CVE-2026-92504: thermal: intel: int3400: clean up ODVP on probe failures
In the Linux kernel, the following vulnerability has been resolved:
thermal: intel: int3400: clean up ODVP on probe failures
evaluateodvp() creates per-ODVP sysfs files before the thermal zone and later probe resources are registered. The current unwind path only calls cleanupodvp() from the late sysfs failure path, so failures after evaluateodvp() but before that label, including thermaltriplesszonedeviceregister() failures, leave the ODVP files and storage behind.
Move the ODVP cleanup to the common ART/TRT unwind path so every failure after evaluateodvp() releases the ODVP state. Also clear the cached ODVP pointers in cleanupodvp(), because evaluateodvp() can already call it for partial setup failures while probe continues.
Affected Software
Remediation
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In the Linux kernel thermal Intel int3400 driver, clear cached ODVP pointers in cleanup_odvp() and invoke cleanup_odvp() from the common ART/TRT unwind path so every failure after evaluate_odvp(), including thermal_tripless_zone_device_register() failures, releases ODVP files and storage.
Event History
Frequently Asked Questions
Under what conditions can the leaked ODVP state occur?
It can occur when probing continues after evaluate_odvp() creates per-ODVP sysfs files, but a later initialization step fails before the existing late-sysfs cleanup path. The description specifically identifies failures in thermal_tripless_zone_device_register() as an example.
What is the practical impact of the failed cleanup?
The failed probe can leave per-ODVP sysfs files and their associated storage behind. Cached ODVP pointers may also remain uncleared, including after partial ODVP setup failures where probing continues.
How does the fix address the issue?
The fix moves ODVP cleanup into the common ART/TRT unwind path so failures after evaluate_odvp() release ODVP state consistently. It also clears cached ODVP pointers in cleanup_odvp().