CVE-2026-64561

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...

UBUNTU-CVE-2026-64561

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root after making MMU pages available Check for a "stale" page fault, i.e. for an invalid and/or obsolete root, after making MMU pages available for the shadow MMU. If reclaiming shadow pages...

EUVD-2026-52602

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Check for invalid/obsolete root after making MMU pages available Check for a "stale" page fault, i.e. for an invalid and/or obsolete root, after making MMU pages available for the shadow MMU. If reclaiming shadow pages...

CVE-2026-64561

CVE-2026-64561 is a Linux kernel KVM/x86 vulnerability related to the shadow MMU; after MMU pages are made available, reclaiming a zapped in-use root can lead to mapping memory into an invalid root, violating the invariant that invalid pages are not on the active MMU page list. The flaw has histo...

CVE-2026-64282

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine for arm64 architectures. A race condition between the kvmtranslatevncr function and an MMU Memory Management Unit notifier can lead to a Page Frame Number PFN leak. This occurs because an early return in kvmtranslatevncr fail...

CVE-2026-64288

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...

EUVD-2026-49000

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...

CVE-2026-64282 KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier

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...

CVE-2026-64269

The CVE-2026-64269 issue affects the Linux kernel’s RDMA path (RDMA/rtrs-srv) where rdma_write_sg() uses desc[0].len from the wire descriptor to determine the RDMA_WRITE length. The length could exceed the bound of the mapped chunk because it wasn’t checked against max_chunk_size, enabling a peer...

CVE-2026-63807

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 memory management unit MMU. A malicious guest operating system could create a hugepage mapping that extends beyond the boundaries of its allocated memory slot. This improper handling of memory boundaries by KVM can lead t...

CVE-2026-53372

A flaw was found in the Linux kernel's Input/Output Memory Management Unit IOMMU subsystem. This vulnerability arises in virtualized environments when a nested domain attempts to attach to a Process Address Space ID PASID, a mechanism for devices to access memory, while its parent domain is...

PT-2026-61123

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds access issue exists in the KVM x86 MMU when recovering hugepages in the shadow MMU. The system fails to verify if the base guest frame number gfn of the shadow page is...

PT-2026-61469

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A latent bug exists in the IOMMU Input-Output Memory Management Unit subsystem when iommu debug is enabled. The issue occurs during the map error flow where iommu unmap is called,...

EUVD-2026-43037

Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causing use after free, which helps in facilitating unprivileged memory access from a shader code. Triggering failure path in the MMU mapping logic by a malicious code could lead to incomplete...

CVE-2026-7639

Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causing use after free, which helps in facilitating unprivileged memory access from a shader code. Triggering failure path in the MMU mapping logic by a malicious code could lead to incomplete...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: usb: xhci: Apply the link chain quirk on NEC isoc endpoints Two distinctly different samples of NEC uPD720200 one with a start/stop bug, one without it were observed to cause IOMMU faults after some “Missed Service Errors”. Th...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ptrace: The logic related to getdumpable has been made slightly more robust. The “dumpability” of a task essentially relates to the memory image of the task—the concept stems from whether the task can generate a core dump or not...

CVE-2026-53359 KVM: x86: Fix shadow paging use-after-free due to unexpected role

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected role Commit 0cb2af2ea66ad "KVM: x86: Fix shadow paging use-after-free due to unexpected GFN" fixed a shadow paging mismatch between stored and computed GFNs; the bug...

CVE-2026-53312

A flaw was found in the Linux kernel's IOMMU Input/Output Memory Management Unit component for RISC-V architectures. An integer overflow in the invalidation path can lead to an infinite loop. This vulnerability could allow a local attacker to cause a Denial of Service DoS by triggering the overfl...