diff options
| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:46 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2019-11-15 00:56:55 +0000 |
| commit | 2d4020439bd19f2a498a7fccd8755521a90b2886 (patch) | |
| tree | 44e6bb63f03f971d2199e4d1e56da10954eaca5b | |
| parent | b8a15d59a9b26a734f6d8d5f10376f336f7d021b (diff) | |
appletalk: enforce CAP_NET_RAW for raw sockets
commit 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac upstream.
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: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | net/appletalk/ddp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index e462ce6617a9..d1ac3818a37b 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1029,6 +1029,11 @@ 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); if (!sk) |