Various parts of the code assume that width can be divided by various powers of 2 without rounding
Fixes: out of array access Fixes: 53623/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQC_fuzzer-6209269924233216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/vqcdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/vqcdec.c b/libavcodec/vqcdec.c index 18cd99462e..c3bce87974 100644 --- a/libavcodec/vqcdec.c +++ b/libavcodec/vqcdec.c @@ -71,6 +71,9 @@ static av_cold int vqc_decode_init(AVCodecContext * avctx) static AVOnce init_static_once = AV_ONCE_INIT; VqcContext *s = avctx->priv_data; + if (avctx->width & 15) + return AVERROR_PATCHWELCOME; + s->vectors = av_malloc((avctx->width * avctx->height * 3) / 2); if (!s->vectors) return AVERROR(ENOMEM); -- 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".
