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authorOri Nimron <orinimron123@gmail.com>2019-09-20 09:35:46 +0200
committerDavid S. Miller <davem@davemloft.net>2019-09-24 16:37:18 +0200
commit6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac (patch)
tree80c711f00e5af6609803b4311e1fc311f2c0ea07 /net/appletalk
parentmISDN: enforce CAP_NET_RAW for raw sockets (diff)
downloadlinux-dev-6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac.tar.xz
linux-dev-6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac.zip
appletalk: enforce CAP_NET_RAW for raw sockets
When creating a raw AF_APPLETALK 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>
Diffstat (limited to 'net/appletalk')
-rw-r--r--net/appletalk/ddp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 4072e9d394d6..b41375d4d295 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1023,6 +1023,11 @@ static int atalk_create(struct net *net, struct socket *sock, int protocol,
*/
if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
goto out;
+
+ rc = -EPERM;
+ if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
+ goto out;
+
rc = -ENOMEM;
sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, kern);
if (!sk)