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authorPatrick McHardy <kaber@trash.net>2008-03-28 04:28:10 +0100
committerDavid S. Miller <davem@davemloft.net>2008-03-28 04:28:10 +0100
commit3480c63bdf008e9289aab94418f43b9592978fff (patch)
tree14a355d650dc467e105fe00bc62a3599e890bc50 /net/llc/af_llc.c
parentMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil... (diff)
downloadlinux-3480c63bdf008e9289aab94418f43b9592978fff.tar.xz
linux-3480c63bdf008e9289aab94418f43b9592978fff.zip
[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/llc/af_llc.c')
-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 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;