CVE-2025-40024 Affecting kernel-macros package, versions <6.4.0-150700.53.28.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-SLES157-KERNELMACROS-15140448
  • published29 Jan 2026
  • disclosed28 Jan 2026

Introduced: 28 Jan 2026

CVE-2025-40024  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-macros to version 6.4.0-150700.53.28.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-macros package and not the kernel-macros package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

vhost: Take a reference on the task in struct vhost_task.

vhost_task_create() creates a task and keeps a reference to its task_struct. That task may exit early via a signal and its task_struct will be released. A pending vhost_task_wake() will then attempt to wake the task and access a task_struct which is no longer there.

Acquire a reference on the task_struct while creating the thread and release the reference while the struct vhost_task itself is removed. If the task exits early due to a signal, then the vhost_task_wake() will still access a valid task_struct. The wake is safe and will be skipped in this case.

CVSS Base Scores

version 3.1