On Sat, Aug 1, 2020 at 2:57 PM David Collier-Brown via talk <talk@gtalug.org> wrote:

On 2020-08-01 1:26 p.m., Russell Reiter via talk wrote:

On Sat, Aug 1, 2020 at 12:03 PM D. Hugh Redelmeier via talk <talk@gtalug.org> wrote:

https://access.redhat.com/solutions/5272311
https://arstechnica.com/gadgets/2020/07/red-hat-and-centos-systems-arent-booting-due-to-boothole-patches/

Don't do upgrades to Fedora, RHEL, CentOS until you read those.

I'm not sure if it was necessary or not, but I killed all my dnfdragora-updater processes and also commented out the contents of /etc/xdg/autostart/org.mageia.dnfdragora-updater.desktop so that dnfdragora-updater dies if it tries to run

That's for the xfce spin of Fedora 31...

Now all I have to do is remember to re-enable it after the bug is fixed (;-))

I did

rpm -qa grub2-\* shim-\* --qf "%{SOURCERPM}\n" | sort | uniq

on my Fedora and got

grub2-2.02-109.fc31.src.rpm
shim-15-8.src.rpm

so my version is ok.

It looks like this problem was caused by a patch which then allowed a malformed token to cause a buffer overflow.

-- 
David Collier-Brown,         | Always do right. This will gratify
System Programmer and Author | some people and astonish the rest
davecb@spamcop.net           |                      -- Mark Twain
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Russell