NULL Pointer Dereference Affecting kernel-uek-debug package, versions <0:6.12.0-103.40.4.1.el9uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELUEKDEBUG-12591372
  • published10 Sept 2025
  • disclosed3 Jul 2025

Introduced: 3 Jul 2025

CVE-2025-38134  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-uek-debug to version 0:6.12.0-103.40.4.1.el9uek or higher.
This issue was patched in ELSA-2025-20551.

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:9 relevant fixed versions and status.

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

usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()

As demonstrated by the fix for update_port_device_state, commit 12783c0b9e2c ("usb: core: Prevent null pointer dereference in update_port_device_state"), usb_hub_to_struct_hub() can return NULL in certain scenarios, such as during hub driver unbind or teardown race conditions, even if the underlying usb_device structure exists.

Plus, all other places that call usb_hub_to_struct_hub() in the same file do check for NULL return values.

If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub->ports[udev->portnum - 1] will cause a null pointer dereference.

CVSS Base Scores

version 3.1