From: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
To: "pbonzini@redhat.com" <pbonzini@redhat.com>,
"kas@kernel.org" <kas@kernel.org>,
"seanjc@google.com" <seanjc@google.com>
Cc: "x86@kernel.org" <x86@kernel.org>,
"zhangjiaji1@huawei.com" <zhangjiaji1@huawei.com>,
"binbin.wu@linux.intel.com" <binbin.wu@linux.intel.com>,
"Li, Xiaoyao" <xiaoyao.li@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"thomas.lendacky@amd.com" <thomas.lendacky@amd.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"michael.roth@amd.com" <michael.roth@amd.com>
Subject: Re: [PATCH 00/14] KVM: x86: Emulator MMIO fix and cleanups
Date: Wed, 25 Feb 2026 17:32:30 +0000 [thread overview]
Message-ID: <1993dd78bb601516e5e096b205b1137ecb80426e.camel@intel.com> (raw)
In-Reply-To: <20260225012049.920665-1-seanjc@google.com>
On Tue, 2026-02-24 at 17:20 -0800, Sean Christopherson wrote:
> Fix a UAF stack bug where KVM references a stack pointer around an exit to
> userspace, and then clean up the related code to try to make it easier to
> maintain (not necessarily "easy", but "easier").
>
> The SEV-ES and TDX changes are compile-tested only.
I ran it through our TDX CI.
Tested-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
next prev parent reply other threads:[~2026-02-25 17:32 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-25 1:20 Sean Christopherson
2026-02-25 1:20 ` [PATCH 01/14] KVM: x86: Use scratch field in MMIO fragment to hold small write values Sean Christopherson
2026-02-25 1:20 ` [PATCH 02/14] KVM: x86: Open code handling of completed MMIO reads in emulator_read_write() Sean Christopherson
2026-02-25 1:20 ` [PATCH 03/14] KVM: x86: Trace unsatisfied MMIO reads on a per-page basis Sean Christopherson
2026-02-25 1:20 ` [PATCH 04/14] KVM: x86: Use local MMIO fragment variable to clean up emulator_read_write() Sean Christopherson
2026-02-25 1:20 ` [PATCH 05/14] KVM: x86: Open code read vs. write userspace MMIO exits in emulator_read_write() Sean Christopherson
2026-02-25 1:20 ` [PATCH 06/14] KVM: x86: Move MMIO write tracing into vcpu_mmio_write() Sean Christopherson
2026-02-25 1:20 ` [PATCH 07/14] KVM: x86: Harden SEV-ES MMIO against on-stack use-after-free Sean Christopherson
2026-02-25 1:20 ` [PATCH 08/14] KVM: x86: Dedup kvm_sev_es_mmio_{read,write}() Sean Christopherson
2026-02-25 1:20 ` [PATCH 09/14] KVM: x86: Consolidate SEV-ES MMIO emulation into a single public API Sean Christopherson
2026-02-25 1:20 ` [PATCH 10/14] KVM: x86: Bury emulator read/write ops in emulator_{read,write}_emulated() Sean Christopherson
2026-02-25 1:20 ` [PATCH 11/14] KVM: x86: Fold emulator_write_phys() into write_emulate() Sean Christopherson
2026-02-25 1:20 ` [PATCH 12/14] KVM: x86: Rename .read_write_emulate() to .read_write_guest() Sean Christopherson
2026-02-25 1:20 ` [PATCH 13/14] KVM: x86: Don't panic the kernel if completing userspace I/O / MMIO goes sideways Sean Christopherson
2026-02-25 1:20 ` [PATCH 14/14] KVM: x86: Add helpers to prepare kvm_run for userspace MMIO exit Sean Christopherson
2026-02-25 17:32 ` Edgecombe, Rick P
2026-02-25 19:22 ` Sean Christopherson
2026-03-03 2:24 ` Sean Christopherson
2026-03-03 19:21 ` Edgecombe, Rick P
2026-03-03 19:44 ` Sean Christopherson
2026-03-03 19:51 ` Edgecombe, Rick P
2026-02-25 17:32 ` Edgecombe, Rick P [this message]
2026-02-25 20:19 ` [PATCH 00/14] KVM: x86: Emulator MMIO fix and cleanups Tom Lendacky
2026-02-27 20:19 ` Tom Lendacky
2026-03-05 17:07 ` Sean Christopherson
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