Riskcovery

CVE-2026-63953

mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page

State
Published
Severity
Not scored
Published
Jul 19, 2026
Updated
Jul 19, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • a30b48bf1b244f11bf9b6d20cdccfe0c2264130c to before 24861d04f197bb651e9dfb211978271c15f75a98Affected
  • a30b48bf1b244f11bf9b6d20cdccfe0c2264130c to before 2c6f81d58741349298f51ff697d988cb42881453Affected
LinuxLinux
  • 6.19Affected
  • before 6.19Not affected
  • 7.0.12 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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