CVE-2026-97523 Affecting kernel-uek-debug-devel package, versions <0:6.12.0-207.111.5.1.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.67% (51st percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKDEBUGDEVEL-20637167
  • published8 Oct 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

NewCVE-2026-97523  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-debug-devel to version 0:6.12.0-207.111.5.1.el9uek 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-devel package and not the kernel-uek-debug-devel 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:

mptcp: close race between scheduler and state change

The mptcp scheduler may race with subflow sockets state change: data transmission on the selected socket may fail and a later release could try to use mss_now reset to 0 for a divide operation.

Address the issue by explicitly checking for the critical scenario.

CVSS Base Scores

version 3.1