[FFmpeg-cvslog] avformat/rmdec: Check codec_data_size
Michael Niedermayer
git at videolan.org
Sat Dec 20 02:47:08 CET 2014
ffmpeg | branch: release/2.4 | Michael Niedermayer <michaelni at gmx.at> | Wed Dec 3 20:01:18 2014 +0100| [117dcc209796eaec36da0fdeb82ae05c22de5c61] | committer: Michael Niedermayer
avformat/rmdec: Check codec_data_size
Fixes infinite loop
Fixes Ticket4154
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit a6f730730b82645a9d31aad0968487cb77d6946c)
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=117dcc209796eaec36da0fdeb82ae05c22de5c61
---
libavformat/rmdec.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index 5d9c9b5..d7f7b93 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -312,6 +312,9 @@ ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVIOContext *pb,
int64_t codec_pos;
int ret;
+ if (codec_data_size < 0)
+ return AVERROR_INVALIDDATA;
+
avpriv_set_pts_info(st, 64, 1, 1000);
codec_pos = avio_tell(pb);
v = avio_rb32(pb);
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