Fixes: read of uninitialized memory Fixes: 391916474/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-4935250956845056
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, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 0eed13d850d..184e97256cd 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -491,7 +491,9 @@ static int klv_read_packet(MXFContext *mxf, KLVPacket *klv, AVIOContext *pb) return AVERROR_INVALIDDATA; memcpy(klv->key, mxf_klv_key, 4); - avio_read(pb, klv->key + 4, 12); + int ret = ffio_read_size(pb, klv->key + 4, 12); + if (ret < 0) + return ret; length = klv_decode_ber_length(pb, &llen); if (length < 0) return length; -- 2.50.1 _______________________________________________ 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".
