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=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 A28C6C33CA3 for ; Sat, 11 Jan 2020 09:58:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A25F2082E for ; Sat, 11 Jan 2020 09:58:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578736735; bh=IUY4U44esFWbfleDsjrVa7BP0ZvlKMaCIMck05qsgsw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HEIcKG7PqABMNXeChEcqzIxp9xSgfi9y2j96qpnNzIqnxrh0IbVaeKgatNbJabDPy 6k3WLnKtI6eGnbiVQ2spedDwU3/Ml9oEsfcl6yzGXq/UeW7kW9I/bRVBVn5VCrePLd 9EMRibN7FKo843+qKZ6Hn5eEs1A3rQ67owvjPNPI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729274AbgAKJ6y (ORCPT ); Sat, 11 Jan 2020 04:58:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:52762 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728900AbgAKJ6x (ORCPT ); Sat, 11 Jan 2020 04:58:53 -0500 Received: from localhost (unknown [62.119.166.9]) (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 2337220848; Sat, 11 Jan 2020 09:58:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578736732; bh=IUY4U44esFWbfleDsjrVa7BP0ZvlKMaCIMck05qsgsw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wJN1vOPAcPqxmL3eZqVtkvk4PQyk4I6nd4klMU0dV2+mW1+LyM/TfNRHeJrataIk/ A7eY09X2qNQFR5C7rAJgaOPqnSMBOUwsRVqd9+YpLMHRfxuu0XnIt7oNlsP2oxsUvZ lxoLTt6G4hzvxoLdjTaIYCw1eAjdhg1pB3jkPkus= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.9 05/91] scsi: iscsi: qla4xxx: fix double free in probe Date: Sat, 11 Jan 2020 10:48:58 +0100 Message-Id: <20200111094845.672920775@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200111094844.748507863@linuxfoundation.org> References: <20200111094844.748507863@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: Dan Carpenter [ Upstream commit fee92f25777789d73e1936b91472e9c4644457c8 ] On this error path we call qla4xxx_mem_free() and then the caller also calls qla4xxx_free_adapter() which calls qla4xxx_mem_free(). It leads to a couple double frees: drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->chap_dma_pool' double freed drivers/scsi/qla4xxx/ql4_os.c:8856 qla4xxx_probe_adapter() warn: 'ha->fw_ddb_dma_pool' double freed Fixes: afaf5a2d341d ("[SCSI] Initial Commit of qla4xxx") Link: https://lore.kernel.org/r/20191203094421.hw7ex7qr3j2rbsmx@kili.mountain Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/qla4xxx/ql4_os.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index d220b4f691c7..f714d5f917d1 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -4285,7 +4285,6 @@ static int qla4xxx_mem_alloc(struct scsi_qla_host *ha) return QLA_SUCCESS; mem_alloc_error_exit: - qla4xxx_mem_free(ha); return QLA_ERROR; } -- 2.20.1