thesamesam

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.

Background

On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that

jonocarroll

## Modify a vector in the workspace; x is a user-accessible symbol
x <- 42
.Internal(inspect(x))
# @5631a3a19e20 14 REALSXP g0c1 [REF(5)] (len=1, tl=0) 42
x[1] <- 43 # modification causes a copy (address changes)
.Internal(inspect(x))
# @5631a36c1cb8 14 REALSXP g0c1 [REF(4)] (len=1, tl=0) 43

## Modify a vector inside a function; user cannot access y
f <- function() {

nanxstats

#' Flatten copy
#'
#' @param from Source directory path.
#' @param to Destination directory path.
#'
#' @return Destination directory path.
#'
#' @details
#' Copy all `.Rmd`, `.qmd`, and `.md` files from source to destination,
#' rename the `.qmd` and `.md` files with an additional `.Rmd` extension,

jthomasmock

#### ---------------------------------------------
## Edit via: RStudio > Tools > Edit Code Snippets
# Released under a MIT license

snippet fragment
	[${1:text}]{.${2:type}}
	
snippet aside
	[${1:text}]{.aside}
	

linderd

Linux (Fedora 35) on a Thinkpad P14s [T14] Gen2 AMD

These are my installation-tricks and notes for running Linux on a 2021 Thinkpad P14s Gen2 with AMD Ryzen 7 5850U. It should also be suitable for the Thinkpad T14 Gen2 AMD as they are technically the same modell.
Meanwhile there is also a good test on youtube and an entry in the arch-wiki, which also comments some points mentioned here.

Detailed specs

Shipped:

statnmap

VSCode for R users

R and Rmd features are handled by:

• vscode-r: https://marketplace.visualstudio.com/items?itemName=Ikuyadeu.r
  • Ubuntu install: https://github.com/Ikuyadeu/vscode-R/wiki/Installation:-Linux
• vscode-r-lsp: https://marketplace.visualstudio.com/items?itemName=REditorSupport.r-lsp
  • Install first: `install.packages("languageserver")
  • Integrated in vscode-r since vscode-r 2.1.0
• radian: https://github.com/randy3k/radian

timlinux

Thinkpad P14s AMD Edition Review (Running Fedora)

These are my installation etc. notes for running Linux on my new Thinkpad P14s laptop with 32GB RAM, 1TB SDD and 8 Core, 16 Thread AMD CPU.

Detailed specs

Here is what they quoted as the specs after I confirmed my order:

pachevalier

# This script is quick and dirty code. It is very preliminary and may be improved one day ;)
library("jsonlite")
library("tidyverse")
library("httr")
library("WikidataR")

paste0(
 "https://www.wikidata.org/w/api.php?action=wbgetentities&", 
 "ids=Q6581097|Q6581072", 
 "&languages=fr&props=labels&format=json"

gadenbuie

#' Print xaringan slides to PDF
#'
#' Prints xaringan slides to a PDF file, even complicated slides
#' with panelsets or other html widgets or advanced features.
#' Requires a local installation of Chrome.
#'
#' @param input Path to Rmd or html file of xaringan slides.
#' @param output_file The name of the output file. If using NULL then
#'   the output filename will be based on filename for the input file.
#'   If a filename is provided, a path to the output file can also be provided.

gadenbuie

write.csv(iris, "iris.csv")

read_csv_filtered <- function(file, ..., select_vars = NULL, chunk_size = 10) {
  stopifnot(requireNamespace("dplyr", quietly = TRUE),
            requireNamespace("readr", quietly = TRUE))
  
  filter_by_id <- function(..., select_vars) {
    function(.data, pos) {
      if (!is.null(select_vars)) .data <- dplyr::select(.data, !!!select_vars)