On 02/18, Sukadev Bhattiprolu wrote:
>
> read_lock(&tasklist_lock);
> nr = next_pidmap(pid_ns, 1);
> while (nr > 0) {
> - kill_proc_info(SIGKILL, SEND_SIG_PRIV, nr);
> + rcu_read_lock();
> +
> + /*
> + * Use force_sig() since it clears SIGNAL_UNKILLABLE ensuring
> + * any nested-container's init processes don't ignore the
> + * signal
> + */
> + task = pid_task(find_vpid(nr), PIDTYPE_PID);
> + force_sig(SIGKILL, task);
Shouldn't we check task != NULL ?
Oleg.
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