[PATCHv5][PING^3][BZ #17833] _dl_close_worker() does not release inconsistent objects.

[Andreas Schwab]

Pavel Kopyl <p.kopyl@samsung.com> writes:

> @@ -152,6 +152,10 @@ _dl_close_worker (struct link_map *map)
>        l->l_idx = idx;
>        maps[idx] = l;
>        ++idx;
> +
> +      /* clear DF_1_NODELETE to force object deletion.  */
> +      if (force)
> +	l->l_flags_1 &= ~DF_1_NODELETE;

This is a very bad idea.  It can cause libpthread to be unloaded, which
will crash ld.so on the next __rtld_lock_unlock.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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