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| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-09-24 16:37:18 +0200 |
| commit | b91ee4aa2a2199ba4d4650706c272985a5a32d80 (patch) | |
| tree | 8cb6491912c098e9f31289e4d7d6412f8289507e | |
| parent | net: sched: fix possible crash in tcf_action_destroy() (diff) | |
| download | linux-b91ee4aa2a2199ba4d4650706c272985a5a32d80.tar.xz linux-b91ee4aa2a2199ba4d4650706c272985a5a32d80.zip | |
mISDN: enforce CAP_NET_RAW for raw sockets
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>
| -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 c6ba37df4b9d..dff4132b3702 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -754,6 +754,8 @@ 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) |