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From: Nathan Gao <zcgao@amazon.com>
To: <pbonzini@redhat.com>
Cc: <bkov@amazon.com>, <doebel@amazon.de>, <fgriffo@amazon.co.uk>,
	<kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<seanjc@google.com>, <stable@vger.kernel.org>, <zcgao@amazon.com>,
	<awallace@redhat.com>
Subject: Re: stable backports for "KVM: x86: Fix shadow paging use-after-free due to unexpected GFN"
Date: Tue, 30 Jun 2026 15:37:23 -0700	[thread overview]
Message-ID: <20260630223723.83727-1-zcgao@amazon.com> (raw)
In-Reply-To: <CABgObfawkiKRDz0to=oCjo1vygVAkHyZXAzpsLWT2GXwkszV_A@mail.gmail.com>

We identified commit a955cad84cda ("KVM: x86/mmu: Retry page fault if root is invalidated by memslot update")
may be the missing piece. After backporting this patch, it's no longer reproducible after 20 consecutive attempts.  

Thanks to Nicolas Saenz Julienne <nsaenz@amazon.com> who found this regression initially.

Best,
Nathan

      parent reply	other threads:[~2026-06-30 22:37 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-03 20:10 [PATCH] KVM: x86: Fix shadow paging use-after-free due to unexpected GFN Paolo Bonzini
2026-05-05 10:13 ` stable backports for "KVM: x86: Fix shadow paging use-after-free due to unexpected GFN" Paolo Bonzini
2026-05-29  8:37   ` Bjoern Doebel
2026-06-20  5:40     ` Paolo Bonzini
2026-06-25 22:04       ` Nathan Gao
2026-06-30  2:33       ` Nathan Gao
2026-06-30 22:37       ` Nathan Gao [this message]

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