From: Ori Nimron <[email protected]> [ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ]
When creating a raw AF_ISDN socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Ori Nimron <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/isdn/mISDN/socket.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -766,6 +766,8 @@ base_sock_create(struct net *net, struct 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)
