PT-2025-7965 · Linux+4 · Linux Kernel+4

Tom Rix · Published 2021-01-01 · Updated 2025-05-21 · CVE-2021-47654

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 in the samples/landlock component. The problem is related to the path list variable, which is allocated in the parse path() function but never freed, as reported by Clang static analysis. This issue can potentially lead to memory leaks.

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-2021-47654

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

Debian

Linux Kernel

Red Os

Suse

References · 1333

• 🔥 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://git.kernel.org/stable/c/20fbf100f84b9aeb9c91421abe1927bc152bc32b · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47654 · Vendor Advisory
• https://git.kernel.org/stable/c/66b513b7c64a7290c1fbb88e657f7cece992e131 · Patch
• https://git.kernel.org/stable/c/017196730299ccd6eed24bbfabed8af4ffd81530 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47654 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47654 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory