Buffer Overflow Vulnerability in Linux Kernel Affecting ACPI Timer Functionality

CVE-2023-53395

What is CVE-2023-53395?

A vulnerability has been identified in the Linux kernel related to the Advanced Configuration and Power Interface (ACPI) Timer functionality. This issue arises when the ASL Timer instruction is processed without passing any required arguments. The missing flag, AML_NO_OPERAND_RESOLVE, has now been added to the instruction opcode to prevent misinterpretation by the ACPI interpreter, thus eliminating the prior error conditions. This enhancement improves system stability and security when dealing with ASL Timer operations, reducing the risk of crashing from erroneous index references and ensuring compliance with ACPI specifications.

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