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 E7CA5C33C9E for ; Tue, 7 Jan 2020 21:20:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC2CA2077B for ; Tue, 7 Jan 2020 21:20:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578432020; bh=fD30xHA+J0qZBkzzvE0CUtKOV2ktSYvGLN96VwbX1Lw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=P/y8hZQpfjpHAk3To+am+hDvV7zhZlQGgmteGerH8f6qPApH2ze4fWZ+B9EC1T4MK TThZEUAuR1JRGaqNhhOwtPrl6wb6zZp1CG2LHNrMIpuKTfreR7o9ed1ghdV6y7yHQz soUqkZ32Hn9G/9MLrg9Bk/01k9dghWJyFlzkBiak= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728789AbgAGVE3 (ORCPT ); Tue, 7 Jan 2020 16:04:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:48784 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727543AbgAGVE2 (ORCPT ); Tue, 7 Jan 2020 16:04:28 -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 CB3A42081E; Tue, 7 Jan 2020 21:04:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578431068; bh=fD30xHA+J0qZBkzzvE0CUtKOV2ktSYvGLN96VwbX1Lw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HtUQ6grtzEZ6TF9bJHZERjcTrlfwBtPj065HoP0twP4TxSIPHin+gMjJ7QKdbFILt O4mboogY9cFBKAZkyuQ35l3moRna8ouvSc+5VMUEYbuRGPa82Riz+GSzmc4MBK0wq5 1ZlhYdt3VZ/Y98nwV7cO6WhZ4iOyp0KSlveHj0wk= 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 4.19 021/115] scsi: iscsi: qla4xxx: fix double free in probe Date: Tue, 7 Jan 2020 21:53:51 +0100 Message-Id: <20200107205254.302233135@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200107205240.283674026@linuxfoundation.org> References: <20200107205240.283674026@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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 25c8ce54a976..f8acf101af3d 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -4280,7 +4280,6 @@ 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