From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: netdev@vger.kernel.org
Cc: isdn@linux-pingi.de, jreuter@yaina.de, ralf@linux-mips.org,
alex.aring@gmail.com, stefan@datenfreihafen.org,
orinimron123@gmail.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 1/5] mISDN: enforce CAP_NET_RAW for raw sockets
Date: Fri, 20 Sep 2019 09:35:45 +0200 [thread overview]
Message-ID: <20190920073549.517481-2-gregkh@linuxfoundation.org> (raw)
In-Reply-To: <20190920073549.517481-1-gregkh@linuxfoundation.org>
From: Ori Nimron <orinimron123@gmail.com>
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>
---
drivers/isdn/mISDN/socket.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index c6ba37df4b9d..dff4132b3702 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -754,6 +754,8 @@ 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)
--
2.23.0
next prev parent reply other threads:[~2019-09-20 7:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-20 7:35 [PATCH 0/5] Raw socket cleanups Greg Kroah-Hartman
2019-09-20 7:35 ` Greg Kroah-Hartman [this message]
2019-09-20 7:35 ` [PATCH 2/5] appletalk: enforce CAP_NET_RAW for raw sockets Greg Kroah-Hartman
2019-09-20 7:35 ` [PATCH 3/5] ax25: " Greg Kroah-Hartman
2019-09-20 7:35 ` [PATCH 4/5] ieee802154: " Greg Kroah-Hartman
2019-09-21 11:58 ` Stefan Schmidt
2019-09-21 12:30 ` Greg Kroah-Hartman
2019-09-20 7:35 ` [PATCH 5/5] nfc: " Greg Kroah-Hartman
2019-09-24 14:38 ` [PATCH 0/5] Raw socket cleanups David Miller
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