CVE-2026-52987 Affecting kernel-debug package, versions *


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-CENTOS6-KERNELDEBUG-17659079
  • published5 Aug 2026
  • disclosed24 Jun 2026

Introduced: 24 Jun 2026

CVE-2026-52987  (opens in a new tab)
CWE-1341  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 kernel-debug.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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

drm/amdgpu: avoid double drm_exec_fini() in userq validate

When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec_fini(&exec) before iterating over the collected HMM ranges and calling amdgpu_ttm_tt_get_user_pages().

If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to unlock_all and calls drm_exec_fini(&exec) a second time on the same exec object. drm_exec_fini() is not idempotent: it frees exec->objects and may also drop exec->contended and finalize the ww acquire context.

Route that error path directly to the range cleanup once exec has already been finalized.

Issue found using a prototype static analysis tool and confirmed by code review.

(cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)

CVSS Base Scores

version 3.1