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A comment on Bypass kernel lockdown/UEFI secure boot on Ubuntu 18.04 with ACPI SSDT injection.

Re:Bypass kernel lockdown/UEFI secure boot on Ubuntu 18.04 w... by rgrs on Monday June 15, 2020 @05:17AM (#23525405)
What is SSDT? What's exactly going on in this exploit?
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Re:Bypass kernel lockdown/UEFI secure boot on Ubuntu 18.04 w... by rswail on Monday June 15, 2020 @05:20AM (#23525427)
Refer to https://uefi.org/specifications

> ACPI defines many tables that provide the interface between an ACPI-compliant operating system, and system firmware. This includes Differentiated System Description Table (DSDT), Secondary System Description Table (SSDT), and Static Resource Affinity Table (SRAT), for example.

https://en.wikipedia.org/wiki/Advanced_Configuration_and_Pow...

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Re:Bypass kernel lockdown/UEFI secure boot on Ubuntu 18.04 w... by loeg on Monday June 15, 2020 @02:27PM (#23531103)
As far as table contents, it's essentially an auxiliary DSDT (ACPI table defining variables, functions, interrupts, ...). An ACPI system has one DSDT and zero or more SSDTs.
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