ffmpeg | branch: master | Andreas Cadhalpun <andreas.cadhal...@googlemail.com> | Sun Oct 23 16:48:01 2016 +0200| [9d36602abc4ef5b69b92feadf868c77e5e9ccc7d] | committer: Andreas Cadhalpun
mov: validate sidx timescale A negative timescale doesn't make sense and triggers assertions in av_rescale_rnd. Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d36602abc4ef5b69b92feadf868c77e5e9ccc7d --- libavformat/mov.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index 5fb345a..f06de06 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4247,6 +4247,11 @@ static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom) timescale = av_make_q(1, avio_rb32(pb)); + if (timescale.den <= 0) { + av_log(c->fc, AV_LOG_ERROR, "Invalid sidx timescale 1/%d\n", timescale.den); + return AVERROR_INVALIDDATA; + } + if (version == 0) { pts = avio_rb32(pb); offset += avio_rb32(pb); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
