diff options
| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-05 12:27:42 +0200 |
| commit | a03818269bfbc2ff6d25e3e44eb2247df53648ca (patch) | |
| tree | 3f90d9332e8d9e09acc6e482e495f07946fe50c6 /drivers/isdn/mISDN | |
| parent | a4d63b4102316eb10cc1bf37274d50a4d4f8962c (diff) | |
mISDN: enforce CAP_NET_RAW for raw sockets
[ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ]
When creating a raw AF_ISDN 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 'drivers/isdn/mISDN')
| -rw-r--r-- | drivers/isdn/mISDN/socket.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 8cbb75d09a1d..75962c62304d 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -763,6 +763,8 @@ base_sock_create(struct net *net, struct socket *sock, int protocol, int kern) if (sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; + if (!capable(CAP_NET_RAW)) + return -EPERM; sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern); if (!sk) |