| Message ID | 20200810015100.GA11939@oppo |
|---|---|
| State | Accepted |
| Delegated to: | David Miller |
| Headers | show |
| Series | net/nfc/rawsock.c: add CAP_NET_RAW check. | expand |
From: Qingyu Li <ieatmuttonchuan@gmail.com> Date: Mon, 10 Aug 2020 09:51:00 +0800 > When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first. > > Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com> Applied and queued up for -stable, thank you.
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)
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com> --- net/nfc/rawsock.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)