In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: Clear __hyp_running_vcpu when flushing the pKVM hyp vCPU
flush_hyp_vcpu() copies the host vCPU context into the hyp's private vCPU on every run. ctxt_to_vcpu() expects a guest context to have a NULL __hyp_running_vcpu, which is only ever set on the host context, so that it resolves the vCPU via container_of(). While this is generally the case, flush_hyp_vcpu() copies the context verbatim and does not enforce this, so a value provided by the host is dereferenced at EL2 (host -> EL2).
Fix by clearing __hyp_running_vcpu after the copy.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18-debuginfoUpgrade kernel6.18-modules-extraUpgrade perf6.18Upgrade microvm-kernel6.18Upgrade kernel6.12-debuginfoUpgrade kernel6.18Upgrade kernel6.18-tools-develUpgrade python3-perf6.12-debuginfoUpgrade kernel6.18-toolsUpgrade kernel6.18-develUpgrade python3-perf6.18Upgrade kernel6.18-headersUpgrade kernel6.12-tools-debuginfoUpgrade kernel-livepatch-6.12.100-125.179Upgrade kernel6.18-debuginfo-common-x86_64Upgrade bpftool6.12Upgrade kernel6.18-tools-debuginfoUpgrade kernel6.12Upgrade perf6.12-debuginfoUpgrade bpftool6.18Upgrade perf6.18-debuginfoUpgrade kernel-livepatch-6.18.39-79.141Upgrade bpftool6.18-debuginfoUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-modules-extraUpgrade python3-perf6.18-debuginfoUpgrade kernel6.12-tools-develUpgrade python3-perf6.12Upgrade bpftool6.12-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.18-modules-extra-commonUpgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.12-headersUpgrade kernel6.12-develUpgrade kernel6.12-modules-extra-commonUpgrade perf6.12 | Aug 18, 2026 | Jul 25, 2026 |
| Debian | — | Upgrade linux-6.12Upgrade linux | Aug 2, 2026 | Aug 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 31, 2026 | Jul 25, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-1019-raspi-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-gke-hwe-26.04Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-aws-7.0Upgrade linux-image-generic-7.0Upgrade linux-image-7.0.0-1013-oemUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-gke-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-generic-64k-7.0Upgrade linux-image-realtimeUpgrade linux-image-oem-26.04aUpgrade linux-image-virtual-7.0Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-7.0.0-31-generic-64kUpgrade linux-image-virtualUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1006-gke-64kUpgrade linux-image-7.0.0-1019-raspiUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-oracleUpgrade linux-image-realtime-64kUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-oem-7.0Upgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gkeUpgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gcp-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1018-nvidia-64kUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-1012-aws-64kUpgrade linux-image-oem-26.04Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-gke-64kUpgrade linux-image-oracle-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-7.0.0-1006-gkeUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-gcpUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-7.0.0-1013-ibmUpgrade linux-image-generic-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-2018-nvidia-bosUpgrade linux-image-7.0.0-1018-nvidiaUpgrade linux-image-7.0.0-31-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-azureUpgrade linux-image-7.0.0-1012-awsUpgrade linux-image-raspiUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-oem-26.04bUpgrade linux-image-7.0.0-31-genericUpgrade linux-image-azure-lts-26.04Upgrade linux-image-7.0.0-2018-nvidia-bos-64kUpgrade linux-image-gke-64k-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-31-realtime-64kUpgrade linux-image-ibmUpgrade linux-image-azure-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-nvidia-tegraUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-oracle-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-7.0Upgrade linux-image-genericUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidia | Sep 14, 2026 | Sep 7, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 13, 2026 | Jul 25, 2026 |
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