CVE-2026-64183

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

Description An issue exists where ACPI PRM calls, which are delegated to a workqueue running in a kernel thread to detect and mitigate faulting memory accesses by firmware, may occur before the efisubsys init() function executes. Because the workqueue is allocated within efisubsys init(), these early accesses can lead to NULL pointer dereferences. This occurs because acpi init() also executes as a subsys initcall(), and its dependencies prevent it from being deferred.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.