CVE-2021-22600—Linux Kernel Privilege Escalation Vulnerability

PUBLISHEDvulnerability record
2022-04-11 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2021-22600
Project:
Linux
Product:
Kernel
Date Added:
2022-04-11
Due Date:
2022-05-02
Last Updated:
June 21, 2025

Vulnerability Name

Linux Kernel Privilege Escalation Vulnerability

Description

Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2021-22600

Related Weaknesses

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