Use After Free Affecting kernel-uek-debug-modules-deprecated package, versions <0:6.12.0-201.74.2.1.el10uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEKDEBUGMODULESDEPRECATED-15861024
  • published1 Apr 2026
  • disclosed18 Feb 2026

Introduced: 18 Feb 2026

CVE-2026-23223  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek-debug-modules-deprecated to version 0:6.12.0-201.74.2.1.el10uek or higher.
This issue was patched in ELSA-2026-50232.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-modules-deprecated package and not the kernel-uek-debug-modules-deprecated 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:

xfs: fix UAF in xchk_btree_check_block_owner

We cannot dereference bs->cur when trying to determine if bs->cur aliases bs->sc->sa.{bno,rmap}_cur after the latter has been freed. Fix this by sampling before type before any freeing could happen. The correct temporal ordering was broken when we removed xfs_btnum_t.

CVSS Base Scores

version 3.1