On Mon, Aug 02, 2021 at 01:38:30PM +0100, Marc Zyngier wrote:
> Booting a KVM host in protected mode with kmemleak quickly results
> in a pretty bad crash, as kmemleak doesn't know that the HYP sections
> have been taken away. This is specially true for the BSS section,
> which is part of the kernel BSS section and registered at boot time
> by kmemleak itself.
>
> Unregister the HYP part of the BSS before making that section
> HYP-private. The rest of the HYP-specific data is obtained via
> the page allocator or lives in other sections, none of which is
> subjected to kmemleak.
>
> Fixes: 90134ac9cabb ("KVM: arm64: Protect the .hyp sections from the host")
> Reviewed-by: Quentin Perret <qperret@xxxxxxxxxx>
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx # 5.13
Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
