From patchwork Thu May 26 01:38:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jianglei Nie X-Patchwork-Id: 12861960 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17CE7C433EF for ; Thu, 26 May 2022 01:39:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240254AbiEZBjP (ORCPT ); Wed, 25 May 2022 21:39:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229458AbiEZBjN (ORCPT ); Wed, 25 May 2022 21:39:13 -0400 Received: from mail-m974.mail.163.com (mail-m974.mail.163.com [123.126.97.4]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 62C049D4FD; Wed, 25 May 2022 18:39:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=b2P3Q H6vt+McJy25fKhf43Jb4cDyVE2JY2bcEA7mzQo=; b=WDptdQL78j+RaS/nAHlYX 1Ce4aKhc4cNCcl5AxJK1AkEFLoy6YFb8SUGN9FUqFWukOvX2K+qSVayAHKuGitqX DHE9c9TyX+fYi6o1XcqZGm/kb/MR8YwojTjisk5yHeYHPRJXQBRWwEVwVe8SGfIG Xq94AeLZ77Q7yb0HmOMjoM= Received: from localhost.localdomain (unknown [123.112.69.106]) by smtp4 (Coremail) with SMTP id HNxpCgD3__Mh2o5ig+JFEQ--.3894S4; Thu, 26 May 2022 09:38:46 +0800 (CST) From: Jianglei Nie To: bootc@bootc.net, martin.petersen@oracle.com Cc: linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux1394-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Jianglei Nie Subject: [PATCH] scsi: target: sbp: Fix memory leak in sbp_management_request_logout() Date: Thu, 26 May 2022 09:38:39 +0800 Message-Id: <20220526013839.471987-1-niejianglei2021@163.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: HNxpCgD3__Mh2o5ig+JFEQ--.3894S4 X-Coremail-Antispam: 1Uf129KBjvdXoW7GFykCw47GF4DtF18KrWUXFb_yoWfWrgEkw srW34xurn5Ww4kKF4jkw15CrWavF4kZF1ayF4ktFWakrW7Wr1xXr1q9F93A3srCr48JrnY kFsIvr1Uu3y5ujkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xRibAwPUUUUU== X-Originating-IP: [123.112.69.106] X-CM-SenderInfo: xqlhyxxdqjzvrlsqjii6rwjhhfrp/1tbiMgQMjFWBzm5eRwABsa Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When req->node_addr != login->sess->node_id, sbp_management_request _logout() returns without releasing the login, which may lead to a potential memory leak. We can fix it by calling sbp_login_release() before the function returns. Signed-off-by: Jianglei Nie --- drivers/target/sbp/sbp_target.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index 504670994fb4..76f3ec58a24b 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -575,6 +575,7 @@ static void sbp_management_request_logout( req->status.status = cpu_to_be32( STATUS_BLOCK_RESP(STATUS_RESP_REQUEST_COMPLETE) | STATUS_BLOCK_SBP_STATUS(SBP_STATUS_ACCESS_DENIED)); + sbp_login_release(login, true); return; }