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KernelCare Blog

KernelCare is coming to Texas Linux Fest 2018
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KernelCare is coming to Texas Linux Fest 2018

KernelCare is coming to Texas Linux Fest 2018
Texas Linux Fest is an open source software event held in Austin on June 8 and 9, 2018, at the AT&T Conference Center. Whether you are a Linux enthusiast or a business expert, whether you run your school’s infrastructure or a non-profit organization, Texas Linux Fest is a great place for you to learn and to meet others. There will be more than ...
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CloudLinux and GDPR
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CloudLinux and GDPR

CloudLinux and GDPR
The General Data Protection Regulation ( GDPR ) (EU) 2016/679 is a regulation in the EU law on data protection and privacy for all individuals within the European Union. It also addresses the export of personal data outside the EU. The GDPR aims primarily to give control to citizens and residents over their personal data and to simplify the regulat...
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The winner of our Interop raffle has been announced!
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The winner of our Interop raffle has been announced!

The winner of our Interop raffle has been announced!
At Interop ITX 2018 in Las Vegas earlier this month, visitors had the chance to stop by the KernelCare booth, meet our team and talk about our rebootless and automated kernel security updates service . They also had a chance to participate in a raffle - every visitor had an option to receive an instant-win scratch card for a chance to win one of 7 ...
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New vulnerability found in Linux kernel: error handling can lead to corruption and DoS

New vulnerability found in Linux kernel: error handling can lead to corruption and DoS

New vulnerability found in Linux kernel: error handling can lead to corruption and DoS
A ptrace virtualization code to the debug registers has an incorrect error handling which was discovered by Andy Lutomirski and disclosed today (CVE-2018-1000199). This vulnerability can lead to corruption and DoS. In practice, if an illegal value is written, such as DR0, the internal state of the kernel's breakpoint tracking can become corrupt eve...
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Igor Seletskiy
OpenVZ 6 is not affected.
Sunday, 13 May 2018 00:58
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KernelCare selected as Best of Interop 2018 finalist!
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KernelCare selected as Best of Interop 2018 finalist!

KernelCare selected as Best of Interop 2018 finalist!
The 2018 Best of Interop ITX awards finalists were just revealed, and we are thrilled to share that KernelCare has been selected as the finalist in the Infrastructure category. Traditional IT infrastructure is changing giving way to new software-defined technologies, cloud, and automation. In this category, Interop ITX 2018 recognizes products that...
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Attending CloudFest? Come meet with our team!
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Attending CloudFest? Come meet with our team!

Attending CloudFest? Come meet with our team!
This year, we are looking forward to CloudFest with great anticipation - we are ready to share all of the new and exciting features we have been working on, and we come with a bit of fun. Stop by our booth #B04 and talk to our team, ask questions, and, as always, participate in our exciting raffle. But don't miss Igor Seletskiy's session on Wednesd...
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KernelCare fixes Meltdown and Spectre without reboots!

KernelCare fixes Meltdown and Spectre without reboots!

KernelCare fixes Meltdown and Spectre without reboots!
KernelCare now live patches Meltdown and Spectre (spectre-v1) that exploit critical vulnerabilities in modern processors. The list of supported distributions is available below. Free trial supports updates too. By now, you might have thought that the topic of Meltdown and Spectre vulnerabilities is taking a backstage in the news. Not so, as the imp...
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Recent Comments
Alexandre Parubochyi
Please follow https://cloudlinux.com/cloudlinux-os-blog/entry/intel-cpu-bug-kernelcare-and-cloudlinux... Read More
Tuesday, 06 February 2018 19:30
Alexandre Parubochyi
Microcode updates can often be applied without reboots - it really depends on hardware manufacturers. There is a microcode_ctl com... Read More
Friday, 09 February 2018 08:01
Irina Semenova
Meltdown and Spectre fixes were patched for OpenVZ
Thursday, 24 May 2018 12:12
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CloudLinux CLN downtime Monday, January 22nd, starting at 1:00 am EST
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cln

CloudLinux CLN downtime Monday, January 22nd, starting at 1:00 am EST

CloudLinux CLN downtime Monday, January 22nd, starting at 1:00 am EST
We will be performing planned CLN hardware upgrade from 1:00 am EST (6:00 am GMT) to 4:00 am EST (9:00 am GMT) on Monday, January 22nd, 2018. During that time you might experience issues with accessing CLN, registering new servers, converting servers to CloudLinux, registering new IP-based licenses using partner API, as well us updating servers. It...
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Intel CPU Bug - Meltdown and Spectre - KernelCare and CloudLinux

Intel CPU Bug - Meltdown and Spectre - KernelCare and CloudLinux

Intel CPU Bug - Meltdown and Spectre - KernelCare and CloudLinux
Update [May 29, 2018 12:25am PT] Meltdown fixes for Ubuntu 16.04 are now on test. To deploy them: edit /etc/sysconfig/kcare/kcare.conf Add: PREFIX=test Run: kcarectl --update TAGNAME: update-2018-05-29-test-1 ubuntu-xenial:   CVE-2017-5754: Systems with microprocessors utilizing speculative execution and     indirect branch predictio...
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Recent Comments
Igor Seletskiy
sorry, corrected the upgrade instructions.
Thursday, 04 January 2018 23:38
Igor Seletskiy
Do you have it configured for CloudLinux hybrid kernel? https://docs.cloudlinux.com/index.html?hybrid_kernel.html... Read More
Thursday, 04 January 2018 23:33
Igor Seletskiy
Our version (same as redhat) doesn't have any of these dmesg messages. so - pti_enabled is the official way to check a patch appl... Read More
Friday, 05 January 2018 18:30
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KernelCare crashes on CloudLinux 7 & CloudLinux 6 Hybrid

KernelCare crashes on CloudLinux 7 & CloudLinux 6 Hybrid

KernelCare crashes on CloudLinux 7 & CloudLinux 6 Hybrid
Updated: Dec 7, 2017, 8AM PT Our previous patch provided the fix of ext4 bug with KernelCare included a bug in unpatch. The bug was triggered by latest patch, and caused some number of servers to crash. The effect of the bug is that servers that use ext4 will crash. If they didn't crash - they will not crash now. Note that the new patch that trigge...
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Recent Comments
Inessa Atmachian
Hi Ryan, We expect a solution on our patch server that allows customers with older CloudLinux 7 and CloudLinux 6 Hybrid kernels t... Read More
Friday, 15 December 2017 16:35
Inessa Atmachian
Hi Ryan, Sorry for the delay in replying. We apologize but it is not fixed yet. Currently, the release that should fix this probl... Read More
Thursday, 04 January 2018 10:07
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