CVE-2026-89920: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory corruption by not reinjecting CK machine checks Channel-subsystem damage machine checks are for the host channel subsystem. The guest channel subsystem is emulated in the userspace VMM. There is no point in...

CVE-2026-90040: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

CVE-2026-89909: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Free init resources if kvminit fails kvmloongarchinit calls kvmloongarchenvinit to allocate the per-CPU kvmcontext vmcs and kvmloongarchops and to register the perf callbacks, and then calls kvminit. If kvminit...

CVE-2026-89921: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Zero initialize data structures for injectpfaulttoken kvminjectpfaulttoken only sets .type and .u.ext.extparams2 of the on-stack struct kvms390irq but the full ext substructure is copied into the cpu local variable on...

CVE-2026-89917: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: 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 it unmaps the VNCR page. The problem is that the invalidation evaluate...

CVE-2026-89916: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: 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 same page. Without correctly handling this, we can end up with the...

CVE-2026-89911: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly cap TLBI Range to the architural limit TLB Invalidation by Range has a fairly powerful way of encoding pretty large ranges in a small number of bits. This range can be based on an arbitrary VA, which means i...

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-2026-89914: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not...

CVE-2026-89907: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: 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 from userspace, that either via a KVMIRQROUTINGMSI entry set with...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-89918

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Correctly handle end of VA space TLBI invalidation Our TLB invalidation by VA code is based on comparing two ranges, one defined by the TLB, and one...

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...

CVE-2026-89926: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: 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, which is an int. The bounds check is done on the truncated value while the...

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...

CVE-2026-89919: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: keyop: use mmulock to read gmap-asce Every other dat consumer in this file kvms390getskeys, setskeys, getcmmabits, setcmmabits, MEMCLRCMMA, kvms390fixupprefix, kvmtestagegfn, kvmagegfn reads kvm-arch.gmap-asce inside t...

CVE-2026-89910: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix uninitialized stack variable issue with dmsintc Variable vector is declared on stack in function dmsintcinjectirq and sometimes it is used without initialized. Here fix this issue...

CVE-2026-89918: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly handle end of VA space TLBI invalidation Our TLB invalidation by VA code is based on comparing two ranges, one defined by the TLB, and one defined by the TLBI instruction. Each range is defined by a start an...

CVE-2026-89913: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v3: take an LPI reference in vgicv3savependingtables vgicv3savependingtables iterates dist-lpixa using xaforeach and dereferences the returned struct vgicirq in the loop body without holding a reference on the LP...