Kernel Drivers

Common Problems 115948

AppArmor denies container runtime file access

🟠 High   ⏱ 5–30 min  Last verified: 27 May 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 […]

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How to Configure S3FS to Mount AWS S3 on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure S3FS to Mount AWS S3 on RHEL 10

Introduction How to Configure S3FS to Mount AWS S3 on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration […]

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SLES 16 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory ESSA-2026:0092 (see also SUSE bugzilla) Related CVEs: CVE-2026-43284 CVE-2026-43500 CVE-2026-31431 CVE-2026-23204 CVE-2026-23231 CVE-2026-23239 CVE-2026-23240 CVE-2026-23243  +12 more Upstream summary: In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid […]

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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-2025-28049)

🟠 High   ⏱ 15–60 min  Last verified: 27 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-28049 Related CVEs: CVE-2024-50022 CVE-2025-22058 CVE-2025-23143 CVE-2025-39883 CVE-2025-39885 CVE-2025-39911 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 115930

Ubuntu 26.04 LTS DKMS Module Build Fails After Kernel Update

🔴 Critical   ⏱ 5–30 min  Last verified: 25 May 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 […]

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How to Configure Static File Serving with Nginx on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Static File Serving with Nginx on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure static file serving with nginx both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Static File Serving with Nginx on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Install GraalVM on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install GraalVM on FreeBSD 15

Introduction How to Install GraalVM 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 for packet filtering, and […]

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openSUSE Tumbleweed — kernel-macros — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — kernel-macros — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:19666 (see also SUSE bugzilla) Related CVEs: CVE-2026-46333 CVE-2026-31694 CVE-2026-31697 CVE-2026-31698 CVE-2026-31699 CVE-2026-31700 CVE-2026-31706 CVE-2026-31707  +12 more Upstream summary: In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner […]

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Common Problems 114420

Kernel Updated but Reboot Not Performed

🟡 Medium   ⏱ 5–30 min  Last verified: 24 May 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 […]

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Amazon Linux 2023 — kernel-livepatch-6.12.73-95.123 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.12.73-95.123 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2026-142 Related CVEs: CVE-2026-43284 CVE-2026-31431 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags "Dirty Frag" and other […]

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