Re: [regression 6.1.y] discard/TRIM through RAID10 blocking (was: Re: Bug#1104460: linux-image-6.1.0-34-powerpc64le: Discard broken) with RAID10: BUG: kernel tried to execute user page (0) - exploit attempt?

[Melvin Vermeeren <vermeeren@vermwa.re>]

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Hi Salvatore,

I had been unexpectedly busy the past week, caught up to all the mails just 
now. Many thanks to everyone involved and the additional information from 
several people, am happy to see it.

On Wednesday, 30 April 2025 17:55:20 Central European Summer Time Salvatore 
Bonaccorso wrote:
> Melvin, the same change went as well in other stable series, 6.6.88,
> 6.12.25, 6.14.4, can you test e.g. 6.12.25-1 in Debian as well from
> unstable to see if the regression is there as well?

Specifically for this, I did just now test this with Debian testing's 
6.12.25-1, albeit on amd64 instead of ppc64le, with an identical storage 
layout and can confirm the issue does *not* exist there.

This confirms what others already discovered by now, I agree with the findings 
and have nothing to add specifically.

Thanks again to all,

-- 
Melvin Vermeeren
Systems engineer

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