CVE-2024-36932 (GCVE-0-2024-36932)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2025-05-04 09:12
VLAI?
Title
thermal/debugfs: Prevent use-after-free from occurring after cdev removal
Summary
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+
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 755113d7678681a137c330f7997ceb680adb644e , < c1279dee33369e2525f532364bb87207d23b9481 (git)
Affected: 755113d7678681a137c330f7997ceb680adb644e , < d351eb0ab04c3e8109895fc33250cebbce9c11da (git)
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    Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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