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/mv30.c b/libavcodec/mv30.c index 7ae264e0f0..c92048a179 100644 --- a/libavcodec/mv30.c +++ b/libavcodec/mv30.c @@ -411,6 +411,8 @@ static int decode_intra(AVCodecContext *avctx, GetBitContext *gb, AVFrame *frame mgb = *gb; if (get_bits_left(gb) < s->mode_size * 8) return AVERROR_INVALIDDATA; + if (get_bits_left(&mgb) < (avctx->height + 15)/16 * ((avctx->width + 15)/16) * 12) + return AVERROR_INVALIDDATA; skip_bits_long(gb, s->mode_size * 8); -- 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".
