diff options
| author | Qingyu Li <ieatmuttonchuan@gmail.com> | 2020-08-10 09:51:00 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-19 08:16:22 +0200 |
| commit | 0b305f259ca9b85c48f9cb3159d034b7328ed225 (patch) | |
| tree | a3c4c1e8c2c1ecf0f6a728cfc7fc9d2901c23614 | |
| parent | 02618095ab45aa6797d6ffb8396a131ada7f8a86 (diff) | |
net/nfc/rawsock.c: add CAP_NET_RAW check.
[ Upstream commit 26896f01467a28651f7a536143fe5ac8449d4041 ]
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first.
Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/nfc/rawsock.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index ba5ffd3badd3..b5c867fe3232 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -332,10 +332,13 @@ static int rawsock_create(struct net *net, struct socket *sock, if ((sock->type != SOCK_SEQPACKET) && (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 = &rawsock_raw_ops; - else + } else { sock->ops = &rawsock_ops; + } sk = sk_alloc(net, PF_NFC, GFP_ATOMIC, nfc_proto->proto, kern); if (!sk) |