Commit 3949e287 authored by Mostafa Saleh's avatar Mostafa Saleh Committed by Oliver Upton
Browse files

KVM: arm64: Fix memory check in host_stage2_set_owner_locked() 



I found this simple bug while preparing some patches for pKVM.
AFAICT, it should be harmless (besides crashing the kernel if it
was misbehaving)

Fixes: e94a7dea ("KVM: arm64: Move host page ownership tracking to the hyp vmemmap")
Signed-off-by: default avatarMostafa Saleh <smostafa@google.com>
Link: https://lore.kernel.org/r/20250501162450.2784043-1-smostafa@google.com


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent ef296ee9

arch/arm64/kvm/hyp/nvhe/mem_protect.c

+1 −1
Original line number Diff line number Diff line
@@ -503,7 +503,7 @@ int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id) 
{

	int ret;



	if (!addr_is_memory(addr))

	if (!range_is_memory(addr, addr + size))

		return -EPERM;



	ret = host_stage2_try(kvm_pgtable_stage2_set_owner, &host_mmu.pgt,