CVE-2025-39681 Affecting kernel-uek64k-modules-usb package, versions <0:6.12.0-105.51.5.el10uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE10-KERNELUEK64KMODULESUSB-13869907
  • published10 Nov 2025
  • disclosed5 Sept 2025

Introduced: 5 Sep 2025

CVE-2025-39681  (opens in a new tab)

How to fix?

Upgrade Oracle:10 kernel-uek64k-modules-usb to version 0:6.12.0-105.51.5.el10uek or higher.
This issue was patched in ELSA-2025-25754.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek64k-modules-usb package and not the kernel-uek64k-modules-usb 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:

x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper

Since

923f3a2b48bd ("x86/resctrl: Query LLC monitoring properties once during boot")

resctrl_cpu_detect() has been moved from common CPU initialization code to the vendor-specific BSP init helper, while Hygon didn't put that call in their code.

This triggers a division by zero fault during early booting stage on our machines with X86_FEATURE_CQM* supported, where get_rdt_mon_resources() tries to calculate mon_l3_config with uninitialized boot_cpu_data.x86_cache_occ_scale.

Add the missing resctrl_cpu_detect() in the Hygon BSP init helper.

[ bp: Massage commit message. ]

CVSS Base Scores

version 3.1