kfence: improve the performance of
> __kfence_alloc() and __kfence_free()")
> Signed-off-by: Michael Ellerman
>
Reviewed-by: Alexander Potapenko
On Wed, Nov 2, 2022 at 3:27 PM Alexander Potapenko wrote:
>
> On Fri, Oct 28, 2022 at 6:14 PM Luck, Tony wrote:
> >
> > >> +vfrom = kmap_local_page(from);
> > >> +vto = kmap_local_page(to);
> > >> +ret = copy_mc_to_kernel(vto, vfro
atus of that buffer may get
stale.
> > Anyway, this patch looks good to me. Thanks.
> >
> > Reviewed-by: Miaohe Lin
>
> Thanks for the review.
>
> -Tony
--
Alexander Potapenko
Software Engineer
Google Germany GmbH
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80636 München
Geschäftsführer: Paul Manicle, Liana Sebastian
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Sitz der Gesellschaft: Hamburg
On Thu, Sep 30, 2021 at 9:09 AM Kefeng Wang wrote:
>
> Directly use is_kernel() helper in kernel_or_module_addr().
>
> Cc: Andrey Ryabinin
> Cc: Alexander Potapenko
> Cc: Andrey Konovalov
> Cc: Dmitry Vyukov
> Signed-off-by: Kefeng Wang
Reviewed-by: Alexander Potap
> [ 14.998426] BUG: KFENCE: invalid read in
> finish_task_switch.isra.0+0x54/0x23c
> [ 14.998426]
> [ 15.007061] Invalid read at 0x(ptrval):
> [ 15.010906] finish_task_switch.isra.0+0x54/0x23c
> [ 15.015633] kunit_try_run_case+0x5c/0xd0
> [ 15.019682] kunit_generic_run_threadfn_adap
