From: Wang Ming <machel@vivo.com>
Date: Mon, 17 Jul 2023 09:45:19 +0000 (+0800)
Subject: s390/crypto: use kfree_sensitive() instead of kfree()
X-Git-Tag: v6.6.7~2318^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1f7e9067756cac5b44b9701bbe0bb83e93011e47;p=platform%2Fkernel%2Flinux-starfive.git

s390/crypto: use kfree_sensitive() instead of kfree()

key might contain private part of the key, so better use
kfree_sensitive() to free it.

Signed-off-by: Wang Ming <machel@vivo.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230717094533.18418-1-machel@vivo.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---

diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index d29a9d9..3834915 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -103,7 +103,7 @@ static inline void _free_kb_keybuf(struct key_blob *kb)
 {
 	if (kb->key && kb->key != kb->keybuf
 	    && kb->keylen > sizeof(kb->keybuf)) {
-		kfree(kb->key);
+		kfree_sensitive(kb->key);
 		kb->key = NULL;
 	}
 }