Hi all,
Peter noticed that with some dumb luck you can toast the kernel address
space with exported vmalloc symbols.
I used this as an opportunity to decruft the vmalloc.c API and make it
much more systematic. This also removes any chance to create vmalloc
mappings outside the designated areas o
On Wed, Apr 08, 2020 at 05:03:24PM +0100, Russell King - ARM Linux admin wrote:
> I haven't read all your patches yet.
>
> Have you tested it on 32-bit ARM, where the module area is located
> _below_ PAGE_OFFSET and outside of the vmalloc area?
I have not tested it. However existing in-kernel us
On Wed, Apr 08, 2020 at 01:58:58PM +0200, Christoph Hellwig wrote:
> Hi all,
>
> Peter noticed that with some dumb luck you can toast the kernel address
> space with exported vmalloc symbols.
>
> I used this as an opportunity to decruft the vmalloc.c API and make it
> much more systematic. This
On Wed, Apr 08, 2020 at 01:58:58PM +0200, Christoph Hellwig wrote:
> Hi all,
>
> Peter noticed that with some dumb luck you can toast the kernel address
> space with exported vmalloc symbols.
>
> I used this as an opportunity to decruft the vmalloc.c API and make it
> much more systematic. This
Hi all,
Peter noticed that with some dumb luck you can toast the kernel address
space with exported vmalloc symbols.
I used this as an opportunity to decruft the vmalloc.c API and make it
much more systematic. This also removes any chance to create vmalloc
mappings outside the designated areas o