From: Colin King <colin.king@canonical.com>
To: James Smart <jsmart2021@gmail.com>,
Dick Kennedy <dick.kennedy@broadcom.com>,
"James E . J . Bottomley" <jejb@linux.ibm.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] scsi: lpfc: replace snprintf with strscpy
Date: Thu, 20 Dec 2018 17:08:05 +0000 [thread overview]
Message-ID: <20181220170805.17802-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
Using snprintf without a format specifier is potentially risky if the
string phba->ModelDesc contains format specifiers. Replace this with
the safer and more efficient strscpy.
Cleans up clang warning:
drivers/scsi/lpfc/lpfc_scsi.c:4543:31: warning: format string is not a
string literal (potentially insecure) [-Wformat-security]
Fixes: 5021267af132 ("scsi: lpfc: Adding ability to reset chip via pci bus reset")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/scsi/lpfc/lpfc_scsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b4f1a840b3b4..7b0cce3b42ed 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4540,7 +4540,7 @@ lpfc_info(struct Scsi_Host *host)
memset(lpfcinfobuf, 0, sizeof(lpfcinfobuf));
if (phba && phba->pcidev){
/* Model Description */
- scnprintf(tmp, sizeof(tmp), phba->ModelDesc);
+ strscpy(tmp, phba->ModelDesc, sizeof(tmp));
if (strlcat(lpfcinfobuf, tmp, sizeof(lpfcinfobuf)) >=
sizeof(lpfcinfobuf))
goto buffer_done;
--
2.19.1
reply other threads:[~2018-12-20 17:08 UTC|newest]
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