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[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>
This commit is contained in:
Patrick McHardy 2008-03-27 20:28:10 -07:00 committed by David S. Miller
parent 349fb2d649
commit 3480c63bdf
1 changed files with 3 additions and 0 deletions
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3
net/llc/af_llc.c
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@ -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;