Re: [syzbot] [crypto?] KASAN: slab-use-after-free Read in handle_mm_fault

["Jason A. Donenfeld" <Jason@xxxxxxxxx>]

Hi Suren,

On Thu, Jul 18, 2024 at 6:49 PM Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
> > > Warning: It is no longer safe to dereference vma-> after this point, because mmap_lock is dropped, so vma might be destroyed from underneath us.
>
> Better but I would change "mmap_lock is dropped" to "mmap_lock might
> have been dropped by __handle_mm_fault()" because mmap_lock is not
> always dropped by __handle_mm_fault(). Technicality but better be
> clear about it.
> With that changed feel free to add:
>
> Reviewed-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>

Will do.

Thanks,
Jason