Linux

Common Problems 115989

Ubuntu 26.04 LTS – initramfs build fails with missing storage modules

🟠 High   ⏱ 5–30 min  Last verified: 11 July 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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How to Set Up Software RAID with mdadm on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up Software RAID with mdadm on RHEL 10

Introduction How to Set Up Software RAID with mdadm 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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AlmaLinux 10 — opencryptoki — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — opencryptoki — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:4717 Related CVEs: CVE-2026-23893 Upstream summary: The opencryptoki packages contain version 2.11 of the PKCS#11 API, implemented for IBM Cryptocards, such as IBM 4764 and 4765 crypto cards. These packages includes support […]

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Debian 13 — tcpdf — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — tcpdf — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 11 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-6100 CVE-2018-17057 CVE-2024-22640 CVE-2024-22641 CVE-2024-32489 CVE-2024-51058 CVE-2024-56519 CVE-2024-56520  +3 more Upstream summary: tcpdf before 6.2.0 uploads files from the server generating PDF-files to an external FTP. Table of […]

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openSUSE Tumbleweed — ruby3.4-rubygem-thor — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.4-rubygem-thor — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2025-54314 Upstream summary: Thor before 1.4.0 can construct an unsafe shell command from library input. NOTE: this is disputed by the Supplier because "the method […]

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Common Problems 116121

Ubuntu 26.04 LTS – high CPU usage from Tracker Miner – Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 11 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 […]

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Debian 12 — geshi — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — geshi — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 July 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5185 CVE-2008-5186 CVE-2012-3521 CVE-2025-2123 Upstream summary: The highlighting functionality in geshi.php in GeSHi before 1.0.8 allows remote attackers to cause a denial of service (infinite loop) via an […]

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Debian 13 — mtr — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mtr — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1224 CVE-2008-2357 CVE-2025-49809 Upstream summary: Off-by-one error in the mtr_curses_keyaction function for mtr 0.55 through 0.65 allows local users to hijack raw sockets, as demonstrated using the "s" […]

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