linux-kernel - Re: [PATCH v6] scsi:iscsi: Fix multiple iscsi session unbind event sent to userspace

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Message-ID: <202211090606.r22uKz8I-lkp@intel.com>
Date:   Wed, 9 Nov 2022 08:08:30 +0300
From:   Dan Carpenter <error27@...il.com>
To:     oe-kbuild@...ts.linux.dev, Wenchao Hao <haowenchao@...wei.com>,
        Lee Duncan <lduncan@...e.com>, Chris Leech <cleech@...hat.com>,
        Mike Christie <michael.christie@...cle.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>
Cc:     lkp@...el.com, oe-kbuild-all@...ts.linux.dev,
        open-iscsi@...glegroups.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linfeilong@...wei.com,
        Wenchao Hao <haowenchao@...wei.com>
Subject: Re: [PATCH v6] scsi:iscsi: Fix multiple iscsi session unbind event
 sent to userspace

Hi Wenchao,

https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Wenchao-Hao/scsi-iscsi-Fix-multiple-iscsi-session-unbind-event-sent-to-userspace/20221107-202840
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
patch link:    https://lore.kernel.org/r/20221108014414.3510940-1-haowenchao%40huawei.com
patch subject: [PATCH v6] scsi:iscsi: Fix multiple iscsi session unbind event sent to userspace
config: m68k-randconfig-m031-20221108
compiler: m68k-linux-gcc (GCC) 12.1.0

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Reported-by: Dan Carpenter <error27@...il.com>

smatch warnings:
drivers/scsi/scsi_transport_iscsi.c:1691 iscsi_session_target_state_name() error: buffer overflow 'iscsi_session_target_state_names' 4 <= 4

vim +/iscsi_session_target_state_names +1691 drivers/scsi/scsi_transport_iscsi.c

3aa534a2c8b080 Wenchao Hao 2022-11-07  1686  static const char *iscsi_session_target_state_name(int state)
3aa534a2c8b080 Wenchao Hao 2022-11-07  1687  {
3aa534a2c8b080 Wenchao Hao 2022-11-07  1688  	if (state > ISCSI_SESSION_TARGET_MAX)

Should be >=

3aa534a2c8b080 Wenchao Hao 2022-11-07  1689  		return NULL;
3aa534a2c8b080 Wenchao Hao 2022-11-07  1690  
3aa534a2c8b080 Wenchao Hao 2022-11-07 @1691  	return iscsi_session_target_state_names[state];
3aa534a2c8b080 Wenchao Hao 2022-11-07  1692  }

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