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AKwUvByXq+Yb7LdEaIT0cF1HoFC93Wbnl5V2mMLY8tjcDZBueEZIv1hSra1AtUZXPt+tWVh13NWZI/JEFRR1KuY=@vger.kernel.org X-Gm-Message-State: AFuF++lSc7hQo9FgzHDZJ40vqiCCgXHhnjL6tRXVoS1S5/SoxMiSWNQR aNp700IoV3Q8nEj1g8XM0KI43AF1QZXQMOrf+kvtCizitGO8/KMw5CRoKTatYXyvKPIgFqkZ1cl D68A7VQ== X-Received: from pgdf25.prod.google.com ([2002:a05:6a02:5159:b0:cc7:5367:5720]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:6a1d:b0:3da:755f:a031 with SMTP id adf61e73a8af0-3ddf7cfbfdbmr2722797637.12.1790178670395; Wed, 23 Sep 2026 08:51:10 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 23 Sep 2026 08:51:05 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.55.0.1082.g2b9226bbc0-goog Message-ID: <20260923155108.1550622-1-seanjc@google.com> Subject: [PATCH v2 0/3] KVM: SVM: Fix AVIC Physical ID table UAF From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Naveen N Rao , Atish Patra Content-Type: text/plain; charset="UTF-8" Naveen's fix to clear AVIC Physical ID table entries if vCPU creation fails, to ensure the CPU doesn't access the freed virtual APIC state. v2: Add prep patches to consolidate the table bounds checks. v1: https://lore.kernel.org/all/20260903062856.2090499-1-naveen@kernel.org Naveen N Rao (1): KVM: SVM: Clear AVIC Physical ID table entry if vCPU creation fails Sean Christopherson (2): KVM: SVM: Add paranoid helper for checking if vCPU is AVIC-addressable KVM: SVM: Use "is AVIC-addressable" helper to sanity check load()/put() arch/x86/kvm/svm/avic.c | 22 ++++++++++++++++------ arch/x86/kvm/svm/svm.c | 6 +++++- arch/x86/kvm/svm/svm.h | 1 + 3 files changed, 22 insertions(+), 7 deletions(-) base-commit: d4b7fb647204f0c81dfeae2d1a708e4d858e0c94 -- 2.55.0.1082.g2b9226bbc0-goog