From 96357894ff9ac019edced85d51cf4a509c12116c Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 3 Oct 2014 19:33:01 +0200 Subject: [PATCH] avcodec/cinepak: fix integer underflow Fixes out of array access Fixes: asan_heap-oob_4da0ba_6_asan_heap-oob_4da0ba_241_cvid_crash.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer (cherry picked from commit e7e5114c506957f40aafd794e06de1a7e341e9d5) Signed-off-by: Michael Niedermayer --- libavcodec/cinepak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c index 082d0b232a..d0d07bc9ef 100644 --- a/libavcodec/cinepak.c +++ b/libavcodec/cinepak.c @@ -135,7 +135,7 @@ static int cinepak_decode_vectors (CinepakContext *s, cvid_strip *strip, const uint8_t *eod = (data + size); uint32_t flag, mask; uint8_t *cb0, *cb1, *cb2, *cb3; - unsigned int x, y; + int x, y; char *ip0, *ip1, *ip2, *ip3; flag = 0;