Fixes: signed integer overflow: 393215 * 14594 cannot be represented in type 'int' Fixes: 15728/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5661588893204480
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/vc1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index e102b931d8..0790eb160e 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -453,8 +453,8 @@ static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb) } else { av_reduce(&v->s.avctx->sample_aspect_ratio.num, &v->s.avctx->sample_aspect_ratio.den, - v->s.avctx->height * w, - v->s.avctx->width * h, + v->s.avctx->height * (int64_t)w, + v->s.avctx->width * (int64_t)h, 1 << 30); } ff_set_sar(v->s.avctx, v->s.avctx->sample_aspect_ratio); -- 2.22.0 _______________________________________________ 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".
