diff options
Diffstat (limited to 'security/selinux/netnode.c')
| -rw-r--r-- | security/selinux/netnode.c | 42 |
1 files changed, 15 insertions, 27 deletions
diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c index afa0d432436b0..9ab84efa46c7e 100644 --- a/security/selinux/netnode.c +++ b/security/selinux/netnode.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Network node table * @@ -11,21 +12,10 @@ * This code is heavily based on the "netif" concept originally developed by * James Morris <jmorris@redhat.com> * (see security/selinux/netif.c for more information) - * */ /* * (c) Copyright Hewlett-Packard Development Company, L.P., 2007 - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/types.h> @@ -199,9 +189,9 @@ static void sel_netnode_insert(struct sel_netnode *node) */ static int sel_netnode_sid_slow(void *addr, u16 family, u32 *sid) { - int ret = -ENOMEM; + int ret; struct sel_netnode *node; - struct sel_netnode *new = NULL; + struct sel_netnode *new; spin_lock_bh(&sel_netnode_lock); node = sel_netnode_find(addr, family); @@ -210,38 +200,36 @@ static int sel_netnode_sid_slow(void *addr, u16 family, u32 *sid) spin_unlock_bh(&sel_netnode_lock); return 0; } + new = kzalloc(sizeof(*new), GFP_ATOMIC); - if (new == NULL) - goto out; switch (family) { case PF_INET: ret = security_node_sid(&selinux_state, PF_INET, addr, sizeof(struct in_addr), sid); - new->nsec.addr.ipv4 = *(__be32 *)addr; + if (new) + new->nsec.addr.ipv4 = *(__be32 *)addr; break; case PF_INET6: ret = security_node_sid(&selinux_state, PF_INET6, addr, sizeof(struct in6_addr), sid); - new->nsec.addr.ipv6 = *(struct in6_addr *)addr; + if (new) + new->nsec.addr.ipv6 = *(struct in6_addr *)addr; break; default: BUG(); ret = -EINVAL; } - if (ret != 0) - goto out; - - new->nsec.family = family; - new->nsec.sid = *sid; - sel_netnode_insert(new); + if (ret == 0 && new) { + new->nsec.family = family; + new->nsec.sid = *sid; + sel_netnode_insert(new); + } else + kfree(new); -out: spin_unlock_bh(&sel_netnode_lock); - if (unlikely(ret)) { + if (unlikely(ret)) pr_warn("SELinux: failure in %s(), unable to determine network node label\n", __func__); - kfree(new); - } return ret; } |