PT-2024-11174 · Linux+2 · Linux Kernel+2

Published 2021-06-03 · Updated 2025-04-09 · CVE-2021-47122

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 caif enroll dev() fails, and the allocated link support is not assigned to the corresponding structure. To fix this, the allocated pointer is freed in case of an error. The issue is related to the caif device notify function.

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:2025-07281

CVE-2021-47122

OESA-2024-1392

OESA-2024-1393

USN-7415-1

USN-7429-1

USN-7429-2

Affected Products

Astra Linux

Linux Kernel

Ubuntu

References · 91

• https://git.kernel.org/stable/c/af2806345a37313f01b1c9f15e046745b8ee2daa · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-52502 · Security Note
• https://git.kernel.org/stable/c/4bca2034b41c15b62d47a19158bb76235fd4455d · Patch
• https://ubuntu.com/security/CVE-2024-53227 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47122 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-52600 · Security Note
• https://bdu.fstec.ru/vul/2025-07281 · Security Note
• https://git.kernel.org/stable/c/b53558a950a89824938e9811eddfc8efcd94e1bb · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-52476 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-46989 · Security Note
• https://ubuntu.com/security/CVE-2021-47320 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47119 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-24855 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-52469 · Security Note
• https://ubuntu.com/security/CVE-2024-56595 · Vendor Advisory