CVE-2026-63953 — mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page
In the Linux kernel, the following vulnerability has been resolved: mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page When migrate_vma_insert_huge_pmd_pa…
Published: 2026-07-19 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page When migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due to a PMD check failure, the pgtable allocated earlier via pte_alloc_one() is never freed, causing a memory leak. Added free_abort label to release the pgtable in error path.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7