ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Wed Feb 10 23:21:53 2021 +0100| [7a2aa5dc2af6c4fc66aaedd341b0886fbc746f0d] | committer: Michael Niedermayer
avformat/r3d: Check samples before computing duration Fixes: signed integer overflow: -4611686024827895807 + -4611686016279904256 cannot be represented in type 'long' Fixes: 30161/clusterfuzz-testcase-minimized-ffmpeg_dem_R3D_fuzzer-5694406713802752 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7a2aa5dc2af6c4fc66aaedd341b0886fbc746f0d --- libavformat/r3d.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavformat/r3d.c b/libavformat/r3d.c index 606ed010d6..9de0fb52c7 100644 --- a/libavformat/r3d.c +++ b/libavformat/r3d.c @@ -325,7 +325,8 @@ static int r3d_read_reda(AVFormatContext *s, AVPacket *pkt, Atom *atom) pkt->stream_index = 1; pkt->dts = dts; - if (st->codecpar->sample_rate) + + if (st->codecpar->sample_rate && samples > 0) pkt->duration = av_rescale(samples, st->time_base.den, st->codecpar->sample_rate); av_log(s, AV_LOG_TRACE, "pkt dts %"PRId64" duration %"PRId64" samples %d sample rate %d\n", pkt->dts, pkt->duration, samples, st->codecpar->sample_rate); _______________________________________________ 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".
