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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 783A6C04FF3 for ; Mon, 24 May 2021 16:02:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F4C2610A8 for ; Mon, 24 May 2021 16:02:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235087AbhEXQDc (ORCPT ); Mon, 24 May 2021 12:03:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:39954 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235402AbhEXP4c (ORCPT ); Mon, 24 May 2021 11:56:32 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BC7106140B; Mon, 24 May 2021 15:42:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621870979; bh=KMpnQluOi1+SqxhiUXyVmM16htn4gqIsZs89RfgJ7XM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WwMOWkd4VdJO8aopNWO4prVk/BjGL0Dvd/rHqJKEDZ8P5XtuOhSXHNnokwUv7/k8y oheczUD4xpjdEZjPFW2Ig+iiZAFq9Dy3DtMJkb+lvPuKg3Ot97GZ5ttIAZ0gh0Et9x b1MabpeorDLq8k0RSGBIkFjrBuMX6nJES3kWLb/s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wu Bo , Christoph Hellwig , Sasha Levin Subject: [PATCH 5.12 018/127] nvme-loop: fix memory leak in nvme_loop_create_ctrl() Date: Mon, 24 May 2021 17:25:35 +0200 Message-Id: <20210524152335.479393062@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210524152334.857620285@linuxfoundation.org> References: <20210524152334.857620285@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wu Bo [ Upstream commit 03504e3b54cc8118cc26c064e60a0b00c2308708 ] When creating loop ctrl in nvme_loop_create_ctrl(), if nvme_init_ctrl() fails, the loop ctrl should be freed before jumping to the "out" label. Fixes: 3a85a5de29ea ("nvme-loop: add a NVMe loopback host driver") Signed-off-by: Wu Bo Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/target/loop.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 3e189e753bcf..14913a4588ec 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -588,8 +588,10 @@ static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev, ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_loop_ctrl_ops, 0 /* no quirks, we're perfect! */); - if (ret) + if (ret) { + kfree(ctrl); goto out; + } if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) WARN_ON_ONCE(1); -- 2.30.2