Fixes: null pointer dereference Fixes: 385644864/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4551049565765632
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/iff.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/iff.c b/libavformat/iff.c index 38f90dd81cb..7142a06e98f 100644 --- a/libavformat/iff.c +++ b/libavformat/iff.c @@ -364,6 +364,9 @@ static int read_dst_frame(AVFormatContext *s, AVPacket *pkt) uint64_t chunk_pos, data_pos, data_size; int ret = AVERROR_EOF; + if (s->nb_streams < 1) + return AVERROR_INVALIDDATA; + while (!avio_feof(pb)) { chunk_pos = avio_tell(pb); if (chunk_pos >= iff->body_end) -- 2.48.1 _______________________________________________ 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".
