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authorSteffen Klassert <steffen.klassert@secunet.com>2017-08-25 09:05:42 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-09-20 08:20:03 +0200
commit7829684088a216b8b53894768cd4f483c246cb94 (patch)
tree9b0f4034092d452a73660c169262db6ac6d2ddcd
parentae04a8c4c6fc5b4aabfb166588045e2845b4d4e7 (diff)
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>
-rw-r--r--net/ipv6/route.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9c2dd3f77cdb..61729641e027 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -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;