From a279cd311c1e3870de25fe48e948487b4785e9cd Mon Sep 17 00:00:00 2001
From: Ori Nimron <orinimron123@gmail.com>
Date: Fri, 20 Sep 2019 09:35:48 +0200
Subject: [PATCH] ieee802154: enforce CAP_NET_RAW for raw sockets

[ Upstream commit e69dbd4619e7674c1679cba49afd9dd9ac347eef ]

When creating a raw AF_IEEE802154 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>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ieee802154/socket.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index 47b397264f24..cb6c0772ea36 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -999,6 +999,9 @@ static int ieee802154_create(struct net *net, struct socket *sock,
 
 	switch (sock->type) {
 	case SOCK_RAW:
+		rc = -EPERM;
+		if (!capable(CAP_NET_RAW))
+			goto out;
 		proto = &ieee802154_raw_prot;
 		ops = &ieee802154_raw_ops;
 		break;