ax25: enforce CAP_NET_RAW for raw sockets

commit 0614e2b73768b502fc32a75349823356d98aae2c upstream.

When creating a raw AF_AX25 socket, CAP_NET_RAW needs to be checked
first.

Signed-off-by: Ori Nimron <orinimron123@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 1428c3ff3341a98caec2ff4f504acb0b7e93d950..78f02c2de17c93da56274648f0f70191a3b26f1f 100644 (file)
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -853,6 +853,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
                break;
 
        case SOCK_RAW:
+               if (!capable(CAP_NET_RAW))
+                       return -EPERM;
                break;
        default:
                return -ESOCKTNOSUPPORT;