From 4fa706a4a64f9e06b08c1a42a62893ff2f7de82f Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 16 Apr 2012 18:26:49 +0200 Subject: [PATCH] svq3: check the watermark height. Fixes division by 0 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/svq3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index 31187713da..c35138b8bc 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -906,7 +906,7 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx) int offset = (get_bits_count(&gb)+7)>>3; uint8_t *buf; - if ((uint64_t)watermark_width*4 > UINT_MAX/watermark_height) + if (watermark_height<=0 || (uint64_t)watermark_width*4 > UINT_MAX/watermark_height) return -1; buf = av_malloc(buf_len);