diff options
| author | Patrick McHardy <kaber@trash.net> | 2008-04-06 23:40:33 -0700 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2008-04-18 18:53:25 -0700 |
| commit | e982cc89839374bb1a504448401dfafaf772bdbf (patch) | |
| tree | f9356c889e3e2fc0a1333992b7e57f89681c5f44 | |
| parent | c6724ce3027b11151d39b4d19b85b9401462eebd (diff) | |
LLC: Restrict LLC sockets to root
Upstream commit: 3480c63bdf008e9289aab94418f43b9592978fff
LLC currently allows users to inject raw frames, including IP packets
encapsulated in SNAP. While Linux doesn't handle IP over SNAP, other
systems do. Restrict LLC sockets to root similar to packet sockets.
[ Modified Patrick's patch to use CAP_NEW_RAW --DaveM ]
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -rw-r--r-- | net/llc/af_llc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 46cf962f7f88..8c50eb430c19 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -155,6 +155,9 @@ static int llc_ui_create(struct net *net, struct socket *sock, int protocol) struct sock *sk; int rc = -ESOCKTNOSUPPORT; + if (!capable(CAP_NET_RAW)) + return -EPERM; + if (net != &init_net) return -EAFNOSUPPORT; |