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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 339FDC432C0 for ; Wed, 27 Nov 2019 20:57:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0ADA0215B2 for ; Wed, 27 Nov 2019 20:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574888244; bh=2tfT+JNrdVWZ+oMRcmgZUtHbBrEltXM0CPEOcEo0S8Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ErmE5nl81jaQ9j3iQCUFnYjfbPukoXzS0mKqBrB2Kax2U5tbZgGete9xQhQB66D2B 0pRpe0RNWZLri2FpuPMBUgYUGzJvZsIDpjMG/01GXhhLGb1VOTppmSEVypmOz1BFwF K7EPE0r4NsBoGL6xEUu8bVzWuIm3ZATSQhQ2AYCE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731179AbfK0U5W (ORCPT ); Wed, 27 Nov 2019 15:57:22 -0500 Received: from mail.kernel.org ([198.145.29.99]:48256 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731165AbfK0U5Q (ORCPT ); Wed, 27 Nov 2019 15:57:16 -0500 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 265102084D; Wed, 27 Nov 2019 20:57:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574888235; bh=2tfT+JNrdVWZ+oMRcmgZUtHbBrEltXM0CPEOcEo0S8Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LJgBCY77HGP9bXTN45g+s93V4pMECjuF0jogJF371dcLcHlv2TUL0EuHSww6uB6lO UG9VX4EASi7pkixuUKPtDCBmFFbKCqMPBdYETWVqVO1Q26IL2xQZ3JiUC7gtIRSvjI 6cpT4IUS+sq71WN+yXzmpQld120XIpJlwQy09W2o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Josef Bacik , Mike Christie , Sun Ke , Jens Axboe Subject: [PATCH 4.19 014/306] nbd:fix memory leak in nbd_get_socket() Date: Wed, 27 Nov 2019 21:27:44 +0100 Message-Id: <20191127203115.750394671@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191127203114.766709977@linuxfoundation.org> References: <20191127203114.766709977@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sun Ke commit dff10bbea4be47bdb615b036c834a275b7c68133 upstream. Before returning NULL, put the sock first. Cc: stable@vger.kernel.org Fixes: cf1b2326b734 ("nbd: verify socket is supported during setup") Reviewed-by: Josef Bacik Reviewed-by: Mike Christie Signed-off-by: Sun Ke Signed-off-by: Jens Axboe Signed-off-by: Greg Kroah-Hartman --- drivers/block/nbd.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -945,6 +945,7 @@ static struct socket *nbd_get_socket(str if (sock->ops->shutdown == sock_no_shutdown) { dev_err(disk_to_dev(nbd->disk), "Unsupported socket: shutdown callout must be supported.\n"); *err = -EINVAL; + sockfd_put(sock); return NULL; }