cifs: Use kzfree() to zero out the password

[ 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.carpenter@oracle.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2019-08-27 13:59:17 +03:00 committed by prashantpaddune
parent 6a6779f984
commit b5bf50896f

View File

@ -2586,7 +2586,7 @@ 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;
}