Prevent the walker from running into weeds when walking an entire address range.
Fixes: b1e57de62cfb4 ("KVM: arm64: Add stand-alone page-table walker infrastructure") Cc: stable@vger.kernel.org Signed-off-by: Sebastian Ene sebastianene@google.com --- arch/arm64/kvm/hyp/pgtable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c index 40bd55966..2ffb5571e 100644 --- a/arch/arm64/kvm/hyp/pgtable.c +++ b/arch/arm64/kvm/hyp/pgtable.c @@ -260,7 +260,7 @@ static int _kvm_pgtable_walk(struct kvm_pgtable *pgt, struct kvm_pgtable_walk_da { u32 idx; int ret = 0; - u64 limit = BIT(pgt->ia_bits); + u64 limit = BIT(pgt->ia_bits) - 1;
if (data->addr > limit || data->end > limit) return -ERANGE;