PT-2024-11173 · Linux+1 · Linux Kernel+1

Pavel Skripkin · Published 2021-06-03 · Updated 2025-01-07 · CVE-2021-47121

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 resolved in the Linux kernel. The problem occurs when the caif enroll dev() function fails, causing the allocated link support to not be assigned to the corresponding structure. To fix this, the allocated pointer is freed in case of an error.

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:2025-07280

CVE-2021-47121

OESA-2024-1526

OESA-2024-1535

Affected Products

Astra Linux

Linux Kernel

References · 55

• https://git.kernel.org/stable/c/7f5d86669fa4d485523ddb1d212e0a2d90bd62bb · Patch
• https://git.kernel.org/stable/c/cc302e30a504e6b60a9ac8df7988646f46cd0294 · Patch
• https://git.kernel.org/stable/c/dde8686985ec24d6b00487080a906609bd613ea1 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-47090 · Security Note
• https://bdu.fstec.ru/vul/2025-07280 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-26772 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-26773 · Security Note
• https://ubuntu.com/security/CVE-2021-47121 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47084 · Security Note
• https://git.kernel.org/stable/c/e8b37f5009ea7095529790f022859711e6939c76 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-27437 · Security Note
• https://git.kernel.org/stable/c/81afc61cb6e2b553f2c5f992fa79e0ae73857141 · Patch
• https://osv.dev/vulnerability/CVE-2021-47121 · Vendor Advisory
• https://git.kernel.org/stable/c/4d94f530cd24c85aede6e72b8923f371b45d6886 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-26898 · Security Note