if (ret < 0)
goto invalid_key;
+ key->last_used_at = current_kernel_time().tv_sec;
+
error:
put_cred(cred);
return key_ref;
* Replace a process's session keyring on behalf of one of its children when
* the target process is about to resume userspace execution.
*/
-void key_replace_session_keyring(void)
+void key_change_session_keyring(struct task_work *twork)
{
- const struct cred *old;
- struct cred *new;
+ const struct cred *old = current_cred();
+ struct cred *new = twork->data;
- if (!current->replacement_session_keyring)
- return;
-
- write_lock_irq(&tasklist_lock);
- new = current->replacement_session_keyring;
- current->replacement_session_keyring = NULL;
- write_unlock_irq(&tasklist_lock);
-
- if (!new)
+ kfree(twork);
+ if (unlikely(current->flags & PF_EXITING)) {
+ put_cred(new);
return;
+ }
- old = current_cred();
new-> uid = old-> uid;
new-> euid = old-> euid;
new-> suid = old-> suid;
new-> sgid = old-> sgid;
new->fsgid = old->fsgid;
new->user = get_uid(old->user);
- new->user_ns = new->user->user_ns;
+ new->user_ns = get_user_ns(new->user_ns);
new->group_info = get_group_info(old->group_info);
new->securebits = old->securebits;