PT-2025-8232 · Linux+3 · Linux Kernel+3

Published 2025-02-26 · Updated 2025-05-21 · CVE-2021-4453

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 kernel (affected versions not specified)

Description A memory leak issue has been identified in the Linux kernel, specifically related to the gpu metrics table in the drm/amd/pm module. The memory is allocated in the renoir init smc tables() function but not freed in the smu v12 0 fini smc tables() function.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2021-4453

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1241-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1332

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/cve_2022_0995_watch_queue.rb · Exploit
• 🔥 https://github.com/qazbnm456/awesome-cve-poc/blob/master/CVE-2017-5753.md · Exploit
• 🔥 https://github.com/Bonfee/CVE-2022-0995 · Exploit
• 🔥 https://github.com/TurtleARM/CVE-2023-0179-PoC · Exploit
• 🔥 https://github.com/H4K6/CVE-2023-0179-PoC · Exploit
• 🔥 https://github.com/EdwardOwusuAdjei/Spectre-PoC · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4453 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-4453 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/aa464957f7e660abd554f2546a588f6533720e21 · Patch
• https://cve.org/CVERecord?id=CVE-2021-4453 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-4453 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4453 · Vendor Advisory
• https://git.kernel.org/stable/c/257b3bb16634fd936129fe2f57a91594a75b8751 · Patch