commit f1e79e208076ffe7bad97158275f1c572c04f5c7
author Masatake YAMATO <yamato@redhat.com> Tue Mar 19 01:47:27 2013 +0000
committer David S. Miller <davem@davemloft.net> Wed Mar 20 12:05:51 2013 -0400
tree ce2a0769199516ab9581f910266c51a8affdf1f1
parent 90b2621fd465949e1714127e829a79160de14b38

genetlink: trigger BUG_ON if a group name is too long

Trigger BUG_ON if a group name is longer than GENL_NAMSIZ.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/netlink/genetlink.c

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f2aabb6..5a55be3 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -142,6 +142,7 @@
 	int err = 0;
 
 	BUG_ON(grp->name[0] == '\0');
+	BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
 
 	genl_lock();