ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@gmail.com> | Mon Jul 20 22:44:42 2020 +0200| [5aafdb4e5fe3ca8a0d8b16498caf5899a8d68e2c] | committer: Andreas Rheinhardt
avformat/rmdec: Fix potential crash on allocation failure The RealMedia demuxer uses the priv_data of its streams to store a structure containing an AVPacket. These packets are unreferenced in the read_close function, yet said function simply presumed that the priv_data has been successfully allocated. This implies that it mustn't be called when an allocation of priv_data fails; but this can happen since commit 35bbc1955a58ba74552c50d9161084644f00bbd3 if one has a stream with multiple substreams (also exported as AVStream) and if allocating the priv_data for one of these substreams fails. This has been fixed by making sure that read_close can handle the case in which priv_data has not been successfully allocated. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5aafdb4e5fe3ca8a0d8b16498caf5899a8d68e2c --- libavformat/rmdec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index 6851b7e1f4..72b8dba741 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -115,6 +115,9 @@ RMStream *ff_rm_alloc_rmstream (void) void ff_rm_free_rmstream (RMStream *rms) { + if (!rms) + return; + av_packet_unref(&rms->pkt); } _______________________________________________ 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".
