In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions but not for SError. enter_exception64() does not write ESR_ELx for any exception type, so the constructed syndrome is dropped. A guest L2 hypervisor taking a nested SError observes stale ESR_EL2.
This affects both kvm_inject_nested_serror() and the EASE path in kvm_inject_nested_sea().
Write ESR_EL2 for except_type_serror, matching except_type_sync.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-azureUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-generic-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-awsUpgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-oem-26.04aUpgrade linux-image-generic-64k-7.0Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-gkeUpgrade linux-image-aws-64kUpgrade linux-image-oem-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-gke-7.0Upgrade linux-image-gke-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-virtualUpgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-azure-fde-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-ibmUpgrade linux-image-gcpUpgrade linux-image-oracle-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-virtual-7.0Upgrade linux-image-7.0.0-1017-azureUpgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-oem-26.04Upgrade linux-image-azure-fdeUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gcp-7.0Upgrade linux-image-oracleUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-ibm-7.0Upgrade linux-image-azure-lts-26.04Upgrade linux-image-genericUpgrade linux-image-7.0.0-1013-oracle-64k | Oct 7, 2026 | Oct 6, 2026 |
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