From: Michael Niedermayer <michael@niedermayer.cc>
Date: Sat, 7 Nov 2015 19:05:27 +0000 (+0100)
Subject: avcodec/takdec: Use memove, avoid undefined memcpy() use
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=7cea3430a56fb0ff6ef60f08620fd3875e7bfeb6;p=ffmpeg

avcodec/takdec: Use memove, avoid undefined memcpy() use

Fixes: e214333cbd94c91228e624ff39329ce6/asan_generic_4a5159_6412_96cda2530e80607210ab41ccae3d456d.tak

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---

diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
index e5c07239406..dc0449e57d3 100644
--- a/libavcodec/takdec.c
+++ b/libavcodec/takdec.c
@@ -645,7 +645,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length)
                 *p1++ = v;
             }
 
-            memcpy(s->residues, &s->residues[tmp], 2 * filter_order);
+            memmove(s->residues, &s->residues[tmp], 2 * filter_order);
         }
 
         emms_c();