CVE-2025-39754 Affecting kernel-uek package, versions <0:6.12.0-104.43.4.2.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.03% (6th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEK-13568203
  • published16 Oct 2025
  • disclosed11 Sept 2025

Introduced: 11 Sep 2025

CVE-2025-39754  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek to version 0:6.12.0-104.43.4.2.el9uek or higher.
This issue was patched in ELSA-2025-20662.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

mm/smaps: fix race between smaps_hugetlb_range and migration

smaps_hugetlb_range() handles the pte without holdling ptl, and may be concurrenct with migration, leaing to BUG_ON in pfn_swap_entry_to_page(). The race is as follows.

smaps_hugetlb_range migrate_pages huge_ptep_get remove_migration_ptes folio_unlock pfn_swap_entry_folio BUG_ON

To fix it, hold ptl lock in smaps_hugetlb_range().

CVSS Base Scores

version 3.1