Kernel Drivers

Amazon Linux 2023 — kernel-livepatch-6.1.21-1.45 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.1.21-1.45 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • December 28, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2023-007 Related CVEs: CVE-2022-48425 CVE-2023-2124 CVE-2023-32233 Upstream summary: In the Linux kernel through 6.2.7, fs/ntfs3/inode.c has an invalid kfree because it does not validate MFT flags before replaying logs. (CVE-2022-48425) […]

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How to Set Up OpenTelemetry Collector on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up OpenTelemetry Collector on FreeBSD 14

  • December 28, 2023
  • FreeBSD
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Introduction How to Set Up OpenTelemetry Collector on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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How to Configure GEOM RAID on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure GEOM RAID on FreeBSD 14

  • December 28, 2023
  • FreeBSD
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Introduction How to Configure GEOM RAID on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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How to Limit Container Resources with cgroups on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Limit Container Resources with cgroups on Debian 12

  • December 28, 2023
  • Linux
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Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up limit container resources with cgroups on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

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How to Set Up Loki and Promtail on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up Loki and Promtail on FreeBSD 14

  • December 27, 2023
  • FreeBSD
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Introduction How to Set Up Loki and Promtail on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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How to Configure DNSSEC on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure DNSSEC on FreeBSD 14

  • December 27, 2023
  • FreeBSD
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Introduction How to Configure DNSSEC on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-1470)

  • December 27, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 27 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-1470 Related CVEs: CVE-2022-4269 CVE-2022-4744 CVE-2023-0266 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Tune Kernel Parameters with sysctl on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on FreeBSD 14

  • December 27, 2023
  • FreeBSD
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Introduction Deploying tune kernel parameters with sysctl on freebsd 14 on a FreeBSD 14 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the […]

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How to Configure RAID with mdadm on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure RAID with mdadm on Debian 12

  • December 27, 2023
  • Linux
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Introduction How to Configure RAID with mdadm on Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-26385)

  • December 25, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-26385 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan […]

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