ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Tue May 2 01:46:31 2023 +0200| [94b083010558627a9a40f2acadb2e8d6a23f98af] | committer: Michael Niedermayer
avformat/oggparsetheora: clip duration within 64bit Fixes: signed integer overflow: 9079256848778919936 - -288230376151711746 cannot be represented in type 'long' Fixes: 58248/clusterfuzz-testcase-minimized-ffmpeg_dem_OGG_fuzzer-6326851353313280 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 b1c3d81e71f78e4b3b2c2901ac4649cb74aec272) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=94b083010558627a9a40f2acadb2e8d6a23f98af --- libavformat/oggparsetheora.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/oggparsetheora.c b/libavformat/oggparsetheora.c index d1064e4328..293d2928b5 100644 --- a/libavformat/oggparsetheora.c +++ b/libavformat/oggparsetheora.c @@ -196,7 +196,7 @@ static int theora_packet(AVFormatContext *s, int idx) if(s->streams[idx]->start_time == AV_NOPTS_VALUE && os->lastpts != AV_NOPTS_VALUE) { s->streams[idx]->start_time = os->lastpts; if (s->streams[idx]->duration > 0) - s->streams[idx]->duration -= s->streams[idx]->start_time; + s->streams[idx]->duration = av_sat_sub64(s->streams[idx]->duration, s->streams[idx]->start_time); } } _______________________________________________ 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".
