cifs: Use kzfree() to zero out the password

[ Upstream commit 478228e57f ]

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 Greg Kroah-Hartman
parent 16764d7486
commit 3571c9bb01

View file

@ -2567,7 +2567,7 @@ 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;
}