From 145f12d12dc83c737676883c625c2a95d34251ed Mon Sep 17 00:00:00 2001
From: Pauli <ppzgs1@gmail.com>
Date: Wed, 17 Mar 2021 11:41:48 +1000
Subject: modes: fix coverity 1449860: overlapping memory copy

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14584)
---
 crypto/modes/cbc128.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'crypto/modes/cbc128.c')

diff --git a/crypto/modes/cbc128.c b/crypto/modes/cbc128.c
index 9ac9299f65..86dd781c55 100644
--- a/crypto/modes/cbc128.c
+++ b/crypto/modes/cbc128.c
@@ -69,7 +69,8 @@ void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out,
         in += 16;
         out += 16;
     }
-    memcpy(ivec, iv, 16);
+    if (ivec != iv)
+        memcpy(ivec, iv, 16);
 }
 
 void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
-- 
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