From: Ori Nimron <orinimron123@gmail.com>
Date: Fri, 20 Sep 2019 07:35:48 +0000 (+0200)
Subject: ieee802154: enforce CAP_NET_RAW for raw sockets
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=70f80cb205649c7350617ca79515b98419e90475;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

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>
---

diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index a60658c85a9a..e95004b507d3 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -1001,6 +1001,9 @@ 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;