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Blog posts tagged
"kernel"

Rajan Patel
24 September 2025

Mythbusting the scope of Livepatch protection

Security Article

The purpose of this article is to share the technical realities of security patching for the Linux kernel, and the intended scope of the Linux kernel’s livepatch capability. We’ll cover when kernel live patching is most appropriate, and when updating deb and snap packages and then rebooting is the best option. ...

Henry Coggill
7 December 2023

Ubuntu 22.04 FIPS 140-3 modules available for preview

FIPS Article

Canonical has been working with our testing lab partner, atsec information security, to prepare the cryptographic modules in Ubuntu 22.04 LTS (Jammy Jellyfish) for certification with NIST under the new FIPS 140-3 standard. The modules passed all of atsec’s algorithm validation tests and are in the queue awaiting NIST’s approval. We can’t ...

Rajan Patel
28 February 2022

An overview of live kernel patching

Cloud and server Article

Learn how Canonical improves security on Linux with live kernel patching. Track Livepatch activity over time in Landscape. ...

Edoardo Barbieri
14 February 2022

Low latency Linux for industrial embedded systems – Part III

Internet of Things Article

Welcome to the concluding chapter of this three-part blog series on the low latency Linux kernel for industrial embedded systems.   Each blog is standalone and can be read independently from the others, although you may want to start at the beginning for some continuity. If you need a quick refresher on userland and kernel space, ...

Edoardo Barbieri
11 February 2022

Low latency Linux for industrial embedded systems – Part II

Internet of Things Article

Welcome to Part II of this three-part blog series on adopting the low latency Linux kernel for your embedded systems. In case you missed it, check out Part I for a brief intro on preemptable processes in multiuser systems and memory split into kernel and user space. The low-latency Ubuntu kernel ships with a 1000 ...

Edoardo Barbieri
10 February 2022

Low latency Linux for industrial embedded systems – Part I

Internet of Things Article

Welcome to this mini blog series on the low latency Linux kernel for industrial embedded systems!  The real-time patch, which is not fully upstream yet, has had many developers wonder about stable alternatives for their projects adopting an embedded Linux operating system (OS) with latency requirements in the milliseconds’ range. The low- ...

Nikos Mavrogiannopoulos
23 November 2021

Cloud-optimized Linux kernels – what makes Ubuntu the top OS across the clouds

Cloud and server Article

Ubuntu is the platform of choice for deploying and running workloads on public clouds. No other operating system gives you better performance and consistency of experience across public clouds, including Amazon, Azure, Google, IBM and Oracle. There is a reason behind this exceptional experience. By design, Ubuntu images in public clouds i ...

Alex Murray
19 October 2021

What’s new in security for Ubuntu 21.10?

Ubuntu Article

Ubuntu 21.10 is the latest release of Ubuntu and comes as the last interim release before the forthcoming 22.04 LTS release due in April 2022. As the interim releases are often proving grounds for upcoming features in the LTS releases, this provides a good opportunity to take stock of some of the latest security features ...

Canonical
14 September 2021

Ubuntu Livepatch on-prem reduces downtime and unplanned work on enterprise environments!

Canonical announcements Article

London, United Kingdom – Canonical announces Ubuntu Livepatch on-prem, an enhancement to its Ubuntu Livepatch service enabling organisations to take control of their kernel livepatching policy. Designed for complex enterprise environments that follow their own patch rollout policy, Ubuntu Livepatch on-prem provides the basis for an effici ...

Nikos Mavrogiannopoulos
9 July 2021

Linux kernel Livepatching

Cloud and server Article

Ubuntu Livepatch is the service and the software that enables organizations to quickly patch vulnerabilities on the Ubuntu Linux kernels. Livepatch provides uninterrupted service while reducing fire drills during high and critical severity kernel vulnerabilities. ...

Alex Murray
19 May 2021

What’s new in security for Ubuntu 21.04?

Cloud and server Article

Ubuntu 21.04 is the latest release of Ubuntu and comes at the mid-point between the most recent Long Term Supported (LTS) release of Ubuntu 20.04 LTS and the forthcoming 22.04 LTS release due in April 2022. This provides a good opportunity to take stock of some of the latest security features delivered in this release, ...

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