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| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:46 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-24 16:37:18 +0200 |
| commit | 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac (patch) | |
| tree | 80c711f00e5af6609803b4311e1fc311f2c0ea07 /net/appletalk | |
| parent | b91ee4aa2a2199ba4d4650706c272985a5a32d80 (diff) | |
| download | linux-6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac.tar.gz linux-6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac.tar.bz2 linux-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.c | 5 |
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) |