[FFmpeg-cvslog] avformat/sbgdec: clamp end_ts
Michael Niedermayer
git at videolan.org
Sat Sep 24 20:22:48 EEST 2022
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Sep 18 16:29:37 2022 +0200| [981f5e46afa3673dfa43eb2bf5017680d5df25dd] | committer: Michael Niedermayer
avformat/sbgdec: clamp end_ts
Fixes: signed integer overflow: 9223372036851135042 + 15666854 cannot be represented in type 'long'
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_SBG_fuzzer-6573717339111424
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=981f5e46afa3673dfa43eb2bf5017680d5df25dd
---
libavformat/sbgdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/sbgdec.c b/libavformat/sbgdec.c
index 8a6d679056..4cd12347e7 100644
--- a/libavformat/sbgdec.c
+++ b/libavformat/sbgdec.c
@@ -1478,7 +1478,7 @@ static int sbg_read_packet(AVFormatContext *avf, AVPacket *packet)
int ret;
ts = ffstream(avf->streams[0])->cur_dts;
- end_ts = ts + avf->streams[0]->codecpar->frame_size;
+ end_ts = av_sat_add64(ts, avf->streams[0]->codecpar->frame_size);
if (avf->streams[0]->duration != AV_NOPTS_VALUE)
end_ts = FFMIN(avf->streams[0]->start_time + avf->streams[0]->duration,
end_ts);
More information about the ffmpeg-cvslog
mailing list