CVE-2026-23034 Affecting kernel-doc package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.18% (8th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-CENTOS10-KERNELDOC-15173085
  • published2 Aug 2026
  • disclosed31 Jan 2026

Introduced: 31 Jan 2026

CVE-2026-23034  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 kernel-doc.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

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

drm/amdgpu/userq: Fix fence reference leak on queue teardown v2

The user mode queue keeps a pointer to the most recent fence in userq->last_fence. This pointer holds an extra dma_fence reference.

When the queue is destroyed, we free the fence driver and its xarray, but we forgot to drop the last_fence reference.

Because of the missing dma_fence_put(), the last fence object can stay alive when the driver unloads. This leaves an allocated object in the amdgpu_userq_fence slab cache and triggers

This is visible during driver unload as:

BUG amdgpu_userq_fence: Objects remaining on __kmem_cache_shutdown() kmem_cache_destroy amdgpu_userq_fence: Slab cache still has objects Call Trace: kmem_cache_destroy amdgpu_userq_fence_slab_fini amdgpu_exit __do_sys_delete_module

Fix this by putting userq->last_fence and clearing the pointer during amdgpu_userq_fence_driver_free().

This makes sure the fence reference is released and the slab cache is empty when the module exits.

v2: Update to only release userq->last_fence with dma_fence_put() (Christian)

(cherry picked from commit 8e051e38a8d45caf6a866d4ff842105b577953bb)

CVSS Base Scores

version 3.1