How to install Intel Microcode for reg_file_data_sampling vulnerability

Ask Fedora
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1

I’m running Fedora 40, my PC is vulnerable against reg_file_data_sampling

 grep Vulnerable /sys/devices/system/cpu/vulnerabilities/*
/sys/devices/system/cpu/vulnerabilities/reg_file_data_sampling:Vulnerable: No microcode

dnf can’t install intel microcode for this vulnerability

josephsaber@fedora:~$ sudo dnf check-update 
Last metadata expiration check: 0:06:28 ago on Tue 21 May 2024 07:45:31 PM EEST.
josephsaber@fedora:~$ sudo dnf upgrade -y
Last metadata expiration check: 0:06:32 ago on Tue 21 May 2024 07:45:31 PM EEST.
Dependencies resolved.
Nothing to do.
Complete!

any clue on how to fix this issue ?

2

Added f40, kernel

3

Possibly fwupdmgr ? It’s firmware is it not? DNF is specifically a package manager, and you could search it for related packages with dnf search microcode which produces this for me …

dnf search microcode
Last metadata expiration check: 2 days, 4:22:51 ago on Sun 19 May 2024 01:33:16 PM.
================================================ Name & Summary Matched: microcode =================================================
microcode_ctl.x86_64 : Tool to transform and deploy CPU microcode update for x86
==================================================== Summary Matched: microcode ====================================================
amd-ucode-firmware.noarch : Microcode updates for AMD CPUs
iucode-tool.x86_64 : iucode_tool is a program to manipulate microcode update collections for Intel i686 and X86-64 system
                   : processors, and prepare them for use by the Linux kernel