PT-2025-7954 · Linux+3 · Linux Kernel+3

Published 2022-01-24 · Updated 2025-09-23 · CVE-2021-47643

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 leak in the error path has been fixed in the Linux kernel, specifically in the ir toy media module. The issue involved freeing resources before exiting due to an error.

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

BDU:2026-03892

CVE-2021-47643

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 · 1341

• 🔥 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/DEBIAN-CVE-2021-47643 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47643 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://git.kernel.org/stable/c/52cdb013036391d9d87aba5b4fc49cdfc6ea4b23 · Patch
• https://git.kernel.org/stable/c/93ef3fdf3b6633c58f049e5a6be755777dde4340 · Patch
• https://git.kernel.org/stable/c/382e0f6958ef34eb093127b6d74c12f3b8fd0904 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47643 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://git.kernel.org/stable/c/99e3f83539cac6884a4df02cb204a57a184ea12b · Patch