Siemens InsydeH2O Insufficient Input Validation (CVE-2023-22616)

An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM. Insyde BIOS is typical...