CVE-2026-64283

CVE-2026-64283 : In the Linux kernel KVM guest_memfd binding, the offset and size for a memslot were treated inconsistently (signed/unsigned), enabling a potential overflow-related bypass where an extremely large positive offset plus size could be misinterpreted as smaller than the file size. The...

CVE-2026-64282

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvmtranslatevncr races MMU notifier In the case that kvmtranslatevncr races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to...

EUVD-2026-48994

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvmtranslatevncr races MMU notifier In the case that kvmtranslatevncr races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to...

SUSE-SU-2026:3248-1 Security update for the Linux Kernel RT (Live Patch 15 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.54 fixes various security issues: The following security issues were fixed: - CVE-2026-53359: KVM: x86: Fix shadow paging use-after-free due to unexpected role bsc1270060. - CVE-2026-53366: ipv4: account for fraggap on the paged...

SUSE-SU-2026:3246-1 Security update for the Linux Kernel RT (Live Patch 14 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.51 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. -...

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...

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-2026-64529

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Do not initialize SNP for ioctlSNP VLEK LOAD Sashiko notes: if SEV initialization fails and KVM is actively running normal VMs, could a userspace process trigger this code path via /dev/sev ioctls e.g., SEV PDH GEN...

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-2026-64531

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Do not initialize SNP for SEV ioctls Sashiko notes: if SEV initialization fails and KVM is actively running normal VMs, could a userspace process trigger this code path via /dev/sev ioctls e.g., SEV PDH GEN and zero...

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...

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-2026-64438

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...