From: Chen Gang <gang.chen@asianux.com>
Date: Fri, 7 Jun 2013 00:08:36 +0000 (+1000)
Subject: arch/frv/kernel/traps.c: using vsnprintf() instead of vsprintf()
X-Git-Tag: next-20130607~2^2~263
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e1eac01c8b4578c69614b2d1270b8a9dc0773f49;p=karo-tx-linux.git

arch/frv/kernel/traps.c: using vsnprintf() instead of vsprintf()

Since die_if_kernel() is an extern common used function, better always
check the buffer length to avoid memory overflow by a long 'str'.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 4bff48c19d29..a6d105d61b26 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -523,7 +523,7 @@ void die_if_kernel(const char *str, ...)
 		return;
 
 	va_start(va, str);
-	vsprintf(buffer, str, va);
+	vsnprintf(buffer, sizeof(buffer), str, va);
 	va_end(va);
 
 	console_verbose();