From: Ori Nimron <orinimron123@gmail.com>
Date: Fri, 20 Sep 2019 07:35:47 +0000 (+0200)
Subject: ax25: enforce CAP_NET_RAW for raw sockets
X-Git-Tag: v4.4.195~70
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c15d89b5cb86dfcdee536d093ece512091ed6e5c;p=thirdparty%2Fkernel%2Fstable.git

ax25: enforce CAP_NET_RAW for raw sockets

[ Upstream commit 0614e2b73768b502fc32a75349823356d98aae2c ]

When creating a raw AF_AX25 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>
---

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 2772f6a13fcb4..de55a3f001dc4 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -859,6 +859,8 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
 		break;
 
 	case SOCK_RAW:
+		if (!capable(CAP_NET_RAW))
+			return -EPERM;
 		break;
 	default:
 		return -ESOCKTNOSUPPORT;