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CVE-2022-49991 is a Linux kernel hugetlb memory-management flaw in hugetlb_mcopy_atomic_pte. In the MCOPY_ATOMIC_CONTINUE path for a non-shared VMA, page-cache pages installed into page-table entries are incorrectly treated as newly anonymous mapped huge pages. The kernel consequently invokes hugepage_add_new_anon_rmap, corrupting the page->mapping field relied upon by page-cache code.
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A Linux kernel hugetlb memory-management flaw that can corrupt page->mapping in hugetlb_mcopy_atomic_pte.
A Linux kernel hugetlb memory-management flaw that can corrupt page->mapping in hugetlb_mcopy_atomic_pte.
A Linux kernel hugetlb memory-management flaw in hugetlb_mcopy_atomic_pte. In the MCOPY_ATOMIC_CONTINUE path for a non-shared VMA, page-cache pages can incorrectly receive anonymous reverse mapping, corrupting their page->mapping metadata.
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Cross-references every affected SKU, including bundled OEM variants.
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