CVE-2024-36932

CVE Details

Release Date:

2024-05-30

Description

In the Linux kernel, the following vulnerability has been resolved:\nthermal/debugfs: Prevent use-after-free from occurring after cdev removal\nSince thermal_debug_cdev_remove() does not run under cdev->lock, it can\nrun in parallel with thermal_debug_cdev_state_update() and it may free\nthe struct thermal_debugfs object used by the latter after it has been\nchecked against NULL.\nIf that happens, thermal_debug_cdev_state_update() will access memory\nthat has been freed already causing the kernel to crash.\nAddress this by using cdev->lock in thermal_debug_cdev_remove() around\nthe cdev->debugfs value check (in case the same cdev is removed at the\nsame time in two different threads) and its reset to NULL.\nCc :6.8+ # 6.8+

See more information about CVE-2024-36932 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.1	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	High	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	Low
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14