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-Tag: v3.16.77~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8a15d59a9b26a734f6d8d5f10376f336f7d021b;p=thirdparty%2Fkernel%2Fstable.git

ieee802154: enforce CAP_NET_RAW for raw sockets

commit e69dbd4619e7674c1679cba49afd9dd9ac347eef upstream.

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>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
index 351d9a94ec2fa..bc262a3f46ba5 100644
--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -255,6 +255,9 @@ 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;