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-rw-r--r--security/selinux/hooks.c9
-rw-r--r--security/selinux/include/classmap.h2
2 files changed, 11 insertions, 0 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 79573504783b..b9f1078450b3 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4221,6 +4221,14 @@ static void selinux_task_to_inode(struct task_struct *p,
spin_unlock(&isec->lock);
}
+static int selinux_userns_create(const struct cred *cred)
+{
+ u32 sid = current_sid();
+
+ return avc_has_perm(&selinux_state, sid, sid, SECCLASS_USER_NAMESPACE,
+ USER_NAMESPACE__CREATE, NULL);
+}
+
/* Returns error only if unable to parse addresses */
static int selinux_parse_skb_ipv4(struct sk_buff *skb,
struct common_audit_data *ad, u8 *proto)
@@ -7111,6 +7119,7 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(task_movememory, selinux_task_movememory),
LSM_HOOK_INIT(task_kill, selinux_task_kill),
LSM_HOOK_INIT(task_to_inode, selinux_task_to_inode),
+ LSM_HOOK_INIT(userns_create, selinux_userns_create),
LSM_HOOK_INIT(ipc_permission, selinux_ipc_permission),
LSM_HOOK_INIT(ipc_getsecid, selinux_ipc_getsecid),
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index ff757ae5f253..0bff55bb9cde 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -254,6 +254,8 @@ const struct security_class_mapping secclass_map[] = {
{ COMMON_FILE_PERMS, NULL } },
{ "io_uring",
{ "override_creds", "sqpoll", NULL } },
+ { "user_namespace",
+ { "create", NULL } },
{ NULL }
};