CVE-2026-43122 Details
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
A vulnerability exists in the Linux kernel's ACPI processor management. The issue arises because the ACPI idle driver registration was moved to a different initialization function, leaving a gap that could lead to a NULL pointer dereference. Specifically, the cpuidle driver check in the '__acpi_processor_start()' function needs to be revised. Without this update, the function may call 'acpi_processor_power_init()' without a valid cpuidle driver, causing a crash by dereferencing a NULL pointer when registering the cpuidle device.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
No affected product data is available for this CVE.
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Rejected | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 12, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |