| # To prevent unsuppoorted architecture error messages from apt on Ubuntu 24.04 (Noble Numbat) | |
| # with the new apt sources format | |
| # Example error messages on `apt update` after a fresh install: | |
| # N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://packages.microsoft.com/repos/edge stable InRelease' doesn't support architecture 'i386' | |
| # N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386' | |
| ################################################# | |
| ### SINGLE-ARCH (i.e. fix arch-related error) ### | |
| ################################################# |
| 0810 b' from ' | |
| 0678 b' ssh2' | |
| 00d8 b'%.48s:%.48s():%d (pid=%ld)\x00' | |
| 0708 b'%s' | |
| 0108 b'/usr/sbin/sshd\x00' | |
| 0870 b'Accepted password for ' | |
| 01a0 b'Accepted publickey for ' | |
| 0c40 b'BN_bin2bn\x00' | |
| 06d0 b'BN_bn2bin\x00' | |
| 0958 b'BN_dup\x00' |
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.
On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that
| #if 0 | |
| Apple A11 (H10) introduces 2 propietary instructions called mul53lo.2d and mul53hi.2d. All of which belongs to Mul53 extensions. | |
| Defintions: | |
| - mul53lo.2d Vd, Vm: Multiplies 2 53-bit doublewords in the Vn vector with 2 53-bit doublewords in Vm vector and store 53 lowest bits in the Vn vector. | |
| - mul53hi.2d Vd, Vm: Multiplies 2 53-bit doublewords in the Vn vector with 2 53-bit doublewords in Vm vector and store the result shifted 53 bits in the Vn vector. | |
| Encodings: | |
| - mul53lo.2d Vd, Vm: 0x00200000 | (m << 5) | (d << 0) | |
| - mul53hi.2d Vd, Vm: 0x00200400 | (m << 5) | (d << 0) |
| /* | |
| * m1cat: a proof of concept for the M1RACLES vulnerability in the Apple M1. | |
| * | |
| * This program implements a covert channel that can be used to transmit data | |
| * between two processes when run on the Apple Silicon "M1" CPUs. | |
| * | |
| * The channel is slightly lossy due to (presumably) the scheduler sometimes | |
| * scheduling us on the wrong CPU cluster, so this PoC sends every byte twice | |
| * together with some metadata/framing bits, which is usually good enough. | |
| * A better approach would be to use proper FEC or something like that. |
| /* | |
| * m1racle-poc: a basic proof of concept for the M1RACLES vulnerability in the Apple M1. | |
| * | |
| * This program allows you to read and write the state of the s3_5_c15_c10_1 CPU register. | |
| * | |
| * Please visit m1racles.com for more information. | |
| * | |
| * Licensed under the MIT license. | |
| */ |
| # IDA (disassembler) and Hex-Rays (decompiler) plugin for Apple AMX | |
| # | |
| # WIP research. (This was edited to add more info after someone posted it to | |
| # Hacker News. Click "Revisions" to see full changes.) | |
| # | |
| # Copyright (c) 2020 dougallj | |
| # Based on Python port of VMX intrinsics plugin: | |
| # Copyright (c) 2019 w4kfu - Synacktiv |
| #include <stdio.h> | |
| #include <math.h> | |
| #include <inttypes.h> | |
| #if defined(__GNUC__) | |
| #define NOINLINE __attribute__((noinline)) | |
| #else | |
| #define NOINLINE | |
| #endif |
| #!/usr/bin/env zsh | |
| set -e; | |
| set +m; # Job control would've been nice, but manual round robin it is, sigh. | |
| if [ -z "${ZSH_VERSION+x}" ]; then | |
| echo 'Try again with zsh.'; | |
| exit 1; | |
| fi; |
| #!/bin/bash -x | |
| # make_arm64_rpi_kernel_debs.sh | |
| # Builds arm64 debian packages from the CURRENT rpi firmware repository kernel which is installed by: | |
| # sudo rpi-update | |
| # This runs on an arm64 host with arm64 compilation tools... | |
| # or with some sort of cross-compilation setup. | |
| # Debs are put in $workdir/build | |
| # | |
| # This will NOT work in Raspbian unless you have an arm64 compilation | |
| # environment setup. Appears to work on |
