lkml.org 
[lkml]   [2018]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH][next] scsi: lpfc: replace snprintf with strscpy
Date
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
\
 
 \ /
  Last update: 2018-12-20 18:08    [W:0.029 / U:1.476 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site