CVE-2026-89438

A flaw was found in the Linux kernel, specifically within the Intel Speed Select Technology ISST component. This vulnerability arises from insufficient validation of input values, such as logical CPU ID and CLOS ID, used in the core power feature. A local attacker could exploit this by providing...

CVE-2026-89438

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

CVE-2026-89438

This CVE affects the Linux kernel 's platform/x86: ISST (Intelligent Speed and Frequency Tuning Technology) driver. The root cause is a missing validation of the maximum CLOS ID and logical CPU ID for the core power feature. These values are used to calculate MMIO offsets , so an out-of-range val...

CVE-2026-89438 platform/x86: ISST: Validate logical CPU id and clos id

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

EUVD-2026-76344

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

PT-2026-90154

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...