[ Upstream commit e787f19373b8a5fa24087800ed78314fd17b984a ]
strncpy() does not ensure NULL-termination when the input string size equals to the destination buffer size IFNAMSIZ. The output string is passed to dev_info() which relies on the 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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/usb/peak_usb/pcan_usb_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c index 54c2354053ace..ce0a352a5eaab 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c @@ -879,7 +879,7 @@ static void peak_usb_disconnect(struct usb_interface *intf)
dev_prev_siblings = dev->prev_siblings; dev->state &= ~PCAN_USB_STATE_CONNECTED; - strncpy(name, netdev->name, IFNAMSIZ); + strlcpy(name, netdev->name, IFNAMSIZ);
unregister_netdev(netdev);