CVE-2026-89904: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix acpipackageids array overflow With LoongArch virt machine, a typical setting is one core per socket, there will max 256 sockets packages on one VM. With PPTT acpi table, array acpipackageids will be overflowed. Her...

CVE-2026-89775: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

PT-2026-93563

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM s390 architecture where the import wp info function fails to hold the kvm-srcu or kvm-slots lock when calling read guest abs. Because read guest abs utilizes k...

CVE-2026-89922: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Take srcu when importing watchpoint data importwpinfo backs up the original guest memory contents of a watchpoint with readguestabs, which is kvmreadguest and therefore resolves the memslot via kvmmemslots. That requir...

PT-2026-93552

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the KVM arm64 implementation, a flaw exists in how TLB Invalidation by Range is handled. Because the range can be based on an arbitrary Virtual Address VA, a guest could potentially...

CVE-2026-89923: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Free guest debug data on vcpu destroy kvms390clearbpdata is only called from kvmarchvcpuioctlsetguestdebug, i.e. when user space changes or disables debugging. A vCPU that is destroyed while hardware breakpoints are...

Linux Distros Unpatched Vulnerability : CVE-2026-89926

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: s390: Fix length check importwpinfo struct kvmhwbreakpoint::len is a u64 that is fully controlled by user space. This is then assigned to wpinfo-len, whic...

Linux Distros Unpatched Vulnerability : CVE-2026-89916

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry A VNCR TLB invalidation can occur on one vcpu while another vcpu is faulting in this sa...

Linux Distros Unpatched Vulnerability : CVE-2026-89907

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - LoongArch: KVM: Validate MSI data before routing it to EIOINTC pchmsisetirq passes e-msi.data straight into eiointcsetirq as the irq number. The MSI data comes...

Linux Distros Unpatched Vulnerability : CVE-2026-89957

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed The vfioapmdevhotunplugcfg function uses the return value of bitmapandnot to determi...

Linux Distros Unpatched Vulnerability : CVE-2026-89932

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: nVMX: Always flush vpid02 on first use Make sure vpid02 is always flushed on first use by setting lastvpid=0 when allocating vpid02...

Linux Distros Unpatched Vulnerability : CVE-2026-89958

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - s390/vfio-ap: Fix dereference matrixmdev-kvm without checking for NULL The apdriver structure has two fields which are function pointers to callbacks:...

Linux Distros Unpatched Vulnerability : CVE-2026-89917

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Handle VNCR TLB invalidation race with vcpuput VNCR unmapping While VNCR TLB invalidation always occurs under the MMU lock, vcpuput doesn't, while i...

Linux Distros Unpatched Vulnerability : CVE-2026-89921

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: s390: Zero initialize data structures for injectpfaulttoken kvminjectpfaulttoken only sets .type and .u.ext.extparams2 of the on-stack struct kvms390irq bu...

CVE-2026-89930: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Service local TLB flushes on failed nested VM-Enter KVM services local TLB flushes on "full" nested VM-Exits through nestedvmxvmexit, but not if a nested VM-Enter fails e.g. due to failed VMCS checks in...

PT-2026-93568

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 Hyper-V synthetic timer emulation where userspace or a guest can program a timer with a deadline in the past by causing an integer overflow. This occurs wh...

CVE-2026-89929: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: nVM: Ensure INVVPID is emulated on the correct physical CPU When emulating INVVPID, KVM executes INVVPID on the physical CPU using vpid02 instead of the L1 assigned VPID, after doing some validations on the operands. However...

PT-2026-93573

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nVMX component where vpid02 is not consistently flushed upon first use. This occurs because last vpid is not reset when vpid02 is freed during a VMXOFF...

CVE-2026-89927: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Clamp stimer deadline to avoid livelock Fix an issue where userspace or the guest can program an Hyper-V synthetic timer to have a deadline in the past via integer overflow, preventing the CPU from making...

PT-2026-93570

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nested VM nVM implementation where the INVVPID instruction may be emulated on an incorrect physical CPU. When emulating INVVPID, KVM uses vpid02 on the current...