Amazon Linux 2023 — kernel-livepatch-6.12.40-64.114 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

July 4, 2026
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-2025-105 Related CVEs: CVE-2025-39677 CVE-2025-39923 CVE-2025-39955 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix backlog accounting in qdisc_dequeue_internal (CVE-2025-39677) In the Linux kernel, the […]

MicroK8s Not Starting on Ubuntu 26.04 LTS

July 4, 2026
Tutorials
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🟠 High ⏱ 5–30 min Last verified: 4 July 2026 Affected versions: 26.04 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs […]

How to Set Up HTTPS Redirect in Nginx on FreeBSD 15

July 4, 2026
FreeBSD
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Introduction How to Set Up HTTPS Redirect in Nginx on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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 […]

Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide

July 4, 2026
Linux
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🟠 High ⏱ 15–60 min Last verified: 4 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read • Source: ELSA advisory ELSA-2026-50279 Related CVEs: CVE-2026-46333 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Fix Broken Dependencies After Upgrading to Ubuntu 26.04 LTS

July 2, 2026
Tutorials
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🟠 High ⏱ 5–30 min Last verified: 2 July 2026 Affected versions: 26.04 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs […]

How to Set Up MySQL Master-Replica Replication on RHEL 10

July 2, 2026
Linux
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Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying set up mysql master-replica replication both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up MySQL Master-Replica Replication on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

High CPU Usage by kswapd on RHEL 9

July 2, 2026
Tutorials
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🟡 Medium ⏱ 5–30 min Last verified: 2 July 2026 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs References & Further […]

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50262)

July 2, 2026
Linux
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🟠 High ⏱ 15–60 min Last verified: 2 July 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2026-50262 Related CVEs: CVE-2025-54518 CVE-2025-71120 CVE-2026-23074 CVE-2026-31431 CVE-2026-31628 CVE-2026-43033 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

FreeBSD 15 — qemu-user-static — multiple vulnerabilities (20 CVEs) — patch and remediation guide

July 1, 2026
BSD
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🟠 High ⏱ 15–60 min Last verified: 1 July 2026 Affected versions: FreeBSD 15 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: qemu — denial of service vulnerability in Rocker switch emulation Related CVEs: CVE-2015-3214 CVE-2015-5154 CVE-2015-5158 CVE-2015-5165 CVE-2015-5166 CVE-2015-5225 CVE-2015-5239 CVE-2015-5278 +12 more Upstream summary: Prasad J Pandit, Red Hat Product […]

Ubuntu 26.04 LTS NVIDIA Driver Update Causes Black Screen

July 1, 2026
Linux
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🔴 Critical ⏱ 5–30 min Last verified: 1 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read 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 Prevention & Hardening Related Errors […]

Kernel Drivers

Amazon Linux 2023 — kernel-livepatch-6.12.40-64.114 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

MicroK8s Not Starting on Ubuntu 26.04 LTS

How to Set Up HTTPS Redirect in Nginx on FreeBSD 15

Oracle Linux 10 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide

Fix Broken Dependencies After Upgrading to Ubuntu 26.04 LTS

How to Set Up MySQL Master-Replica Replication on RHEL 10

High CPU Usage by kswapd on RHEL 9

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2026-50262)

FreeBSD 15 — qemu-user-static — multiple vulnerabilities (20 CVEs) — patch and remediation guide

Ubuntu 26.04 LTS NVIDIA Driver Update Causes Black Screen

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