From 00c27f542c096ad09c41dac95551346a2208e7f0 Mon Sep 17 00:00:00 2001
From: Young Xiao <92siuyang@gmail.com>
Date: Tue, 11 Jun 2019 15:37:37 +0800
Subject: [PATCH] syscons: fix potential buffer overflow

Use strncpy() to copy into a fixed-size buffer instead of
using strcpy.

Signed-off-by: Young Xiao <92siuyang@gmail.com>
---
 sys/dev/syscons/syscons.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/dev/syscons/syscons.c b/sys/dev/syscons/syscons.c
index 278c3c8..2ba832e 100644
--- a/sys/dev/syscons/syscons.c
+++ b/sys/dev/syscons/syscons.c
@@ -4262,7 +4262,8 @@ sc_allocate_keyboard(sc_softc_t *sc, int unit)
 				continue;
 
 			bzero(&ki, sizeof(ki));
-			strcpy(ki.kb_name, k->kb_name);
+			strncpy(ki.kb_name, k->kb_name, sizeof(ki.kb_name));
+			ki.kb_name[sizeof(ki.kb_name) - 1] = '\0';
 			ki.kb_unit = k->kb_unit;
 
 			(void)kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
-- 
2.7.4