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@google.com Signed-off-by: Marc Zyngier maz@kernel.org Cc: Catalin Marinas catalin.marinas@arm.com Cc: stable@vger.kernel.org # 5.13
Reviewed-by: Catalin Marinas catalin.marinas@arm.com