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Message-Id: <20190919214806.407908148@linuxfoundation.org>
Date: Fri, 20 Sep 2019 00:03:51 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
Steve French <stfrench@...rosoft.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 36/59] cifs: Use kzfree() to zero out the password
From: Dan Carpenter <dan.carpenter@...cle.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.carpenter@...cle.com>
Signed-off-by: Steve French <stfrench@...rosoft.com>
Signed-off-by: Sasha Levin <sashal@...nel.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 699e763ea671a..f523a9ca9574f 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2662,7 +2662,7 @@ 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
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