diff mbox series

net/bluetooth/hci_sock.c: add CAP_NET_RAW check.

Message ID 20200818075648.GA29124@oppo
State New
Headers show
Series net/bluetooth/hci_sock.c: add CAP_NET_RAW check. | expand

Commit Message

Qingyu Li Aug. 18, 2020, 7:56 a.m. UTC 
When creating a raw PF_BLUETOOTH socket,
CAP_NET_RAW needs to be checked first.

Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com>
---
 net/bluetooth/hci_sock.c | 3 +++
 1 file changed, 3 insertions(+)

--
2.17.1
diff mbox series

Patch

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 251b9128f530..c0919e209f05 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -2034,6 +2034,9 @@  static int hci_sock_create(struct net *net, struct socket *sock, int protocol,
 	if (sock->type != SOCK_RAW)
 		return -ESOCKTNOSUPPORT;

+	if (!capable(CAP_NET_RAW))
+		return -EPERM;
+
 	sock->ops = &hci_sock_ops;

 	sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto, kern);