CVE-2026-43122

✕ Withdrawn — historical dataMEDIUMNVD 5.5
5.5CVSS

In the Linux kernel, the following vulnerability has been resolved:

ACPI: processor: Update cpuidle driver check in __acpi_processor_start()

Commit 7a8c994cbb2d ("ACPI: processor: idle: Optimize ACPI idle driver registration") moved the ACPI idle driver registration to acpi_processor_driver_init() and acpi_processor_power_init() does not register an idle driver any more.

Accordingly, the cpuidle driver check in __acpi_processor_start() needs to be updated to avoid calling acpi_processor_power_init() without a cpuidle driver, in which case the registration of the cpuidle device in that function would lead to a NULL pointer dereference in __cpuidle_register_device().

CVSS v3
5.5
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EPSS PROB
—
EPSS %ILE
—
KEV
—Not applicable: this CVE ID was withdrawn

Published

May 6, 2026

Last Modified

May 12, 2026

References (3)

Frequently asked(4)

What is CVE-2026-43122?
CVE-2026-43122 is a rejected CVE ID: its record was withdrawn on June 17, 2026 and no longer describes a vulnerability. Reason given: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
When was the CVE record for CVE-2026-43122 published?
The CVE record for CVE-2026-43122 was published on May 6, 2026. EchelonGraph's copy of the record carries a last-modified date of May 12, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-43122?
CVE-2026-43122 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43122?
There is nothing to remediate under CVE-2026-43122: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability.