Oleg Nesterov <o...@redhat.com> writes:

> alloc_pid() does get_pid_ns() beforehand but forgets to put_pid_ns()
> if it fails because disable_pid_allocation() was called by the exiting
> child_reaper.
>
> We could simply move get_pid_ns() down to successful return, but this
> fix tries to be as trivial as possible.
>
> Signed-off-by: Oleg Nesterov <o...@redhat.com>
> Cc: sta...@vger.kernel.org
Reviewed-by: "Eric W. Biederman" <ebied...@xmission.com>
> ---
>  kernel/pid.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/kernel/pid.c b/kernel/pid.c
> index 9b9a266..82430c8 100644
> --- a/kernel/pid.c
> +++ b/kernel/pid.c
> @@ -341,6 +341,8 @@ out:
>  
>  out_unlock:
>       spin_unlock_irq(&pidmap_lock);
> +     put_pid_ns(ns);
> +
>  out_free:
>       while (++i <= ns->level)
>               free_pidmap(pid->numbers + i);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to