Commit bb439ee2 authored Sep 20, 2019 by Ori Nimron Committed by Greg Kroah-Hartman Oct 05, 2019

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>

parent 55416208

drivers/isdn/mISDN/socket.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -766,6 +766,8 @@ base_sock_create(struct net net, struct socket sock, int protocol, int kern)

		if (sock->type != SOCK_RAW)
		return -ESOCKTNOSUPPORT;
		if (!capable(CAP_NET_RAW))
		return -EPERM;

		sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern);
		if (!sk)