From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A0DEC49ED7 for ; Thu, 19 Sep 2019 22:20:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50E5721907 for ; Thu, 19 Sep 2019 22:20:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568931643; bh=tzPSHXoVYrM17REt73DsfUFl6A91aQSGj8oWbHWsNXM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jUGWBQkaipUre8trtivvi7IlP//DDUWTorKsQ5shF4RTzZ6MeqxDyiEkDrDWVMKP3 fPLyIN+Yzbs2XU1JYBhnq6jecDlak8CPregbSYHy0UfFHm3YQrbT70c5a9ohaf9Fe8 3npqYELfcDRWyjD7+FlOsEmdCj7PL+iu6H/d6mY4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389383AbfISWUm (ORCPT ); Thu, 19 Sep 2019 18:20:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:34794 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733248AbfISWUl (ORCPT ); Thu, 19 Sep 2019 18:20:41 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5C47A20678; Thu, 19 Sep 2019 22:20:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568931640; bh=tzPSHXoVYrM17REt73DsfUFl6A91aQSGj8oWbHWsNXM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zZC7ADbK1fQxvRa/2bntUVAwuuXmxIzvCCws4WM7GNsmNbCvpNC4G8IE2vQSS8M86 hBFNekZZI3F9noZ2Lp4I00aOwqZNaOeKn9xfHtOPUsmh6v8rZs/I2m2gzlfbj9rfPO tM7sJwDz259h12qVUP/VNw+/kHaT7dDapjSJ4+AA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Steve French , Sasha Levin Subject: [PATCH 4.9 60/74] cifs: Use kzfree() to zero out the password Date: Fri, 20 Sep 2019 00:04:13 +0200 Message-Id: <20190919214810.410180508@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190919214800.519074117@linuxfoundation.org> References: <20190919214800.519074117@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter [ 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 Signed-off-by: Steve French Signed-off-by: Sasha Levin --- 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 2a199f4b663bf..e43ba6db2bdd6 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -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; } -- 2.20.1