diff mbox series

b43legacy/leds: Ensure NUL-termination of LED name string

Message ID 20180731211416.36cde729@wiggum (mailing list archive)
State Accepted
Delegated to: Kalle Valo
Headers show
Series b43legacy/leds: Ensure NUL-termination of LED name string | expand

Commit Message

Michael Büsch July 31, 2018, 7:14 p.m. UTC
strncpy might not NUL-terminate the string, if the name equals the buffer size.
Use strlcpy instead.

Signed-off-by: Michael Buesch <m@bues.ch>
Cc: stable@vger.kernel.org
---
 drivers/net/wireless/broadcom/b43legacy/leds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kalle Valo Aug. 9, 2018, 3:45 p.m. UTC | #1
Michael Büsch <m@bues.ch> writes:

> strncpy might not NUL-terminate the string, if the name equals the buffer size.
> Use strlcpy instead.
>
> Signed-off-by: Michael Buesch <m@bues.ch>
> Cc: stable@vger.kernel.org

Applied manually:

4d77a89e3924 b43legacy/leds: Ensure NUL-termination of LED name string
diff mbox series

Patch

diff --git a/drivers/net/wireless/broadcom/b43legacy/leds.c b/drivers/net/wireless/broadcom/b43legacy/leds.c
index fd4565389c77..bc922118b6ac 100644
--- a/drivers/net/wireless/broadcom/b43legacy/leds.c
+++ b/drivers/net/wireless/broadcom/b43legacy/leds.c
@@ -101,7 +101,7 @@  static int b43legacy_register_led(struct b43legacy_wldev *dev,
 	led->dev = dev;
 	led->index = led_index;
 	led->activelow = activelow;
-	strncpy(led->name, name, sizeof(led->name));
+	strlcpy(led->name, name, sizeof(led->name));
 
 	led->led_dev.name = led->name;
 	led->led_dev.default_trigger = default_trigger;