On 6/29/20 6:57 PM, Ed Greshko wrote:
On 2020-06-29 21:17, Sreyan Chakravarty wrote:
On 6/29/20 6:19 PM, Ed Greshko wrote:
Well, first, you did reboot after the latest version of
microcode_ctl was installed?
The microcode gets applied at boot time, each time.
On my system, microcode_ctl was updated on 2020-06-19.
dnf history list microcode_ctl
will tell you when that package was updated.
You've rebooted since then?
I rebooted multiple times since the installation and I have rebooted
now just to be sure.
$ dnf history list microcode_ctl
ID | Command line | Date and time |
Action(s) | Altered
--------------------------------------------------------------------------------
28 | | 2020-06-23 01:41 | E, I,
U | 115 <
26 | | 2020-06-12 17:51 | I,
U | 455 ><
19 | | 2020-05-09 18:02 | D, E, I,
U | 2335 ><
3 | | 2020-04-13 17:19 | E, I,
U | 1115 ><
1 | | 2020-04-13 16:42 |
Install | 2197 >E
As you see on my system the microcode_ctl package was installed on
23rd June, 2020.
What is the next step ?
Well, I suppose that would be filing a bugzilla against microcode_ctl.
Even though my CPU isn't affected I get...
CVE-2020-0543 aka 'Special Register Buffer Data Sampling (SRBDS)'
* Mitigated according to the /sys interface: YES (Not affected)
* SRBDS mitigation control is supported by the kernel: YES (found
SRBDS implementation evidence in kernel image. Your kernel is up to
date for SRBDS mitigation)
* SRBDS mitigation control is enabled and active: NO
> STATUS: NOT VULNERABLE (your CPU vendor reported your CPU model as
not vulnerable)
The first line shows mitigation is there....but not being used.
You system reports...
* Mitigated according to the /sys interface: NO (Vulnerable: No
microcode)
So, it sounds to me as if the conditions don't exist for microcode_ctl
to update the microcode on boot
even with the most recent update.
In the BZ I would include the output of "cat /proc/cpuinfo".
--
The key to getting good answers is to ask good questions.
Is BugZilla down right now ?
Can't open it, the connection is timed out.
--
Regards,
Sreyan
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