In the Linux kernel, the following vulnerability has been resolved:
KVM: x86: Ignore pending PV EOI if the vCPU has since disabled PV EOIs
Ignore KVM's internal "service pending PV EOI" request if the vCPU has disabled PV EOIs since the request was made. Asserting that PV EOIs are enabled can fail if reading guest memory in pv_eoi_get_user() fails, i.e. if pv_eoi_test_and_clr_pending() bails early, *and* the vCPU also disables PV EOIs.
kernel BUG at arch/x86/kvm/lapic.c:3338! Oops: invalid opcode: 0000 [#1] SMP CPU: 4 UID: 1000 PID: 890 Comm: pv_eoi_test Not tainted 7.0.0-d585aa5894d8-vm #337 PREEMPT Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:kvm_lapic_sync_from_vapic+0x12b/0x140 [kvm] Call Trace: <TASK> kvm_arch_vcpu_ioctl_run+0x1075/0x1c30 [kvm] kvm_vcpu_ioctl+0x2d5/0x980 [kvm] __x64_sys_ioctl+0x8a/0xd0 do_syscall_64+0xb5/0xb40 entry_SYSCALL_64_after_hwframe+0x4b/0x53 </TASK> Modules linked in: kvm_intel kvm irqbypass ---[ end trace 0000000000000000 ]---
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftoolUpgrade kernel-livepatch-6.1.180-225.360Upgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-modules-extra-commonUpgrade kernel-headersUpgrade python3-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-modules-extraUpgrade kernel-tools-develUpgrade kernelUpgrade python3-perfUpgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-develUpgrade perf | Sep 1, 2026 | Aug 15, 2026 |
| Debian | — | Upgrade linux | Aug 16, 2026 | Aug 16, 2026 |
| Redhat_linux | — | No solution exists | Aug 20, 2026 | Aug 15, 2026 |
| Ubuntu | — | Upgrade linux-image-aws-64kUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-realtimeUpgrade linux-image-azure-7.0Upgrade linux-image-awsUpgrade linux-image-6.8.0-1036-nvidia-tegra-rtUpgrade linux-image-ibm-6.8Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-azure-fdeUpgrade linux-image-oem-7.0Upgrade linux-image-generic-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-6.8.0-1067-aws-64kUpgrade linux-image-aws-6.8Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-azure-fips-6.8Upgrade linux-image-oracle-64kUpgrade linux-image-virtual-6.8Upgrade linux-image-7.0.0-1014-awsUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-azureUpgrade linux-image-aws-lts-24.04Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-6.8.0-1064-oracle-64kUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-6.8.0-1052-gkeopUpgrade linux-image-6.8.0-1069-azure-fdeUpgrade linux-image-laptop-23.10Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.1-1062-realtimeUpgrade linux-image-realtime-64kUpgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-6.8.0-1036-nvidia-tegraUpgrade linux-image-6.8.0-1067-aws-fipsUpgrade linux-image-aws-fips-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-kvmUpgrade linux-image-gcpUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1071-gcp-fipsUpgrade linux-image-oracle-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-generic-64k-7.0Upgrade linux-image-oem-26.04aUpgrade linux-image-6.8.0-1067-awsUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1071-azureUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-azure-fde-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1071-gcp-64kUpgrade linux-image-generic-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1071-azure-fipsUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-64k-7.0Upgrade linux-image-realtime-6.8.1Upgrade linux-image-6.8.0-1064-oracleUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-genericUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-6.8.0-1066-gke-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-gke-7.0Upgrade linux-image-azure-lts-26.04Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-7.0.0-1017-azureUpgrade linux-image-ibm-7.0Upgrade linux-image-ibmUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-gkeopUpgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-gcp-6.8Upgrade linux-image-oracleUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-azure-fde-7.0Upgrade linux-image-ibm-classicUpgrade linux-image-aws-7.0Upgrade linux-image-nvidia-tegraUpgrade linux-image-aws-64k-7.0Upgrade linux-image-6.8.0-147-fipsUpgrade linux-image-fipsUpgrade linux-image-6.8.0-147-lowlatencyUpgrade linux-image-6.8.0-1071-gcpUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-aws-fipsUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-6.8.0-147-lowlatency-64kUpgrade linux-image-6.8.0-1067-ibmUpgrade linux-image-6.8.0-1066-gkeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-lowlatency-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-oracle-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-gke-64kUpgrade linux-image-intel-iotgUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-virtualUpgrade linux-image-generic-64kUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-6.8.0-147-genericUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-oem-26.04Upgrade linux-image-gkeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-azure-lts-24.04Upgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-lowlatencyUpgrade linux-image-gkeop-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-147-generic-64k | Oct 7, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 21, 2026 | Aug 15, 2026 |
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