CVE-2026-72438 Affecting kernel-uek-debug package, versions <0:6.12.0-207.111.5.1.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.5% (43rd percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUG-20617366
  • published8 Oct 2026
  • disclosed15 Aug 2026

Introduced: 15 Aug 2026

CVE-2026-72438  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug to version 0:6.12.0-207.111.5.1.el10uek or higher.
This issue was patched in ELSA-2026-500374.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug package and not the kernel-uek-debug package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

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

md/raid10: fix writes_pending and barrier reference leaks on discard failures

raid10_make_request() acquires a writes_pending reference with md_write_start() before calling raid10_handle_discard(). Several failure paths in raid10_handle_discard() complete the bio and return without releasing the corresponding reference, causing md_write_end() to be skipped.

Call md_write_end() before returning from these failure paths to keep writes_pending accounting balanced.

Additionally, discard split allocation failures can occur after wait_barrier() succeeds. Those paths return without calling allow_barrier(), leaking the associated barrier reference.

Release the barrier before returning from those paths.

CVSS Base Scores

version 3.1