[NetLabel]: protect the CIPSOv4 socket option from setsockopt()

[powerpc.git] / net / ipv4 / cipso_ipv4.c

diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index e2077a3..6460233 100644 (file)
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1307,7 +1307,8 @@ int cipso_v4_socket_setattr(const struct socket *sock,
 
        /* We can't use ip_options_get() directly because it makes a call to
         * ip_options_get_alloc() which allocates memory with GFP_KERNEL and
-        * we can't block here. */
+        * we won't always have CAP_NET_RAW even though we _always_ want to
+        * set the IPOPT_CIPSO option. */
        opt_len = (buf_len + 3) & ~3;
        opt = kzalloc(sizeof(*opt) + opt_len, GFP_ATOMIC);
        if (opt == NULL) {
@@ -1317,11 +1318,9 @@ int cipso_v4_socket_setattr(const struct socket *sock,
        memcpy(opt->__data, buf, buf_len);
        opt->optlen = opt_len;
        opt->is_data = 1;
+       opt->cipso = sizeof(struct iphdr);
        kfree(buf);
        buf = NULL;
-       ret_val = ip_options_compile(opt, NULL);
-       if (ret_val != 0)
-               goto socket_setattr_failure;
 
        sk_inet = inet_sk(sk);
        if (sk_inet->is_icsk) {