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authorChangli Gao <xiaosuo@gmail.com>2010-03-31 22:58:26 +0000
committerDavid S. Miller <davem@davemloft.net>2010-04-01 17:26:01 -0700
commit6503d96168f891ffa3b70ae6c9698a1a722025a0 (patch)
tree9fafcd9eb2c0b3feda0cf4c36e4167ba3028d83a /net/netlink
parenta1d6f3f65512cc90a636e6ec653b7bc9e2238753 (diff)
downloadlinux-6503d96168f891ffa3b70ae6c9698a1a722025a0.tar.bz2
net: check the length of the socket address passed to connect(2)
check the length of the socket address passed to connect(2). Check the length of the socket address passed to connect(2). If the length is invalid, -EINVAL will be returned. Signed-off-by: Changli Gao <xiaosuo@gmail.com> ---- net/bluetooth/l2cap.c | 3 ++- net/bluetooth/rfcomm/sock.c | 3 ++- net/bluetooth/sco.c | 3 ++- net/can/bcm.c | 3 +++ net/ieee802154/af_ieee802154.c | 3 +++ net/ipv4/af_inet.c | 5 +++++ net/netlink/af_netlink.c | 3 +++ 7 files changed, 20 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink')
-rw-r--r--net/netlink/af_netlink.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index acbbae1e89b5..795424396aff 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -683,6 +683,9 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr,
struct netlink_sock *nlk = nlk_sk(sk);
struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr;
+ if (alen < sizeof(addr->sa_family))
+ return -EINVAL;
+
if (addr->sa_family == AF_UNSPEC) {
sk->sk_state = NETLINK_UNCONNECTED;
nlk->dst_pid = 0;