Use memmove instead of memcpy for overlapping memory

CID 251047 251094

OK beck@ jsing@ millert@ tb@

1 files changed, 3 insertions, 3 deletions

diff --git a/src/lib/libcrypto/modes/cbc128.c b/src/lib/libcrypto/modes/cbc128.c
index fe45103b0c..c5cf5a632d 100644
--- a/src/lib/libcrypto/modes/cbc128.c
+++ b/src/lib/libcrypto/modes/cbc128.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cbc128.c,v 1.4 2015/02/10 09:46:30 miod Exp $ */
+/* $OpenBSD: cbc128.c,v 1.5 2022/01/22 00:45:17 inoguchi Exp $ */
 /* ====================================================================
  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
  *
@@ -110,7 +110,7 @@ void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out,
                 in  += 16;
                 out += 16;
         }
-        memcpy(ivec,iv,16);
+        memmove(ivec,iv,16);
 }
 
 void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
@@ -148,7 +148,7 @@ void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
                                 out += 16;
                         }
                 }
-                memcpy(ivec,iv,16);
+                memmove(ivec,iv,16);
         } else {
                 if (STRICT_ALIGNMENT &&
                     ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(size_t) != 0) {