[PATCH 4.19 53/79] cifs: Use kzfree() to zero out the password

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpen...@oracle.com>

[ Upstream commit 478228e57f81f6cb60798d54fc02a74ea7dd267e ]

It's safer to zero out the password so that it can never be disclosed.

Fixes: 0c219f5799c7 ("cifs: set domainName when a domain-key is used in 
multiuser")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Steve French <stfre...@microsoft.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 fs/cifs/connect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 75727518b272a..c290e231f9188 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2876,7 +2876,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses 
*ses)
                        rc = -ENOMEM;
                        kfree(vol->username);
                        vol->username = NULL;
-                       kfree(vol->password);
+                       kzfree(vol->password);
                        vol->password = NULL;
                        goto out_key_put;
                }
-- 
2.20.1