diff options
| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 10:35:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 13:30:16 +0300 |
| commit | 45a9e9bc5d6742988df799dafbf26dca8e0dada3 (patch) | |
| tree | e610f20ddcd514c3aa42e8fe47e52b0d13836908 /net | |
| parent | ddca1f39c8980cb19db5ea6d51b8549288a7421b (diff) | |
| download | linux-45a9e9bc5d6742988df799dafbf26dca8e0dada3.tar.xz | |
nfc: enforce CAP_NET_RAW for raw sockets
[ Upstream commit 3a359798b176183ef09efb7a3dc59abad1cc7104 ]
When creating a raw AF_NFC 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')
| -rw-r--r-- | net/nfc/llcp_sock.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index e31dea17473d..22d5a80a8f34 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -1011,10 +1011,13 @@ static int llcp_sock_create(struct net *net, struct socket *sock, sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; - if (sock->type == SOCK_RAW) + if (sock->type == SOCK_RAW) { + if (!capable(CAP_NET_RAW)) + return -EPERM; sock->ops = &llcp_rawsock_ops; - else + } else { sock->ops = &llcp_sock_ops; + } sk = nfc_llcp_sock_alloc(sock, sock->type, GFP_ATOMIC, kern); if (sk == NULL) |