PT-2021-8084 · Linux+3 · Linux Kernel+3

Published 2021-09-14 · Updated 2026-03-14 · CVE-2021-47193

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 The issue is related to a memory leak in the Linux kernel's pm80xx component. The driver failed to release all allocated memory, leading to a memory leak during driver removal. This could allow an attacker to cause a denial of service. The memory leak occurs when the module is removed, and it has been resolved by properly freeing the memory.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2024-06492

CVE-2021-47193

DLA-4327-1

OPENSUSE-SU-2024_1641-1

OPENSUSE-SU-2024_1644-1

OPENSUSE-SU-2024_1659-1

OPENSUSE-SU-2024_1663-1

SUSE-SU-2024:1641-1

SUSE-SU-2024:1644-1

SUSE-SU-2024:1647-1

SUSE-SU-2024:1659-1

SUSE-SU-2024:1663-1

SUSE-SU-2024:2360-1

SUSE-SU-2024:2381-1

SUSE-SU-2024:2561-1

Affected Products

Debian

Linux Kernel

Red Os

Suse

References · 938

• https://bdu.fstec.ru/vul/2024-06492 · Security Note
• https://ubuntu.com/security/CVE-2021-47193 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1644-1 · Vendor Advisory
• https://git.kernel.org/stable/c/51e6ed83bb4ade7c360551fa4ae55c4eacea354b · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2021-47193 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47193 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2360-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1641-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1659-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47193 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47193 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1663-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4327-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2561-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47193 · Vendor Advisory