ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sun Sep 24 12:58:42 2017 +0200| [ec683ed527cef9aad208d1daeb10d0e7fb63e75e] | committer: Sean McGovern
smacker: fix integer overflow with pts_inc Bug-Id: 1073 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Sean McGovern <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ec683ed527cef9aad208d1daeb10d0e7fb63e75e --- libavformat/smacker.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavformat/smacker.c b/libavformat/smacker.c index 56c909bc06..304e746a91 100644 --- a/libavformat/smacker.c +++ b/libavformat/smacker.c @@ -117,6 +117,11 @@ static int smacker_read_header(AVFormatContext *s) smk->height = avio_rl32(pb); smk->frames = avio_rl32(pb); smk->pts_inc = (int32_t)avio_rl32(pb); + if (smk->pts_inc > INT_MAX / 100) { + av_log(s, AV_LOG_ERROR, "pts_inc %d is too large\n", smk->pts_inc); + return AVERROR_INVALIDDATA; + } + smk->flags = avio_rl32(pb); if(smk->flags & SMACKER_FLAG_RING_FRAME) smk->frames++; _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
