SB2024123035 - Use-after-free in Linux kernel thermal testing driver



SB2024123035 - Use-after-free in Linux kernel thermal testing driver

Published: December 30, 2024 Updated: May 12, 2025

Security Bulletin ID SB2024123035
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2024-56676)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the tt_add_tz_work_fn(), tt_zone_unregister_tz(), tt_zone_add_trip_work_fn() and tt_zone_register_tz() functions in drivers/thermal/testing/zone.c. A local user can escalate privileges on the system.


Remediation

Install update from vendor's website.