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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
a30b48bf1b244f11bf9b6d20cdccfe0c2264130c affected < 24861d04f197bb651e9dfb211978271c15f75a98
a30b48bf1b244f11bf9b6d20cdccfe0c2264130c affected < 2c6f81d58741349298f51ff697d988cb42881453
Linux Linux affected
Version Status Constraints
6.19 affected —
0 unaffected < 6.19
7.0.12 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

No data.

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Fixes

Solution

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/24861d04f197bb651e9dfb211978271c15f75a98 cve-icon
https://git.kernel.org/stable/c/2c6f81d58741349298f51ff697d988cb42881453 cve-icon
History

Sun, 19 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-19T14:55:45.509Z

Reserved: 2026-07-19T07:54:57.023Z

Link: CVE-2026-63953

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.