netdev - [PATCH 1/2] genetlink: trigger BUG_ON if a group name is too long

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Message-Id: <1363693648-10015-2-git-send-email-yamato@redhat.com>
Date:	Tue, 19 Mar 2013 20:47:27 +0900
From:	Masatake YAMATO <yamato@...hat.com>
To:	netdev@...r.kernel.org
Cc:	Masatake YAMATO <yamato@...hat.com>
Subject: [PATCH 1/2] 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@...hat.com>
---
 net/netlink/genetlink.c | 1 +
 1 file changed, 1 insertion(+)

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 genl_register_mc_group(struct genl_family *family,
 	int err = 0;
 
 	BUG_ON(grp->name[0] == '\0');
+	BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
 
 	genl_lock();
 
-- 
1.7.11.7

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