diff options
| author | Ori Nimron <orinimron123@gmail.com> | 2019-09-20 09:35:45 +0200 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2019-11-15 00:56:55 +0000 |
| commit | f49bd6510620b9cd434b87bea639f07dfde56f09 (patch) | |
| tree | ec996b5d179751c01447f961a0563614b1f974aa | |
| parent | 2d4020439bd19f2a498a7fccd8755521a90b2886 (diff) | |
mISDN: enforce CAP_NET_RAW for raw sockets
commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 upstream.
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: Ben Hutchings <ben@decadent.org.uk>
| -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 1be82284cf9d..be13516660c6 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) if (sock->type != SOCK_RAW) return -ESOCKTNOSUPPORT; + if (!capable(CAP_NET_RAW)) + return -EPERM; sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto); if (!sk) |