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Linux Journal

CrackArmor Exposed: Critical Flaws in AppArmor Put Millions of Linux Systems at Risk

by George Whittaker A newly disclosed set of vulnerabilities has sent shockwaves through the Linux security community. Dubbed “CrackArmor,” these flaws affect AppArmor, one of the most widely used security modules in Linux, potentially exposing millions of systems to serious compromise. Discovered by the Qualys Threat Research Unit, the vulnerabilities highlight a concerning reality: even core security mechanisms can harbor weaknesses that go unnoticed for years. What Is CrackArmor? “CrackArmor” refers to a group of nine critical vulnerabilities found in the Linux kernel’s AppArmor module. AppArmor is a mandatory access control (MAC) system designed to restrict what applications can do, helping contain attacks and enforce system policies. These flaws stem from a class of issues known as “confused deputy” vulnerabilities, where a lower-privileged user can trick trusted processes into performing actions on their behalf. Why These Vulnerabilities Are Serious The impact of CrackArmor is si

Phoronix

Current RISC-V CPUs Being Too Slow Causes Headaches For Fedora: ~5x Slower Builds

The current crop of RISC-V SoCs are still much slower than alternative CPU architectures and lead to much longer build times for Fedora packages as a result. There's hope with next-gen RISC-V processors being faster but for now even compiling Binutils as an example is around five times slower than x86_64 -- and that's with disabling compiler link-time optimizations (LTO) for RISC-V to avoid an even longer build process...

LWN.net

[$] Debian decides not to decide on AI-generated contributions

Debian is the latest in an ever-growing list of projects to wrestle (again) with the question of LLM-generated contributions; the latest debate stared in mid-February, after Lucas Nussbaum opened a discussion with a draft general resolution (GR) on whether Debian should accept AI-assisted contributions. It seems to have, mostly, subsided without a GR being put forward or any decisions being made, but the conversation was illuminating nonetheless.

LWN.net

Security updates for Tuesday

Security updates have been issued by Debian (imagemagick), Fedora (chromium, matrix-synapse, mingw-zlib, perl-Net-CIDR, polkit, and rust-pythonize), Mageia (coturn, firefox, and thunderbird), Oracle (delve, git-lfs, gnutls, go-rpm-macros, image-builder, kernel, libsoup, nfs-utils, nginx:1.24, osbuild-composer, postgresql, thunderbird, udisks2, and valkey), Red Hat (grafana, image-builder, and opentelemetry-collector), SUSE (c3p0 and mchange-commons, corepack24, go1, ImageMagick, python-Flask, tomcat, tomcat10, tomcat11, virtiofsd, and weblate), and Ubuntu (apache2 and yara).