From: Michael Buesch <m@bues.ch>
Date: Tue, 31 Jul 2018 19:14:16 +0000 (+0200)
Subject: b43legacy/leds: Ensure NUL-termination of LED name string
X-Git-Tag: v4.14.68~37
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f0f3784ee3e944bc0044da45ad1e56580fd137d9;p=platform%2Fkernel%2Flinux-rpi.git

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

commit 4d77a89e3924b12f4a5628b21237e57ab4703866 upstream.

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
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/wireless/broadcom/b43legacy/leds.c b/drivers/net/wireless/broadcom/b43legacy/leds.c
index fd45653..bc92211 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;