Fixes: Timeout (18sec -> 0.4sec) Fixes: 17585/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION1_fuzzer-5117015135617024
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/truemotion1.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c index bcfe473852..b6481cbd7c 100644 --- a/libavcodec/truemotion1.c +++ b/libavcodec/truemotion1.c @@ -444,6 +444,8 @@ static int truemotion1_decode_header(TrueMotion1Context *s) if (s->flags & FLAG_KEYFRAME) { /* no change bits specified for a keyframe; only index bytes */ s->index_stream = s->mb_change_bits; + if (s->avctx->width * s->avctx->height / 2048 + header.header_size > s->size) + return AVERROR_INVALIDDATA; } else { /* one change bit per 4x4 block */ s->index_stream = s->mb_change_bits + -- 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".
