Re: kernel NULL pointer dereference in quirk_clear_strap_no_soft_reset_dev2_f0 -> amd_smn_read

[Borislav Petkov]

On Fri, Jun 05, 2026 at 10:23:18PM +0200, Marek Marczykowski-Górecki wrote:
> Instead of the series? No, that's not enough. amd_smn_read() is called
> from quirk_clear_strap_no_soft_reset_dev2_f0, so it would still hit NULL
> at amd_roots in __amd_smn_rw(). But if you mean instead of the first
> patch (but apply the second as is), it should work. I don't have
> affected hardware, but I'll ask the affected user to test this version.

amd_smn_read() should not happen in guests. It is that simple.

-- 
Regards/Gruss,
    Boris.

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