Re: [Linux-6.12.y] XEN: CVE-2024-53241 / XSA-466 and Clang-kCFI

[Sedat Dilek]

On Sat, Dec 21, 2024 at 10:31 PM Andrew Cooper
<andrew.cooper3@xxxxxxxxxx> wrote:
>
> On 21/12/2024 6:25 pm, Sedat Dilek wrote:
> > With...
> >
> > dileks@iniza:~/src/xtf/git$ mv tests/xsa-454 ../
> > dileks@iniza:~/src/xtf/git$ mv tests/xsa-consoleio-write ../
>
> That's completely bizzare.   There's nothing interestingly different
> with those two tests vs the others.
>
> I take it the crash is repeatable when using either of these?
>
> ~Andrew

This time I stopped SDDM and thus KDE-6/Wayland session.

Tested with Debian's officially 6.12.6-amd64 kernel in VT-3.

test-hvm32pae-xsa-consoleio-write SUCCESS <--- 1st time I tried, never
said this is not OK

test-hvm64-xsa-454 leads to FROZEN system and DATA LOSS (here: ext4).
Reproducibly as told many times.- in Debian and selfmade kernels version 6.12.6.

Stolen from the picture I took with my smartphone:

sudo ./xft-runner test-hvm64-xsa-454

Executing 'xl create -p tests/xsa-454/test-hvm64-xsa-454.cfg'
Executing 'xl console test-hvm64-xsa-454'
Executing 'xl unpause test-hvm64-xsa-454'

^^ System does NOT react!

I can send you the picture on request.

-Sedat-