Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: [email protected]
---
libavcodec/vp3.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 0211537..a269dc3 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);
}
--
1.7.9.4
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