mISDN: enforce CAP_NET_RAW for raw sockets
[ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ] When creating a raw AF_ISDN 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -763,6 +763,8 @@ base_sock_create(struct net *net, struct socket *sock, int protocol, int kern)
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if (sock->type != SOCK_RAW)
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return -ESOCKTNOSUPPORT;
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if (!capable(CAP_NET_RAW))
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return -EPERM;
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sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern);
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if (!sk)
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