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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-63953

mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a30b48bf1b244f11bf9b6d20cdccfe0c2264130c to < 24861d04f197bb651e9dfb211978271c15f75a98affected
  • a30b48bf1b244f11bf9b6d20cdccfe0c2264130c to < 2c6f81d58741349298f51ff697d988cb42881453affected

Linux Linux

Default version status: affected

  • 6.19affected
  • 0 to < 6.19unaffected
  • 7.0.12 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References