CVE-2026-72172 Affecting kernel-uek-debug-modules-desktop package, versions <0:6.12.0-206.104.3.3.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.18% (7th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKDEBUGMODULESDESKTOP-19597025
  • published5 Sept 2026
  • disclosed15 Aug 2026

Introduced: 15 Aug 2026

CVE-2026-72172  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-debug-modules-desktop to version 0:6.12.0-206.104.3.3.el9uek or higher.
This issue was patched in ELSA-2026-500248.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-modules-desktop package and not the kernel-uek-debug-modules-desktop 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/mm_init: fix uninitialized struct pages for ZONE_DEVICE

If DAX memory is hotplugged into an unoccupied subsection of an early section, section_activate() reuses the unoptimized boot memmap. However, compound_nr_pages() still assumes that vmemmap optimization is in effect and initializes only the reduced number of struct pages. As a result, the remaining tail struct pages are left uninitialized, which can later lead to unexpected behavior or crashes.

Fix this by treating early sections as unoptimized when calculating how many struct pages to initialize.

CVSS Base Scores

version 3.1