PT-2023-9832 · Linux+4 · Linux Kernel+4

Var10Ck + 1 · Published 2023-08-09 · Updated 2026-05-26 · CVE-2023-52921

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description The issue is related to a possible use-after-free (UAF) vulnerability in the amdgpu cs pass1() function. This vulnerability may allow an attacker to impact the confidentiality, integrity, and availability of protected information. The vulnerability is caused by the gang size check being outside of the chunk parsing loop, which requires resetting i before freeing the chunk data.

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

Exploit

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

AZL-53778

BDU:2025-00164

CVE-2023-52921

OPENSUSE-SU-2024_4314-1

OPENSUSE-SU-2024_4315-1

OPENSUSE-SU-2024_4316-1

OPENSUSE-SU-2024_4376-1

SUSE-SU-2024:4314-1

SUSE-SU-2024:4315-1

SUSE-SU-2024:4316-1

SUSE-SU-2024:4318-1

SUSE-SU-2024:4364-1

SUSE-SU-2024:4376-1

SUSE-SU-2024:4387-1

SUSE-SU-2025:20163-1

SUSE-SU-2025:20164-1

SUSE-SU-2025:20246-1

SUSE-SU-2025:20247-1

Affected Products

Astra Linux

Debian

Linux Kernel

Red Os

Suse

References · 1389

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52921.json · Exploit
• https://bdu.fstec.ru/vul/2025-00164 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:4316-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-52921 · Vendor Advisory
• https://git.kernel.org/stable/c/e08e9dd09809b16f8f8cee8c466841b33d24ed96 · Patch
• https://cve.org/CVERecord?id=CVE-2023-52921 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:4364-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52921 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:4315-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2023-52921 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20163-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20164-1 · Vendor Advisory
• https://git.kernel.org/stable/c/9a2393af1f35d1975204fc00035c64a1c792b278 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-52921 · Security Note
• https://git.kernel.org/stable/c/90e065677e0362a777b9db97ea21d43a39211399 · Patch