ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Thu Jul 4 00:16:49 2019 +0200| [9ffa32b81bede1dbb167dfceb48fe605b27a0890] | committer: Michael Niedermayer
avcodec/huffyuvdec: Check vertical subsampling in hymt Fixes: out of array access Fixes: 15484/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5765377054736384 Fixes: 15559/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HYMT_fuzzer-5710295743332352 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9ffa32b81bede1dbb167dfceb48fe605b27a0890 --- libavcodec/huffyuvdec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/huffyuvdec.c b/libavcodec/huffyuvdec.c index 771481fd03..46dcfa8235 100644 --- a/libavcodec/huffyuvdec.c +++ b/libavcodec/huffyuvdec.c @@ -1252,6 +1252,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, slice_height = AV_RL32(avpkt->data + buf_size - 8); nb_slices = AV_RL32(avpkt->data + buf_size - 12); if (nb_slices * 8LL + slices_info_offset > buf_size - 16 || + s->chroma_v_shift || slice_height <= 0 || nb_slices * (uint64_t)slice_height > height) return AVERROR_INVALIDDATA; } else { _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
