From 3480c63bdf008e9289aab94418f43b9592978fff Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 27 Mar 2008 20:28:10 -0700 Subject: [PATCH] [LLC]: Restrict LLC sockets to root 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 Signed-off-by: David S. Miller --- net/llc/af_llc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 46cf962f7f8..8c50eb430c1 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; -- 2.41.1