NULL Pointer Dereference Affecting kernel-source-azure package, versions <6.4.0-150600.8.52.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-SLES156-KERNELSOURCEAZURE-13621722
  • published18 Oct 2025
  • disclosed17 Oct 2025

Introduced: 17 Oct 2025

CVE-2025-39920  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-source-azure to version 6.4.0-150600.8.52.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source-azure package and not the kernel-source-azure package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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

pcmcia: Add error handling for add_interval() in do_validate_mem()

In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next.

This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.

CVSS Base Scores

version 3.1