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netlink: make sure nladdr has correct size in netlink_connect()
[pandora-kernel.git]
/
net
/
netlink
/
af_netlink.c
diff --git
a/net/netlink/af_netlink.c
b/net/netlink/af_netlink.c
index
2369e96
..
d1017ad
100644
(file)
--- a/
net/netlink/af_netlink.c
+++ b/
net/netlink/af_netlink.c
@@
-706,6
+706,9
@@
static int netlink_connect(struct socket *sock, struct sockaddr *addr,
if (addr->sa_family != AF_NETLINK)
return -EINVAL;
+ if (alen < sizeof(struct sockaddr_nl))
+ return -EINVAL;
+
/* Only superuser is allowed to send multicasts */
if (nladdr->nl_groups && !netlink_capable(sock, NL_NONROOT_SEND))
return -EPERM;