Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-43122 on 17 June 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
WITHDRAWN
CVE-2026-43122
ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
Overview
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Details
INFO
Published Date :
May 6, 2026, 12:16 p.m.
Last Modified :
June 17, 2026, 8:17 p.m.
Remotely Exploit :
—
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-43122 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-43122 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 2026
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 2026
Action Type Old Value New Value Changed Description 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(). Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Removed CVSS V3.1 NIST: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Removed CWE NIST: CWE-476 Removed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.18 up to (excluding) 6.18.14 Removed Reference kernel.org: https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498 Removed Reference kernel.org: https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8 Removed Reference kernel.org: https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66 Removed Reference Type kernel.org: https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498 Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8 Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66 Types: Patch Removed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '68f38f648e4b5bed2aeadd2f711e25302e6490f8', 'versionType': 'git'}, {'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '6cfed39c2ce64ac024bbde458a9727105e0b8c66', 'versionType': 'git'}, {'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '0089ce1c056aee547115bdc25c223f8f88c08498', 'versionType': 'git'}], 'programFiles': ['drivers/acpi/processor_driver.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.18'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.18', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.14', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '6.19.4', 'versionType': 'semver', 'lessThanOrEqual': '6.19.*'}, {'status': 'unaffected', 'version': '7.0', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/acpi/processor_driver.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '68f38f648e4b5bed2aeadd2f711e25302e6490f8', 'versionType': 'git'}, {'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '6cfed39c2ce64ac024bbde458a9727105e0b8c66', 'versionType': 'git'}, {'status': 'affected', 'version': '7a8c994cbb2db3c5335cee35fd486557f5aaf7e1', 'lessThan': '0089ce1c056aee547115bdc25c223f8f88c08498', 'versionType': 'git'}], 'programFiles': ['drivers/acpi/processor_driver.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.18'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.18', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.14', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '6.19.4', 'versionType': 'semver', 'lessThanOrEqual': '6.19.*'}, {'status': 'unaffected', 'version': '7.0', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/acpi/processor_driver.c'], 'defaultStatus': 'affected'}] -
Initial Analysis by [email protected]
May. 12, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.18 up to (excluding) 6.18.14 Added Reference Type kernel.org: https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 06, 2026
Action Type Old Value New Value Added Description 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(). Added Reference https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498 Added Reference https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8 Added Reference https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.