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CVE-2023-53248

kernel: drm/amdgpu: install stub fence into potential unused fence pointers

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Severity

Moderate

Red Hat Product Security

6

CVSS 3.1

Review impact separately from score.

Published · September 15, 2025

Updated · June 30, 2026

Description

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

drm/amdgpu: install stub fence into potential unused fence pointers

When using cpu to update page tables, vm update fences are unused. Install stub fence into these fence pointers instead of NULL to avoid NULL dereference when calling dma_fence_wait() on them.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H

CWE-476 · NULL Pointer Dereference