diff mbox series

[1/4] can: sja1000: force the string buffer NULL-terminated

Message ID 20190802120038.18154-2-mkl@pengutronix.de
State Accepted
Delegated to: David Miller
Headers show
Series [1/4] can: sja1000: force the string buffer NULL-terminated | expand

Commit Message

Marc Kleine-Budde Aug. 2, 2019, noon UTC 
From: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>

strncpy() does not ensure NULL-termination when the input string size
equals to the destination buffer size IFNAMSIZ. The output string
'name' is passed to dev_info which relies on NULL-termination.

Use strlcpy() instead.

This issue is identified by a Coccinelle script.

Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/sja1000/peak_pcmcia.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/can/sja1000/peak_pcmcia.c b/drivers/net/can/sja1000/peak_pcmcia.c
index 185c7f7d38a4..5e0d5e8101c8 100644
--- a/drivers/net/can/sja1000/peak_pcmcia.c
+++ b/drivers/net/can/sja1000/peak_pcmcia.c
@@ -479,7 +479,7 @@  static void pcan_free_channels(struct pcan_pccard *card)
 		if (!netdev)
 			continue;
 
-		strncpy(name, netdev->name, IFNAMSIZ);
+		strlcpy(name, netdev->name, IFNAMSIZ);
 
 		unregister_sja1000dev(netdev);