From 08b520636e96ba6888b669b9b3f4c414631ea1d2 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 15 Nov 2015 01:22:31 +0100 Subject: [PATCH] avcodec/takdec: Skip last p2 sample (which is unused) Fixes out of array read Fixes: cb3f38b08b4541523974667c7d1eee9e/asan_heap-oob_2659e18_9838_021fd5cd635bf76cede6398cd9ecbcdd.tak Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/takdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index dc0449e57d..d057e0a1cb 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -621,7 +621,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length) for (; length2 > 0; length2 -= tmp) { tmp = FFMIN(length2, x); - for (i = 0; i < tmp; i++) + for (i = 0; i < tmp - (tmp == length2); i++) s->residues[filter_order + i] = *p2++ >> dshift; for (i = 0; i < tmp; i++) {