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From: Azeem Shaikh <azeemshaikh38@gmail.com>
To: Nilesh Javali <njavali@marvell.com>,
	Manish Rangankar <mrangankar@marvell.com>,
	GR-QLogic-Storage-Upstream@marvell.com
Cc: linux-hardening@vger.kernel.org,
	Azeem Shaikh <azeemshaikh38@gmail.com>,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>
Subject: [PATCH] scsi: qedi: Replace all non-returning strlcpy with strscpy
Date: Wed, 17 May 2023 14:35:09 +0000	[thread overview]
Message-ID: <20230517143509.1520387-1-azeemshaikh38@gmail.com> (raw)

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
---
 drivers/scsi/qedi/qedi_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index 45d359554182..450522b204d6 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -2593,7 +2593,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode)
 	sp_params.drv_minor = QEDI_DRIVER_MINOR_VER;
 	sp_params.drv_rev = QEDI_DRIVER_REV_VER;
 	sp_params.drv_eng = QEDI_DRIVER_ENG_VER;
-	strlcpy(sp_params.name, "qedi iSCSI", QED_DRV_VER_STR_SIZE);
+	strscpy(sp_params.name, "qedi iSCSI", QED_DRV_VER_STR_SIZE);
 	rc = qedi_ops->common->slowpath_start(qedi->cdev, &sp_params);
 	if (rc) {
 		QEDI_ERR(&qedi->dbg_ctx, "Cannot start slowpath\n");


             reply	other threads:[~2023-05-17 14:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-17 14:35 Azeem Shaikh [this message]
2023-05-17 19:14 ` Kees Cook
2023-05-22 19:39 ` Kees Cook

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