PT-2025-37689 · Linux+5 · Linux+5

Published 2023-01-01 · Updated 2026-05-26 · CVE-2023-53248

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions linux (affected versions not specified)

Description The Linux kernel contains a flaw within the drm/amdgpu subsystem. Specifically, the issue involves installing a stub fence into potentially unused fence pointers when using the CPU to update page tables. This resolves a potential NULL dereference when calling dma fence wait() on these pointers, which occurs with unused vm update fences.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2025_16880

AZL-71239

BDU:2026-05881

CVE-2023-53248

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:03600-1

SUSE-SU-2025:03614-1

SUSE-SU-2025:03634-1

SUSE-SU-2025:20851-1

SUSE-SU-2025:20861-1

SUSE-SU-2025:20870-1

SUSE-SU-2025:20898-1

SUSE-SU-2025:3751-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4141-1

Affected Products

Astra Linux

Debian

Linux

Red Hat

Red Os

Suse

References · 1621

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53248.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:4132-1 · Vendor Advisory
• https://git.kernel.org/stable/c/aa9e9ba5748c524eb0925a2ef6984b78793646d6 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3751-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20851-1 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-71239 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05881 · Security Note
• https://git.kernel.org/stable/c/187916e6ed9d0c3b3abc27429f7a5f8c936bd1f0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03634-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53248 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53248 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20898-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53248 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53248 · Vendor Advisory