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 13:09:31 +0200 |
| commit | 50dddec689cb2105f6bccf4a2c6fe43dcc3295d7 (patch) | |
| tree | 36eed39a7be0b0d09cd5df18eb9c440655875a6d /drivers/isdn | |
| parent | f06b0b3e5d7674cdd1ea938b60bfa867017556c9 (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')
| -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 a73337b74f41..db588a79a9f0 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -764,6 +764,8 @@ 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) |