From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>,
Marc Kleine-Budde <mkl@pengutronix.de>,
Sasha Levin <sashal@kernel.org>,
linux-can@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.2 076/123] can: peak_usb: force the string buffer NULL-terminated
Date: Tue, 13 Aug 2019 22:10:00 -0400 [thread overview]
Message-ID: <20190814021047.14828-76-sashal@kernel.org> (raw)
In-Reply-To: <20190814021047.14828-1-sashal@kernel.org>
From: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
[ 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 458154c9b4829..4c2cda5ecf3f8 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -855,7 +855,7 @@ 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);
--
2.20.1
prev parent reply other threads:[~2019-08-14 2:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190814021047.14828-1-sashal@kernel.org>
2019-08-14 2:09 ` [PATCH AUTOSEL 5.2 037/123] can: dev: call netif_carrier_off() in register_candev() Sasha Levin
2019-08-14 2:09 ` [PATCH AUTOSEL 5.2 038/123] can: mcp251x: add error check when wq alloc failed Sasha Levin
2019-08-14 2:09 ` [PATCH AUTOSEL 5.2 039/123] can: gw: Fix error path of cgw_module_init Sasha Levin
2019-08-14 2:09 ` [PATCH AUTOSEL 5.2 075/123] can: sja1000: force the string buffer NULL-terminated Sasha Levin
2019-08-14 2:10 ` Sasha Levin [this message]
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