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    SubjectRe: [bugfix] try_to_unmap_cluster() passes out-of-bounds pte to pte_unmap()
    William Lee Irwin III <wli@holomorphy.com> wrote:
    >
    > try_to_unmap_cluster() does:
    > for (pte = pte_offset_map(pmd, address);
    > address < end; pte++, address += PAGE_SIZE) {
    > ...
    > }
    >
    > pte_unmap(pte);
    >
    > It may take a little staring to notice, but pte can actually fall off
    > the end of the pte page in this iteration,

    That's about the third place we've had this bug. Whoever keeps adding it
    really should stop.

    Thanks.
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