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

Signed-off-by: Wang Ming <machel@vivo.com>
---
 arch/s390/crypto/paes_s390.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index d29a9d908797..38349150c96e 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;
 	}
 }
-- 
2.25.1

On 2023-07-17 11:45, Wang Ming wrote:
> key might contain private part of the key, so better use
> kfree_sensitive to free it.
> 
> Signed-off-by: Wang Ming <machel@vivo.com>
> ---
>  arch/s390/crypto/paes_s390.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/s390/crypto/paes_s390.c 
> b/arch/s390/crypto/paes_s390.c
> index d29a9d908797..38349150c96e 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;
>  	}
>  }

Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>

On Mon, Jul 17, 2023 at 05:45:19PM +0800, Wang Ming wrote:
> key might contain private part of the key, so better use
> kfree_sensitive to free it.
> 
> Signed-off-by: Wang Ming <machel@vivo.com>
> ---
>  arch/s390/crypto/paes_s390.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.