From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Sun, 16 Mar 2025 21:15:04 +0000 (+0100)
Subject: crypto: essiv - Replace memcpy() + NUL-termination with strscpy()
X-Git-Tag: v6.15-rc1~118^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fdd305803bc1eb59c300503fb37911330692ef69;p=thirdparty%2Fkernel%2Flinux.git

crypto: essiv - Replace memcpy() + NUL-termination with strscpy()

Use strscpy() to copy the NUL-terminated string 'p' to the destination
buffer instead of using memcpy() followed by a manual NUL-termination.

No functional changes intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/essiv.c b/crypto/essiv.c
index 1c00c3324058c..ec0ec8992c2da 100644
--- a/crypto/essiv.c
+++ b/crypto/essiv.c
@@ -405,8 +405,7 @@ static bool parse_cipher_name(char *essiv_cipher_name, const char *cra_name)
 	if (len >= CRYPTO_MAX_ALG_NAME)
 		return false;
 
-	memcpy(essiv_cipher_name, p, len);
-	essiv_cipher_name[len] = '\0';
+	strscpy(essiv_cipher_name, p, len + 1);
 	return true;
 }