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+
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:23.178Z

Updated: 2024-08-02T03:43:50.540Z

Reserved: 2024-05-30T15:25:07.071Z

Link: CVE-2024-36932

cve-icon Vulnrichment

Updated: 2024-06-07T14:06:44.119Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-30T16:15:16.383

Modified: 2024-06-10T19:20:40.977

Link: CVE-2024-36932

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36932 - Bugzilla