CVE-2026-43122
- Source
- https://cve.org/CVERecord?id=CVE-2026-43122
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43122.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-43122
- Downstream
- Published
- 2026-05-06T11:27:08.893Z
- Modified
- 2026-07-08T08:02:14.868711736Z
- Summary
- ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ACPI: processor: Update cpuidle driver check in __acpiprocessorstart()
Commit 7a8c994cbb2d ("ACPI: processor: idle: Optimize ACPI idle driver registration") moved the ACPI idle driver registration to acpiprocessordriverinit() and acpiprocessorpowerinit() does not register an idle driver any more.
Accordingly, the cpuidle driver check in __acpiprocessorstart() needs to be updated to avoid calling acpi_processorpowerinit() without a cpuidle driver, in which case the registration of the cpuidle device in that function would lead to a NULL pointer dereference in __cpuidleregisterdevice().
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43122.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498
- https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8
- https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43122.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43122
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git