Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759975AbaJCXXN (ORCPT ); Fri, 3 Oct 2014 19:23:13 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:46742 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757785AbaJCWNm (ORCPT ); Fri, 3 Oct 2014 18:13:42 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Joern Engel , Nicholas Bellinger Subject: [PATCH 3.14 148/238] iscsi-target: avoid NULL pointer in iscsi_copy_param_list failure Date: Fri, 3 Oct 2014 14:31:03 -0700 Message-Id: <20141003212918.415224433@linuxfoundation.org> X-Mailer: git-send-email 2.1.2 In-Reply-To: <20141003212913.680985295@linuxfoundation.org> References: <20141003212913.680985295@linuxfoundation.org> User-Agent: quilt/0.63-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joern Engel commit 8ae757d09c45102b347a1bc2867f54ffc1ab8fda upstream. In iscsi_copy_param_list() a failed iscsi_param_list memory allocation currently invokes iscsi_release_param_list() to cleanup, and will promptly trigger a NULL pointer dereference. Instead, go ahead and return for the first iscsi_copy_param_list() failure case. Found by coverity. Signed-off-by: Joern Engel Signed-off-by: Nicholas Bellinger Signed-off-by: Greg Kroah-Hartman --- drivers/target/iscsi/iscsi_target_parameters.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -601,7 +601,7 @@ int iscsi_copy_param_list( param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL); if (!param_list) { pr_err("Unable to allocate memory for struct iscsi_param_list.\n"); - goto err_out; + return -1; } INIT_LIST_HEAD(¶m_list->param_list); INIT_LIST_HEAD(¶m_list->extra_response_list); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/