CVE-2026-43133 KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f "KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state" made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGION

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CVE-2026-23401

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

CVE-2026-23402

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM module. This vulnerability allows a host user to bypass KVM's memory management rules by overwriting critical memory structures. This can lead to a compromise of the virtual machine's memory integrity, potentially causing...

Security Bulletin: Multiple Vulnerabilities of IBM Java SDK affect Linux KVM Agent from IBM Tivoli Monitoring for Virtual Environments

Summary IBM java SDK is used by Linux KVM Agent from IBM Tivoli Monitoring for Virtual Environments. Vulnerability Details CVEID:CVE-2026-21945 DESCRIPTION: Java SE is vulnerable to a denial of service, caused by an easily exploitable vulnerability issue that allows an remote attacker to cause a...

CVE-2026-23029

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix kvmdevice leak in kvmeiointcdestroy In kvmioctlcreatedevice, kvmdevice has allocated memory, kvmdevice-destroy seems to be supposed to free its kvmdevice struct, but kvmeiointcdestroy is not currently doing...

CVE-2026-23028 LoongArch: KVM: Fix kvm_device leak in kvm_ipi_destroy()

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix kvmdevice leak in kvmipidestroy In kvmioctlcreatedevice, kvmdevice has allocated memory, kvmdevice-destroy seems to be supposed to free its kvmdevice struct, but kvmipidestroy is not currently doing this, that...

MiracleLinux 4 : qemu-kvm-0.12.1.2-2.491.AXS4.1 (AXSA:2016-444:02)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2016-444:02 advisory. KVM for Kernel-based Virtual Machine is a full virtualization solution for Linux on x86 hardware. Using KVM, one can run multiple virtual machines running...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000879)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000879 advisory. The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service host OS panic or hang by...

MiracleLinux 4 : qemu-kvm-0.12.1.2-2.479.AXS4.2 (AXSA:2015-518:06)

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2015-518:06 advisory. KVM for Kernel-based Virtual Machine is a full virtualization solution for Linux on x86 hardware. Using KVM, one can run multiple virtual machines running...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002707)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002707 advisory. The x86decodeinsn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service host OS...

CVE-2025-71104

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer When advancing the target expiration for the guest's APIC timer in periodic mode, set the expiration to "now" if the target expiration is in the past...

PT-2025-52981

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw related to KVM Kernel-based Virtual Machine coalesced MMIO Memory Mapped I/O unregistration. Specifically, the target device is not properly destroyed an...

pKVM virtualization Android Privilege Escalation

The vulnerability of the pKVM virtualization technology protected Kernel-based Virtual Machine in Android operating systems is related to synchronization errors when using shared resources during page caching. Exploiting this vulnerability can allow attackers to gain increased privileges...

CVE-2025-40184

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix debug checking for np-guests using huge mappings When running with transparent huge pages and CONFIGNVHEEL2DEBUG then the debug checking in asserthostsharedguest fails on the launch of an np-guest. This WARNON...

CVE-2025-40181

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O

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KVM: SVM: Skip fastpath emulation on VM-Exit if next RIP isn't valid

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CVE-2025-40038

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Skip fastpath emulation on VM-Exit if next RIP isn't valid Skip the WRMSR and HLT fastpaths in SVM's VM-Exit handler if the next RIP isn't valid, e.g. because KVM is running with nrips=false. SVM must decode and emulate...