From: Ori Nimron orinimron123@gmail.com
[ Upstream commit 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac ]
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/appletalk/ddp.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1028,6 +1028,11 @@ static int atalk_create(struct net *net, */ 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)