From: Ori Nimron <orinimron123@xxxxxxxxx> [ Upstream commit 3a359798b176183ef09efb7a3dc59abad1cc7104 ] When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Ori Nimron <orinimron123@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/nfc/llcp_sock.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -1012,10 +1012,13 @@ static int llcp_sock_create(struct net * 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)