ffmpeg | branch: master | Luca Barbato <lu_z...@gentoo.org> | Mon Apr 17 14:10:52 2017 +0000| [279e3aaa14daba6b7a37d75f3fb6e29c732d123f] | committer: Luca Barbato
flv: Validate the packet size Size can be negative at that point. Bug-Id: 1041 CC: libav-sta...@libav.org > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=279e3aaa14daba6b7a37d75f3fb6e29c732d123f --- libavformat/flvdec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c index 693c859ebf..1b29740f41 100644 --- a/libavformat/flvdec.c +++ b/libavformat/flvdec.c @@ -912,6 +912,12 @@ skip: st->codecpar->codec_id == AV_CODEC_ID_H264) { int type = avio_r8(s->pb); size--; + + if (size < 0) { + ret = AVERROR_INVALIDDATA; + goto leave; + } + if (st->codecpar->codec_id == AV_CODEC_ID_H264) { // sign extension int32_t cts = (avio_rb24(s->pb) + 0xff800000) ^ 0xff800000; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
