linux-kernel - Re: [PATCH 0/3] KVM: SVM: Unregister GALog notifier on module exit

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Message-ID: <176227791321.3934009.13375648150137883983.b4-ty@google.com>
Date: Tue,  4 Nov 2025 09:45:02 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Hou Wenlong <houwenlong.hwl@...group.com>
Subject: Re: [PATCH 0/3] KVM: SVM: Unregister GALog notifier on module exit

On Thu, 16 Oct 2025 12:06:40 -0700, Sean Christopherson wrote:
> Unregister KVM's GALog notifier when kvm-amd.ko is being unloaded so that
> a spurious GALog event, e.g. due to some other bug, doesn't escalate to a
> use-after-free.
> 
> I deliberately didn't tag this for stable@, as shuffling the setup code
> around could easily introduce more problems than it solves, e.g. the patch
> might apply cleanly to an older kernel, but blow up at runtime due to the
> ordering being wrong.
> 
> [...]

Applied to kvm-x86 fixes, thanks!

[1/3] KVM: SVM: Initialize per-CPU svm_data at the end of hardware setup
      https://github.com/kvm-x86/linux/commit/59a217ced3e7
[2/3] KVM: SVM: Unregister KVM's GALog notifier on kvm-amd.ko exit
      https://github.com/kvm-x86/linux/commit/adc6ae972971
[3/3] KVM: SVM: Make avic_ga_log_notifier() local to avic.c
      https://github.com/kvm-x86/linux/commit/aaac099459f9

--
https://github.com/kvm-x86/linux/tree/next