BLOG ESPECIALIZADO NO MUNDO LINUX. Blog de Linux com vídeo aulas, notícias do mundo Linux e do Software Livre.
A critical Linux kernel performance patch targets a slab memory allocation regression in Linux 6.18 LTS and 6.19, slashing kmem_cache_destroy() latency by 45% with optimized RCU sheaf flushing. Learn how the kvfree_rcu_barrier_on_cache() fix resolves major regressions for module loading and graphics performance.
d_genocide() function from the Linux 6.19 kernel. This deep dive analyzes the Linux kernel's dcache subsystem, terminology evolution, and the pull request from maintainer Al Viro that refactored the code for kill_litter_super(). A must-read for systems developers and open-source contributors.
SUSE has released a critical security update (SUSE-SU-2025:21128-1) patching two OpenSSH vulnerabilities (CVE-2025-61984 & CVE-2025-61985) that allow local code execution via malformed usernames or URIs. This guide details the CVSS 5.3-rated risks, provides step-by-step patch instructions for SUSE Linux Micro 6.2, and offers expert SSH hardening recommendations to protect your enterprise infrastructure.
SUSE has released a critical security update addressing CVE-2025-27516, a sandbox breakout vulnerability in the python-Jinja2 templating library affecting multiple enterprise products. Learn about the exploit mechanism, impacted systems, and immediate patching instructions to secure your SUSE Linux Enterprise Server, SAP Applications, and High Performance Computing environments against potential template injection attacks.
SUSE releases patch for moderate GnuTLS buffer overflow (CVE-2025-9820). Learn affected SUSE Linux 12 SP5 systems, CVSS 4.0 impact analysis, and step-by-step zypper/YaST patching instructions to secure your cryptographic libraries.
Critical analysis of Debian DSA-6076-1 addressing libpng1.6 vulnerabilities enabling info leaks, DoS, and code execution via malicious PNGs. Includes patching guidance, enterprise risk assessment, and mitigation strategies for Linux security teams.
Critical SUSE security update SU-2025:4336-1 patches high-severity Go 1.25 vulnerabilities CVE-2025-61729 (resource consumption) & CVE-2025-61727 (wildcard bypass). Learn about the 8.7 CVSS score risks, affected SUSE Linux & openSUSE systems, step-by-step patch instructions with zypper, and essential steps to recompile Go applications for complete mitigation.
Fedora Cloud 44 is eliminating the separate /boot partition, adopting a Btrfs subvolume instead. Explore this strategic shift for cloud image efficiency, its technical rationale, and the implications for DevOps and Linux admins on deployment size and system management. Learn more about this FESCo-approved change.
Comprehensive analysis of F2FS performance optimizations in Linux 6.19 kernel for enterprise flash storage. Explore zoned device enhancements, garbage collection algorithms, and implementation strategies for database systems, container platforms, and high-performance computing workloads. Technical deep dive with actionable deployment guidance.
Discover critical CVE-2025-60359, CVE-2025-60360, CVE-2025-60361 vulnerabilities in Radare2 for Ubuntu. Our in-depth security analysis covers patched versions, Ubuntu Pro requirements for LTS, and essential remediation steps for system administrators and cybersecurity professionals.
Critical analysis of SUSE-2025-4330-1: A severe security vulnerability affecting KubeVirt's core components (virt-api, virt-controller, virt-handler, etc.) with a CVSS score of 8.8. Learn about the container escape risk, mitigation strategies for your virtualized Kubernetes workloads, and best practices for runtime security in cloud-native environments.
Detailed analysis of the Python-APT critical DoS vulnerability CVE-2025-6966 affecting Ubuntu 14.04 LTS through 25.10. Learn about the security flaw in deb822 parsing, get patched package versions, and understand the remediation steps to protect your Linux systems from denial-of-service attacks. Official Ubuntu Security Notice USN-7916-1.
Critical SVE-2025-4323 vulnerability in GnuTLS exposes Linux systems to a dangerous heap-based buffer overflow during TLS session resumption. This in-depth advisory details the exploit, patches for SUSE Linux, and proactive enterprise mitigation strategies for cybersecurity professionals. Learn how to secure your infrastructure now.
Critical OpenSSL vulnerability CVE-2024-9088 exposes systems to denial-of-service attacks. Our in-depth security advisory analyzes the memory corruption flaw, its CVSS 7.5 score, patching requirements for OpenSSL 3.3, 3.2, 3.1, 3.0, and mitigation strategies for Linux distributions. Essential reading for system administrators and DevOps teams.
SUSE Linux issues critical security patch SUSE-2025-4324-1 for GIMP addressing multiple vulnerabilities. Learn about the CVE details, enterprise risk exposure, and urgent patch deployment steps to secure your digital asset management workflows and prevent potential exploitation.
Just published a deep-dive analysis on the critical PostgreSQL security patch from SUSE (SUSE-2025-4325-1).
Discover how Linux 6.19's groundbreaking DMA-BUF support for VFIO PCI, led by NVIDIA, revolutionizes PCIe peer-to-peer (P2P) DMA. This deep dive covers virtualization, GPU passthrough, and high-performance computing (HPC) use cases for data centers, boosting RDMA and NVMe-oF performance. Learn about the kernel development impact on enterprise hardware.
A case study analysis of using GitHub Copilot for AI-assisted code modernization on Ubuntu's Error Tracker. Explore the results, accuracy challenges, and time-saving potential of LLMs for refactoring legacy systems and reducing technical debt. Learn best practices for implementation.
