Re: [PATCH] mm: fix racing of vb->va when kasan enabled

[Uladzislau Rezki]

> > >
> > Is it easy to reproduce? If so could you please describe the steps? As i see
> > the freeing of the "vb" is RCU safe whereas vb->va is not. But from the first
> > glance i do not see how it can accessed twice. Hm..
> It was raised from a monkey test on A13_k515 system and got 1/20 pcs
> failed. IMO, vb->va which out of vmap_purge_lock protection could race
> with a concurrent ra freeing within __purge_vmap_area_lazy.
>
Do you have exact steps how you run "monkey" test?

-- 
Uladzislau Rezki