From patchwork Tue Jun 2 18:33:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudhakar Panneerselvam X-Patchwork-Id: 11584203 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 22D6890 for ; Tue, 2 Jun 2020 18:34:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 02C7E206E2 for ; Tue, 2 Jun 2020 18:34:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="ICxfzS50" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726174AbgFBSeC (ORCPT ); Tue, 2 Jun 2020 14:34:02 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:39980 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726139AbgFBSeC (ORCPT ); Tue, 2 Jun 2020 14:34:02 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 052IWIEW025403; Tue, 2 Jun 2020 18:34:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2020-01-29; bh=EjxpJO2tn9rcgu9xQome5Q58wfb1d+BrE0+x1mPUCIE=; b=ICxfzS50RyCy4tLpoHVcmA32iC1GRA/fdQtznjaR0wfd894gaTBiu1pE3AfZrxiV8nPd KUcCHVgfokvEpCgIMvar3SPDYSzLCeb5rUp/msSxNuBTshG3JvGScultFlttwfWQJw+t 8179VtiLYHCLGi/jvGvDTOAdf9nfSAb7X1yn3rXhU3EbMhK874SeADXmAOzfbDDmbse3 HGjTxT/BcN0kg/5N3zxOnXTjcS06xk5SIzRSIKmkwFajQPoq8fhEfN8YuOSX9Funwk9l fOLqJuurh5ThJCmvHOglEGC24hWobgjXBVHINYm40fm0grvfY3m9c2LLV3JhnosesD+b xg== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2120.oracle.com with ESMTP id 31dkrujk2a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 02 Jun 2020 18:34:01 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 052IXxiT106484; Tue, 2 Jun 2020 18:34:00 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3020.oracle.com with ESMTP id 31c25ppp6s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 02 Jun 2020 18:33:58 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 052IXqSW004623; Tue, 2 Jun 2020 18:33:52 GMT Received: from supannee-devvm-ol7.osdevelopmeniad.oraclevcn.com (/100.100.231.179) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 02 Jun 2020 11:33:51 -0700 From: Sudhakar Panneerselvam To: martin.petersen@oracle.com, michael.christie@oracle.com, target-devel@vger.kernel.org, linux-scsi@vger.kernel.org Cc: shirley.ma@oracle.com Subject: [PATCH v3 0/3] target: fix NULL pointer dereference Date: Tue, 2 Jun 2020 18:33:42 +0000 Message-Id: <1591122825-2652-1-git-send-email-sudhakar.panneerselvam@oracle.com> X-Mailer: git-send-email 1.8.3.1 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9640 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 suspectscore=0 spamscore=0 malwarescore=0 bulkscore=0 mlxscore=0 phishscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006020134 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9640 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 clxscore=1015 adultscore=0 mlxlogscore=999 cotscore=-2147483648 phishscore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006020134 Sender: target-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org The following set of commits address a NULL pointer dereference and some refactoring around this issue. v3: - fix NULL pointer dereference when cdb initialization fails v2: - new helper is named as target_cmd_init_cdb() - existing function, target_setup_cmd_from_cdb is renamed as target_cmd_parse_cdb() Sudhakar Panneerselvam (3): target: factor out a new helper, target_cmd_init_cdb() target: fix NULL pointer dereference target: rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb() drivers/target/iscsi/iscsi_target.c | 21 +++++++++++------- drivers/target/target_core_transport.c | 40 +++++++++++++++++++++++++++------- drivers/target/target_core_xcopy.c | 5 ++++- include/target/target_core_fabric.h | 3 ++- 4 files changed, 51 insertions(+), 18 deletions(-)