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Software & hardware support => Sparky Linux kernel => Topic started by: rektal on April 05, 2024, 07:41:44 AM

Title: Vulnerable eIBRS with unprivileged eBPF <SOLVED>
Post by: rektal on April 05, 2024, 07:41:44 AM
I have installed Sparky kernel 6.8.3-sparky8-amd64.
I have got 8 × Intel® Core™ i5-10400F CPU @ 2.90GHz processor.
There is an info about Spectre 2 vulnerability - Vulnerable eIBRS with unprivileged eBPF.

I have disable it using this command
$ sudo sysctl kernel.unprivileged_bpf_disabled=0
but after restart it stills persist.

When I use linux-image-6.6.15-amd64 kernel there is no info like this above.
How to fix it?





Title: Re: Vulnerable eIBRS with unprivileged eBPF
Post by: pavroo on April 05, 2024, 10:18:55 AM
I will check settings for the next build, thanks.
Title: Re: Vulnerable eIBRS with unprivileged eBPF
Post by: pavroo on April 05, 2024, 05:21:06 PM
Improved kernel 6.8.4 only so far, so test it and let me know does it help, please.
Title: Re: Vulnerable eIBRS with unprivileged eBPF
Post by: rektal on April 05, 2024, 08:05:44 PM
Thank you. It has helped.
Kernel 6.8.4-sparky8-amd64 is improved.
Title: Re: Vulnerable eIBRS with unprivileged eBPF
Post by: pavroo on April 05, 2024, 09:32:27 PM
Cool, so other sparky's kernels: 5.15, 6.1 and 6.6 will be fixed on next versions.
Title: Re: Vulnerable eIBRS with unprivileged eBPF <SOLVED>
Post by: rektal on April 06, 2024, 08:37:09 AM
I have noticed that my info About System shows only 8 × Intel® Core™ i5-10400F CPU @ 2.90GHz processor now. This is on kernel 6.8.4. My system monitor widget do not show ssd disks' temperature.

When I use 6.6.15 kernel widget shows these sensors and info About System shows 12 × Intel® Core™ i5-10400F CPU @ 2.90GHz processor.

This is strange but it is for another topic.
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