From 6fc8226e29055858f28973bb3d27b63b3b65e616 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Storsj=C3=B6?= Date: Thu, 12 Sep 2013 12:27:58 +0300 Subject: [PATCH] vp3: Check the framerate for validity MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org Signed-off-by: Martin Storsjö --- libavcodec/vp3.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index 0211537eb5..a269dc3320 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -2199,6 +2199,10 @@ static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb) fps.num = get_bits_long(gb, 32); fps.den = get_bits_long(gb, 32); if (fps.num && fps.den) { + if (fps.num < 0 || fps.den < 0) { + av_log(avctx, AV_LOG_ERROR, "Invalid framerate\n"); + return AVERROR_INVALIDDATA; + } av_reduce(&avctx->time_base.num, &avctx->time_base.den, fps.den, fps.num, 1<<30); }