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Ubuntu Blog OS

Ubuntu’s virtualization hardware enablement (HWE) stack: a new model for confidential computing enablement

Confidential computing is moving quickly. The foundation is already here: AMD SEV-SNP and Intel TDX have made it possible to run confidential virtual machines (VMs) with stronger protection for data in use. Ubuntu 26.04 Long Term Support (LTS) brings integrated host and guest support for both of these technologies, making confidential computing a native part […]

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Ubuntu Blog OS

Confidential computing and the new regulatory focus on data in use

Most organizations already understand encryption at rest and encryption in transit. These controls are mature, widely deployed, and often explicitly referenced in security frameworks. However, runtime is different: when an application processes sensitive information, that data is typically available in memory. In a traditional infrastructure model, the workload owner may need to trust a large […]

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Ubuntu Blog OS

Canonical announces the Enterprise Store as part of Ubuntu Pro

Canonical introduces a new way to manage software behind firewalls and in air-gapped environments with the Enterprise Store. The Enterprise Store makes software distribution manageable and scalable behind firewalls or in air-gapped environments. Available with an Ubuntu Pro subscription, the Enterprise Store respects the security protocols of strict environments, in a way that is controllable, […]

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MAAS installation: bare metal provisioning is easier than ever

MAAS brings cloud-like automation to physical servers. It helps teams discover, commission, deploy, and repurpose machines from a central control plane, turning bare metal into a programmable resource. But to experience that value, users first need to get MAAS up and running. That path is now cleaner and easier to follow. We’ve created new documentation […]

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Januscape vulnerability CVE-2026-53359 mitigations available

Introduction A local privilege escalation (LPE) vulnerability affecting the Linux kernel was publicly disclosed on July 6, 2026. The vulnerability was assigned CVE ID CVE-2026-53359 and is referred to as Januscape. This vulnerability affects all Ubuntu releases. Neither NVD nor Kernel.org have published their own CVSS scores for this issue; we calculated it as CVSS […]

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Managing Ubuntu on bare metal at scale

Modern infrastructure teams are expected to deliver cloud-like speed, consistency, and reliability, even when their workloads run on physical servers. Bare metal remains essential for many environments: private clouds, Kubernetes clusters, AI infrastructure, edge sites, regulated platforms, and large Ubuntu estates. But operating physical infrastructure at scale is difficult when provisioning, pat…

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Ubuntu Server: a platform made for enterprise scale

A platform is an environment that allows software to run smoothly across the infrastructure, runtime, and application layers. The key word there is “smoothly”: a good platform connects those layers so well that you don’t notice it. That’s what Ubuntu Server has become: the essential layer between bare metal and the apps running on top, […]

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Ubuntu Blog OS

Building an open source chain of trust: new research uncovers key blockers and ways forward

Canonical is pleased to share its latest research report, “The open source chain of trust.” Based on a survey of 500 DevOps professionals, the report highlights how organizations approach their open source software supply chains. While many companies are moving toward verifiable provenance and automated security workflows, internal misalignment and disjointed approaches remain serious challenges […

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Ubuntu Blog OS

DirtyClone Linux kernel local privilege escalation vulnerability fixes available

On June 25, 2026, JFrog published their research into CVE-2026-43503, referring to the vulnerability as DirtyClone. The vulnerability had previously been responsibly disclosed to the Linux kernel maintainers and the CVE record published on May 23, 2026. The vulnerability affects multiple Linux distributions, including all Ubuntu releases. The first security updates for Ubuntu were released […]

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Ubuntu Blog OS

pedit COW kernel local privilege escalation vulnerability mitigations

Mitigations are available for the Linux vulnerability with CVE ID CVE-2026-46331. The CVE ID was assigned on June 16 2026 and highlighted as a local privilege escalation (LPE) vulnerability on June 26, 2026. Known as “pedit COW”, this vulnerability affects multiple Linux distributions, including all Ubuntu releases starting with Bionic Beaver 18.04 LTS. Ubuntu Resolute […]

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Canonical becomes Gold Sponsor of Trifecta Tech Foundation

Canonical is pleased to announce it is now a Gold Sponsor of the Trifecta Tech Foundation, a non-profit that creates open source building blocks for critical infrastructure software. Canonical has supported the foundation’s work since 2025, co-sponsoring the development of projects like sudo-rs. The new €40,000/year contribution will help the foundation continue developing and maintaining […]

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Hunting a 16-year-old SQLite bug with TLA+: is dqlite affected?

This article was written by Marco Manino and Alberto Carretero, dqlite team at Canonical. 1. Anatomy of a SQLite bug Recently SQLite published a new version with a fix to a long-standing bug in the way that the Write Ahead Log (WAL) is checkpointed that leads to the corruption of the database. The important aspect […]

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Ubuntu Blog OS

Anbox Cloud on C4A metal: Android, at scale, without friction

Why C4A metal is a great place to run Android and why Anbox Cloud makes that practical. If you’ve spent even a small portion of time working with Android development at scale, you’ve likely encountered some pinch points. The platform was built for Arm-based devices, mobile physical hardware, and tightly controlled system environments. Cloud platforms, […]

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Ubuntu Blog OS

Canonical announces live kernel patching for Arm64

Canonical Livepatch now officially supports Arm64, further expanding its security patching automation capabilities. For the first time, Ubuntu on an Arm64 machine can apply critical kernel updates, without service interruption or rebooting. Starting with Ubuntu Core 26 for Arm64, and for Ubuntu Core 20 and onwards for AMD64 machines, a wider range of devices and […]

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How to use RISC-V custom instructions with Ubuntu

Introduction My previous blog talked about the importance of instruction set standardization for ecosystem stability and growth through the use of profiles. And standardization is indeed important, but since one of RISC-V’s great benefits is the ability to customize the instruction set, we should also consider how to support that ability. This blog looks at […]

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Ubuntu Blog OS v26.04

Ubuntu Summit 26.04: connected by open source

What an incredible experience! Ubuntu Summit 26.04 has officially drawn to a close, but the energy from our global community is still buzzing – in the comments section, on social media, and in news reports. Whether you joined us in person or tuned in from across the globe, you helped make this edition our most […]

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So you need to add microcontrollers to your fleet: now what?

Your Ubuntu Core fleet is running beautifully. OTA updates roll out in minutes. Every device is strictly confined, cryptographically attested, and carrying a 10 to 15 year long term support (LTS) commitment. The operational team sleeps soundly. Then the product roadmap meeting happens. The industrial floor needs vibration sensors on every motor. The smart building […]

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Validating real-world skills through Canonical Academy

In an increasingly volatile job market, standing out from the competition is vital. For many in the open source community, formal recognition for self-taught skills is a significant challenge. These skills are often built through hands-on hobbies, side projects, and deep community contributions. While the market is flooded with certificates and certifications, most fail to […]

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Ubuntu Blog OS

Virtualized Android comes to Anbox Cloud

With our latest 1.30.0 Anbox Cloud release, available today, we are introducing one of the most significant evolutions of the platform to date: support for virtualized Android. For the first time, Anbox Cloud can launch complete Android system images inside lightweight virtual machines, managed and orchestrated through the same Anbox APIs our users already rely […]