goto out;
}
}
+
+ /*
+ * If this is a user namespace mount, no contexts are allowed
+ * on the command line and security labels must be ignored.
+ */
+ if (sb->s_user_ns != &init_user_ns) {
+ if (context_sid || fscontext_sid || rootcontext_sid ||
+ defcontext_sid) {
+ rc = -EACCES;
+ goto out;
+ }
+ if (sbsec->behavior == SECURITY_FS_USE_XATTR) {
+ sbsec->behavior = SECURITY_FS_USE_MNTPOINT;
+ rc = security_transition_sid(current_sid(), current_sid(),
+ SECCLASS_FILE, NULL,
+ &sbsec->mntpoint_sid);
+ if (rc)
+ goto out;
+ }
+ goto out_set_opts;
+ }
+
/* sets the context of the superblock for the fs being mounted. */
if (fscontext_sid) {
rc = may_context_mount_sb_relabel(fscontext_sid, sbsec, cred);
sbsec->def_sid = defcontext_sid;
}
+out_set_opts:
rc = sb_finish_set_opts(sb);
out:
mutex_unlock(&sbsec->lock);
const struct task_security_struct *new_tsec)
{
int nnp = (bprm->unsafe & LSM_UNSAFE_NO_NEW_PRIVS);
- int nosuid = (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID);
+ int nosuid = !mnt_may_suid(bprm->file->f_path.mnt);
int rc;
if (!nnp && !nosuid)
err = selinux_inet_sys_rcv_skb(sock_net(sk), skb->skb_iif,
addrp, family, peer_sid, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 0);
+ selinux_netlbl_err(skb, family, err, 0);
return err;
}
err = avc_has_perm(sk_sid, peer_sid, SECCLASS_PEER,
PEER__RECV, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 0);
+ selinux_netlbl_err(skb, family, err, 0);
return err;
}
}
err = selinux_inet_sys_rcv_skb(dev_net(indev), indev->ifindex,
addrp, family, peer_sid, &ad);
if (err) {
- selinux_netlbl_err(skb, err, 1);
+ selinux_netlbl_err(skb, family, err, 1);
return NF_DROP;
}
}
return selinux_ip_output(skb, PF_INET);
}
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static unsigned int selinux_ipv6_output(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
+{
+ return selinux_ip_output(skb, PF_INET6);
+}
+#endif /* IPV6 */
+
static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
int ifindex,
u16 family)
.hooknum = NF_INET_FORWARD,
.priority = NF_IP6_PRI_SELINUX_FIRST,
},
+ {
+ .hook = selinux_ipv6_output,
+ .pf = NFPROTO_IPV6,
+ .hooknum = NF_INET_LOCAL_OUT,
+ .priority = NF_IP6_PRI_SELINUX_FIRST,
+ },
#endif /* IPV6 */
};