From 1fb46858c2498c67ae2d6775f7da29732e88fb8a Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 16 May 2014 03:02:57 +0200 Subject: [PATCH] avcodec/cavs: prevent out of array read The used value should not matter as long as its within the array as it is multiplied by 0 Signed-off-by: Michael Niedermayer --- libavcodec/cavs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c index c5313eb19c..888f38ba68 100644 --- a/libavcodec/cavs.c +++ b/libavcodec/cavs.c @@ -525,7 +525,7 @@ void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type) static inline void scale_mv(AVSContext *h, int *d_x, int *d_y, cavs_vector *src, int distp) { - int den = h->scale_den[src->ref]; + int den = h->scale_den[FFMAX(src->ref, 0)]; *d_x = (src->x * distp * den + 256 + (src->x >> 31)) >> 9; *d_y = (src->y * distp * den + 256 + (src->y >> 31)) >> 9;