From 0a59055167eea3087a36d9091501d3bb52ed8ebe Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 24 Jan 2014 16:46:43 +0100 Subject: [PATCH] avcodec/mpeg12dec: check for overread in mpeg1_fast_decode_block_inter() No speedloss meassured Signed-off-by: Michael Niedermayer --- libavcodec/mpeg12dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index 91346bf52b..a4ff5d6925 100644 --- a/libavcodec/mpeg12dec.c +++ b/libavcodec/mpeg12dec.c @@ -335,7 +335,7 @@ static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, int16_t *bloc } block[j] = level; - if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF) + if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF || i >= 64) break; UPDATE_CACHE(re, &s->gb); }