Fixes: Out of array access Fixes: 37030/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5387719147651072
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mxfdec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 55f2e5c767..ebe411b04d 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -552,6 +552,10 @@ static int mxf_get_d10_aes3_packet(AVIOContext *pb, AVStream *st, AVPacket *pkt, data_ptr = pkt->data; end_ptr = pkt->data + length; buf_ptr = pkt->data + 4; /* skip SMPTE 331M header */ + + if (st->codecpar->channels > 8) + return AVERROR_INVALIDDATA; + for (; end_ptr - buf_ptr >= st->codecpar->channels * 4; ) { for (i = 0; i < st->codecpar->channels; i++) { uint32_t sample = bytestream_get_le32(&buf_ptr); -- 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".
