CyberRota Analysis
AI-GeneratedA vulnerability in the Linux kernel affects the ACPI processor's handling of IOAPIC entries, specifically during the parsing of MADT and _MAT records. This flaw could lead to improper validation of record boundaries, potentially allowing for memory corruption or system instability. Organizations using Linux-based systems, particularly those leveraging ACPI for power management and hardware configuration, should prioritize addressing this issue to mitigate potential risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: validate MADT IOAPIC entry bounds The IOAPIC hotplug lookup parses both MADT and _MAT records directly. The MADT walk previously used a subtable's declared length to advance the cursor after only locating a generic header. The _MAT path likewise passed a generic header to the IOAPIC helper. Validate that a current record has a complete generic header, that its declared length is contained in the available record range, and that a typed IOAPIC record contains the full fixed IOAPIC body before reading its fields. Use the same relation for both MADT and _MAT provider paths.