CVE-2024-36932

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

thermal/debugfs: Prevent use-after-free from occurring after cdev removal

Since thermal_debug_cdev_remove() does not run under cdev->lock, it can run in parallel with thermal_debug_cdev_state_update() and it may free the struct thermal_debugfs object used by the latter after it has been checked against NULL.

If that happens, thermal_debug_cdev_state_update() will access memory that has been freed already causing the kernel to crash.

Address this by using cdev->lock in thermal_debug_cdev_remove() around the cdev->debugfs value check (in case the same cdev is removed at the same time in two different threads) and its reset to NULL.

Cc :6.8+ <stable@vger.kernel.org> # 6.8+

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 755113d7678681a137c330f7997ceb680adb644e, < c1279dee33369e2525f532364bb87207d23b9481; >= 755113d7678681a137c330f7997ceb680adb644e, < d351eb0ab04c3e8109895fc33250cebbce9c11da
LinuxLinux6.8
linuxlinux_kernel>= 755113d76786, < c1279dee3336; >= 755113d76786, < d351eb0ab04c; 6.8

References

Timeline

Published
May 30, 2024
Last modified
Jun 17, 2026
NVD status
Modified

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