ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | Sun May 31 14:30:43 2020 +0200| [39806a275eb287c39fba7283d1b40dd0e72018bd] | committer: Michael Niedermayer
avformat/mlvdec: fail reading a packet with 0 streams Fixes: NULL pointer dereference Fixes: 22604/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5667739074297856.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 5bd5c3108786bf69f108c55c375f1956f67ca7a4) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=39806a275eb287c39fba7283d1b40dd0e72018bd --- libavformat/mlvdec.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavformat/mlvdec.c b/libavformat/mlvdec.c index 84b916844c..0ed0cb11a2 100644 --- a/libavformat/mlvdec.c +++ b/libavformat/mlvdec.c @@ -384,10 +384,14 @@ static int read_packet(AVFormatContext *avctx, AVPacket *pkt) { MlvContext *mlv = avctx->priv_data; AVIOContext *pb; - AVStream *st = avctx->streams[mlv->stream_index]; + AVStream *st; int index, ret; unsigned int size, space; + if (!avctx->nb_streams) + return AVERROR_EOF; + + st = avctx->streams[mlv->stream_index]; if (mlv->pts >= st->duration) return AVERROR_EOF; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
