[$] Locking down hibernation for the winter
When a computer hibernates, the kernel writes the contents of memory to disk and then shuts the system down. Resuming from hibernation involves reading that data back into memory, and then having the kernel pick up where it left off. Unfortunately, the kernel does not have any way to know that the data it is reading back has not been tampered with, which is why lockdown , an optional kernel…
We haven't written up this one. LWN has the full story — the link below goes straight to it.
