psychowood

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Update: I've disabled comments as of 2025-01-26 to avoid everyone having notifications for something a year on if someone wants to suggest a correction. Folks are free to email to suggest corrections still, of course.

Background

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Thank you for your understanding.

Some random notes on trying (and failing) to get Proxmox as host with 5700G APU GPU PCI Passthrough to Ubuntu guest VM working:

References:

Looks like this one claims to have this working (but I have not tested the method) :
- https://forums.unraid.net/topic/112649-amd-apu-ryzen-5700g-igpu-passthrough-on-692/page/6/#comment-1134140
Others trying to get this working:
https://forum.level1techs.com/t/got-my-ryzen-4750g-apu-igpu-to-pass-through-to-qemu-kvm-vm-but-display-output-is-pixelated-garbage-after-amd-apu-radeon-driver-install-from-amd-or-windows-update/169903

This is just a dump of some interesting undocumented features of webOS (3.8 specifically, on early 2018 4k LG TV) and other development-related tips.

Homebrew app ideas

OpenVPN frontend (OpenVPN itself is easily buildable and runs on webOS TVs: https://discord.com/channels/407937994037919756/835489130967859251/906943542457401395)
App autostart manager - dynamically update arbitrary app config and register it as input (see Registering an app as an input)
webos-vncserver frontend with autostart option
Package hyperiond into Piccap directly
Quick Screenshot (expose HTTP port that just returns PNG of current screen contents)
Custom IR remote codes editor/updater/blaster

Backup android app, data included, no root needed, with adb

Note: This gist may be outdated, thanks to all contributors in comments.

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

Use CC-tool for CC253X on my mac

Links

Last Updated: 8/30/18

Details

I wanted to run an OpenVPN server on the USG. Since it has a Radius server built in, I figured this would be a much better way to handle OpenVPN authentication. Make sure you have the Radius server enabled on your USG under Settings > Services > Radius > Server in the controller. Add OpenVpn users under Settings > Services > Radius > Server.

Thanks to the following resources in helping to configure this:

	#!/bin/bash

	# funsplash.sh

	funsplash() {
	clear
	printf -- "\n ========================================\n"
	printf -- "\n This script presents you with 2 options:\n"
	printf -- "\n 1. Choose the width of your pic.\n"
	printf -- "\n 2. Choose the height of your pic.\n"

	#!/bin/bash

	# ssh-cipher-benchmark.sh - Assesses speed of SSH encryption between specific hosts.
	# Usage:
	# ssh-cipher-benchmark.sh <remotehost> [ciphers]
	# Default ciphers: all we can find...
	#
	# Note: In some cases, the first cipher tested runs faster than the others, regardless of order.
	# Cause of this is not known, but changing the order of testing shows it to be true. Run the
	# first one twice if you suspect this. Perhaps it is due to buffering?

	#!/usr/bin/env perl
	use strict;
	my ($id, $label);
	my @all_lines;
	my %mapping;
	while(<>) {
	push @all_lines, $_;
	if (/^\s*</) {
	$id = undef;
	$label = undef;