PT-2026-64508

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM arm64 component where the flush hyp vcpu function copies the host vGIC state into the hyp's private vCPU without validating the used lrs value. Because used lr...

PT-2026-64506

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Pin source page for write when adding CPUID data for SNP guest When populating a guest memfd instance with the initial CPUID data for an SNP guest, acquire a writable pin on the source page as KVM will write back the...

PT-2026-64529

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the crypto ccp component where the system improperly initializes SNP for the ioctlSNP VLEK LOAD function. A userspace process could potentially trigger this code path...

Linux Distros Unpatched Vulnerability : CVE-2026-64284

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs...

Linux Distros Unpatched Vulnerability : CVE-2026-64513

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: x86: Unconditionally recompute CR8 intercept on PPR update The TPRTHRESHOLD field in the VMCS is used by VMX to induce VM exits when the guest's virtual TP...

PT-2026-64531

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the crypto ccp component where the sev move to init state function incorrectly initializes SNP for certain SEV ioctls. A userspace process could potentially trigger th...

Linux Distros Unpatched Vulnerability : CVE-2026-64308

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Do not initialize SNP for ioctlSNPVLEKLOAD Sashiko notes: if SEV initialization fails and KVM is actively running normal VMs, could a userspace...

Linux Distros Unpatched Vulnerability : CVE-2026-64307

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Do not initialize SNP for ioctlSNPCONFIG Sashiko notes: if SEV initialization fails and KVM is actively running normal VMs, could a userspace...

PT-2026-64504

In the Linux kernel, the following vulnerability has been resolved: KVM: guest memfd: Treat memslot binding offset+size as unsigned values When binding a memslot to a guest memfd file, treat the offset and size as unsigned values to fix a bug where the sum of the two can result in a false negativ...

PT-2026-64509

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

PT-2026-64528

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the crypto ccp component where the system could attempt to initialize SNP during an ioctlSNP CONFIG call. If SEV initialization fails while KVM is running normal VMs, a...

Linux Distros Unpatched Vulnerability : CVE-2026-64438

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: qat - fix VF2PF work teardown race in adfdisablesriov The VF2PF interrupt handler queues PF- side response work that stores a raw pointer to per-VF stat...

DEBIAN-CVE-2026-64247

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

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

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of instruction that generated a userspace exit for I/O, don't recheck L1 intercepts as KVM has already finished that phase of instructi...

kernel: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

A flaw was found in KVM in the Linux kernel. This vulnerability occurs due to improper validation of memory management unit MMU page roots after these pages are made available. An attacker could exploit this by triggering a scenario where KVM attempts to map memory into an invalid root, causing...

EUVD-2026-48656

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64247 KVM: x86: hyper-v: Bound the bank index when querying sparse banks

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

kernel: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

A flaw was found in KVM in the Linux kernel. This vulnerability occurs due to improper validation of memory management unit MMU page roots after these pages are made available. An attacker could exploit this by triggering a scenario where KVM attempts to map memory into an invalid root, causing...

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

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Don't recheck L1 intercepts when completing userspace I/O When completing emulation of instruction that generated a userspace exit for I/O, don't recheck L1 intercepts as KVM has already finished that phase of instructi...

kernel: KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

A flaw was found in KVM in the Linux kernel. This vulnerability occurs due to improper validation of memory management unit MMU page roots after these pages are made available. An attacker could exploit this by triggering a scenario where KVM attempts to map memory into an invalid root, causing...