On Fri, 8 Jan 2021 at 11:59, Arnd Bergmann wrote:
>
> On Fri, Jan 8, 2021 at 11:44 AM Herbert Xu
> wrote:
> >
> > On Fri, Jan 08, 2021 at 11:42:53AM +0100, Arnd Bergmann wrote:
> > >
> > > How does this work for kernels with CONFIG_VMAP_STACK?
> > > I remember some other subsystems (usb, hid) ad
On Fri, Jan 8, 2021 at 11:44 AM Herbert Xu wrote:
>
> On Fri, Jan 08, 2021 at 11:42:53AM +0100, Arnd Bergmann wrote:
> >
> > How does this work for kernels with CONFIG_VMAP_STACK?
> > I remember some other subsystems (usb, hid) adding workarounds
> > for that, but I don't see those in drivers/cryp
On Fri, Jan 08, 2021 at 11:42:53AM +0100, Arnd Bergmann wrote:
>
> How does this work for kernels with CONFIG_VMAP_STACK?
> I remember some other subsystems (usb, hid) adding workarounds
> for that, but I don't see those in drivers/crypto
I'm referring to the situation in general and not the subje
On Fri, Jan 8, 2021 at 10:22 AM Herbert Xu wrote:
>
> On Fri, Jan 08, 2021 at 09:36:23AM +0100, Ard Biesheuvel wrote:
> >
> > scatterlists, and I don't think we permit pointing the scatterlist
> > into request structures)
>
> Not only do we allow that, we do that in lots of places.
How does this
On Fri, 8 Jan 2021 at 10:23, Herbert Xu wrote:
>
> On Fri, Jan 08, 2021 at 09:36:23AM +0100, Ard Biesheuvel wrote:
> >
> > scatterlists, and I don't think we permit pointing the scatterlist
> > into request structures)
>
> Not only do we allow that, we do that in lots of places.
>
Fair enough. So
On Fri, Jan 08, 2021 at 09:36:23AM +0100, Ard Biesheuvel wrote:
>
> scatterlists, and I don't think we permit pointing the scatterlist
> into request structures)
Not only do we allow that, we do that in lots of places.
Cheers,
--
Email: Herbert Xu
Home Page: http://gondor.apana.org.au/~herbert/
On Thu, 7 Jan 2021 at 20:02, Eric Biggers wrote:
>
> On Thu, Jan 07, 2021 at 01:41:28PM +0100, Ard Biesheuvel wrote:
> > Unlike many other structure types defined in the crypto API, the
> > 'shash_desc' structure is permitted to live on the stack, which
> > implies its contents may not be accessed
On Thu, Jan 07, 2021 at 01:41:28PM +0100, Ard Biesheuvel wrote:
> Unlike many other structure types defined in the crypto API, the
> 'shash_desc' structure is permitted to live on the stack, which
> implies its contents may not be accessed by DMA masters. (This is
> due to the fact that the stack m
