[$] 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.
Why am I seeing this Ranked on source trust — LWN
It ranks mainly on source trust: LWN is the most reliable outlet we track on this subject, and is the only one on the story so far.
Single-sourced. No second organisation has confirmed it yet.
Link-outLink-out, because only one organisation carries it and no first-party source is on it and the subject could not be identified from the text. Link-out means we point at the publisher and say nothing of our own.
| Factor | Weight | Score | Contribution | Where it came from |
|---|---|---|---|---|
| Corroboration | 0.35 | 0.39 | +0.135 25% | 1 independent org on the story. Tier-3 aggregators never corroborate — they can show something is circulating, never that it is true. |
| Source trustleads | 0.25 | 0.85 | +0.212 39% | LWN is the highest-trust source on this story. Trust is taken from the best source, not averaged. |
| Pickup rate | 0.20 | 0.00 | +0.000 0% | One counted organisation, so there is no spread to measure — nothing has picked this up to set a rate. |
| Freshness | 0.20 | 0.98 | +0.196 36% | Halves every 10 hours from the newest item on the story. This is the only factor that rewards a story for nothing more than being recent. |
Corroboration counts distinct organisations, once each, and only from tiers 1 and 2. Freshness halves every 10 hours, so this ranking is a snapshot and will differ at the next build.
ScotXW · CC BY-SA 4.0 · Wikimedia Commons · illustrativeWhat happened
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 feature that attempts to prevent modifications to the running kernel, disables hibernation. Matthew Garrett, who has been working on lockdown for many years, has shared a patch set that aims to fix this problem.
How this story arrived
Ordered by when each source was first observed, which is what the velocity figure is computed from. Publishers backdate; observed order does not.
- 01 Lwn first seen [$] Locking down hibernation for the winter
Overclock clusters coverage from independent sources and grades it automatically. The figures above are computed, not editorial. This page summarises and links to reporting by the outlets named — follow the links for the original work.