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().
References
Configurations
Configuration 1 (hide)
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History
12 May 2026, 21:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/0089ce1c056aee547115bdc25c223f8f88c08498 - Patch | |
| References | () https://git.kernel.org/stable/c/68f38f648e4b5bed2aeadd2f711e25302e6490f8 - Patch | |
| References | () https://git.kernel.org/stable/c/6cfed39c2ce64ac024bbde458a9727105e0b8c66 - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-12 21:17
NVD link : CVE-2026-43122
Mitre link : CVE-2026-43122
CVE.ORG link : CVE-2026-43122
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference