Commit 78296840 authored Aug 25, 2017 by Steffen Klassert Committed by Greg Kroah-Hartman Sep 20, 2017

ipv6: Fix may be used uninitialized warning in rt6_check



commit 3614364527daa870264f6dde77f02853cdecd02c upstream.

rt_cookie might be used uninitialized, fix this by
initializing it.

Fixes: c5cff8561d2d ("ipv6: add rcu grace period before freeing fib6_node")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent ae04a8c4

net/ipv6/route.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1267,7 +1267,7 @@ static void rt6_dst_from_metrics_check(struct rt6_info *rt)

		static struct dst_entry rt6_check(struct rt6_info rt, u32 cookie)
		{
		u32 rt_cookie;
		u32 rt_cookie = 0;

		if (!rt6_get_cookie_safe(rt, &rt_cookie) \|\| rt_cookie != cookie)
		return NULL;