diff options
| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 10:35:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 14:09:31 +0300 |
| commit | 6fbf866276089853727dd9b31f1d251e61dde367 (patch) | |
| tree | 3dab95cc6409ef6b6538ea6e6713ec80d69aab59 /net/appletalk | |
| parent | 50dddec689cb2105f6bccf4a2c6fe43dcc3295d7 (diff) | |
| download | linux-6fbf866276089853727dd9b31f1d251e61dde367.tar.xz | |
appletalk: enforce CAP_NET_RAW for raw sockets
[ 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>
Diffstat (limited to 'net/appletalk')
| -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 795fbc6c06aa..9abb18fffbc3 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1028,6 +1028,11 @@ 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) |