In the Linux kernel, the following vulnerability has been resolved: hwmon: (hp-wmi-sensors) Check if WMI event data exists The BIOS can choose to return no event data in response to a WMI event, so the ACPI object passed to the WMI notify handler can be NULL. Check for such a situation and ignore the event in such a case.
https://git.kernel.org/stable/c/a54da9df75cd1b4b5028f6c60f9a211532680585
https://git.kernel.org/stable/c/4b19c83ba108aa66226da5b79810e4d19e005f12
https://git.kernel.org/stable/c/217539e994e53206bbf3fb330261cc78c480d311