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authorPatrick McHardy <kaber@trash.net>2008-03-28 03:28:10 (GMT)
committerDavid S. Miller <davem@davemloft.net>2008-03-28 03:28:10 (GMT)
commit3480c63bdf008e9289aab94418f43b9592978fff (patch)
tree14a355d650dc467e105fe00bc62a3599e890bc50 /net
parent349fb2d6492e7d644bc8e670ba11d764a3e2901b (diff)
downloadlinux-3480c63bdf008e9289aab94418f43b9592978fff.tar.xz
[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 <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/llc/af_llc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 46cf962..8c50eb4 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;