CVE-2026-43211

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the pci slot trylock() function where error handling is incorrectly implemented. Following a change that delegated the bridge device's pci dev trylock() to pci bus trylock(), the corresponding pci dev unlock() call was not removed from the failure path. This results in the system attempting to unlock a device that was not locked, leading to either a warning that a lock is being released without being held or the incorrect unlocking of a lock belonging to another thread.

Recommendations Remove the redundant pci dev unlock() call on the failure path within the pci slot trylock() function.