PT-2026-51862

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM s390 PCI implementation where the GAIT table is indexed using double-scaling pointer arithmetic. The functions kvm s390 pci aif enable, kvm s390 pci aif disabl...

Important: kernel-livepatch-6.18.20-41.237

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry CVE-2026-46316 In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind...

Astra Linux – Vulnerability in Linux 5.15

A race condition in the x86 KVM subsystem within the Linux kernel, as of 6.1-rc6, allows guest OS users to cause a denial of service host OS crash or host OS memory corruption when nested virtualization is enabled and the TDP MMU is also enabled...

Astra Linux – Vulnerability in Linux 5.15

A NULL pointer dereference flaw was discovered in the Linux kernel’s KVM module. This flaw can lead to a denial of service in the x86emulateinsn function in arch/x86/kvm/emulate.c. The flaw occurs when an illegal instruction is executed on the guest CPU of the Intel model...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: arm64: Reassign the nestedmmus array to another location after mmulock The kvm-arch.nestedmmus array is processed under kvm-mmulock, including through the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap. This proces...

EUVD-2026-35406

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...

CVE-2026-46317

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Reassign nestedmmus array behind mmulock kvm-arch.nestedmmus is walked under kvm-mmulock, including from the MMU notifier path kvmunmapgfnrange - kvmnesteds2unmap, which can run at any time. kvmvcpuinitnested...

CVE-2026-46316 KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry vgicitsinvalidatecache walks the per-ITS translation cache with xaforeach and drops the cache's reference on each entry with vgicputirq. It puts...

CVE-2026-46316

A vulnerability in Linux kernel KVM for ARM64 (vgic-its) is resolved. The issue stemmed from vgic_its_invalidate_cache() traversing the per-ITS translation cache with xa_for_each() and dropping the cache’s reference on each entry using vgic_put_irq(), but it dropped the reference of the pointer r...

CVE-2026-46295 KVM: x86: Do IRR scan in __kvm_apic_update_irr even if PIR is empty

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Do IRR scan in kvmapicupdateirr even if PIR is empty Fall back to apicfindhighestvector when PID.ON is set but PIR turns out to be empty, to correctly report the highest pending interrupt from the existing IRR. In a...

CVE-2026-46295 KVM: x86: Do IRR scan in __kvm_apic_update_irr even if PIR is empty

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Do IRR scan in kvmapicupdateirr even if PIR is empty Fall back to apicfindhighestvector when PID.ON is set but PIR turns out to be empty, to correctly report the highest pending interrupt from the existing IRR. In a...

EUVD-2026-35161

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Do IRR scan in kvmapicupdateirr even if PIR is empty Fall back to apicfindhighestvector when PID.ON is set but PIR turns out to be empty, to correctly report the highest pending interrupt from the existing IRR. In a...

SUSE CVE-2026-46113

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN The shadow MMU computes GFNs for direct shadow pages using sp-gfn plus the SPTE index. This assumption breaks for shadow paging if the guest page tables are modifie...

CVE-2026-46171

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for RISC-V architecture. This vulnerability occurs when a second memory allocation fails during the vector context setup, causing a previously allocated memory block to be leaked. Over time, repeated occurrences of this issue...

kernel security update

An update is available for kernel. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

CVE-2026-46131

CVE-2026-46131 affects the Linux kernel KVM x86 code. The issue is a faulty check in slow flush hypercalls where is_guest_mode(vcpu) was used incorrectly; translate_nested_gpa() is only valid when an L2 guest runs with nested EPT/NPT enabled, so the condition should match translate_nested_gpa() i...

SUSE CVE-2026-46032

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Triple fault if restore host CR3 fails on nested VMEXIT If loading L1's CR3 fails on a nested VMEXIT, nestedsvmvmexit returns an error code that is ignored by most callers, and continues to run L1 with corrupted state....

SUSE CVE-2026-46071

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Avoid clearing VMCBLBR in vmcb12 svmcopylbrs always marks VMCBLBR dirty in the destination VMCB. However, nestedsvmvmexit uses it to copy LBRs to vmcb12, and clearing clean bits in vmcb12 is not architecturally defined...

CVE-2026-45987

A flaw was found in the KVM Kernel-based Virtual Machine nSVM component of the Linux kernel. This vulnerability occurs when the interrupt shadow state is not correctly synchronized to the cached Virtual Machine Control Block VMCB after a Level 2 L2 guest virtual machine VM execution. A local...

CVE-2026-46076

A flaw was found in the Kernel-based Virtual Machine KVM nSVM module of the Linux kernel. This vulnerability occurs when an unhandled VMMCALL is not properly intercepted by the Level 1 L1 hypervisor. A malicious Level 2 L2 guest operating system could exploit this by making specific hypercalls,...