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-2026-63807

CVE-2026-63807 concerns the Linux kernel KVM: x86/mmu path. The issue arises when recovering hugepages in the shadow MMU, where the base guest frame number (gfn) of a shadow page must be verified to be within the target memslot before querying the max mapping level. If the gfn is not pre-checked,...

CVE-2026-63807 KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

EUVD-2026-45473

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level When recovering hugepages in the shadow MMU, verify that the base gfn of the shadow page is actually contained within the target memslot, before queryi...

16-Year-Old Linux KVM Flaw Lets Guest VMs Escape to Host on Intel and AMD x86 Systems

A use-after-free bug in Linux's KVM hypervisor can be triggered from a guest virtual machine to corrupt the shadow-page state of the host kernel that runs it. Dubbed 'Januscape' and tracked as CVE-2026-53359, the flaw sits in the shadow MMU code that KVM shares across both Intel and AMD. The publ...

Januscape

Januscape: Guest-to-Host Escape in KVM/x86 Abstract...

CVE-2026-53343

In the Linux kernel, the following vulnerability has been resolved: ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow Commit 44e9a3bb76e5 "ARM: 9430/1: entry: Do a dummy read from VMAP shadow" added a dummy read from the KASAN VMAP stack shadow in switchto. The read uses ldr, but the...

EUVD-2026-40977

In the Linux kernel, the following vulnerability has been resolved: ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow Commit 44e9a3bb76e5 "ARM: 9430/1: entry: Do a dummy read from VMAP shadow" added a dummy read from the KASAN VMAP stack shadow in switchto. The read uses ldr, but the...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from improper checks during the processing of shadow memory when the direct MMU overwrites the SPTE. This...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: kmsan: fixed an issue where out-of-bounds access to shadow memory occurred. Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: Unable to handle a page fault for the address:...

EUVD-2022-55748

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasaninit Hi Atish, It seems that the panic is due to the missing memcpy during kasaninit. Could you please check whether this patch is helpful? When doing kasanpopulate, the new allocated...

CVE-2022-50657

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasaninit Hi Atish, It seems that the panic is due to the missing memcpy during kasaninit. Could you please check whether this patch is helpful? When doing kasanpopulate, the new allocated...

UBUNTU-CVE-2022-50657

In the Linux kernel, the following vulnerability has been resolved: riscv: mm: add missing memcpy in kasaninit Hi Atish, It seems that the panic is due to the missing memcpy during kasaninit. Could you please check whether this patch is helpful? When doing kasanpopulate, the new allocated...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989415)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989415 advisory. In the Linux kernel, the following vulnerability has been resolved: sched/scs: Reset task stack state in bringupcpu To hot unplug a CPU, the idle task on that CPU...

Linux Distros Unpatched Vulnerability : CVE-2025-40008

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable t...

SUSE CVE-2025-40008

In the Linux kernel, the following vulnerability has been resolved: kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable to handle page fault for address: ffffbc3840291000 PF: supervisor read...

EUVD-2025-35072

In the Linux kernel, the following vulnerability has been resolved: kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable to handle page fault for address: ffffbc3840291000 PF: supervisor read...

CVE-2025-40008

In the Linux kernel, the following vulnerability has been resolved: kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable to handle page fault for address: ffffbc3840291000 PF: supervisor read...

UBUNTU-CVE-2025-40008

In the Linux kernel, the following vulnerability has been resolved: kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable to handle page fault for address: ffffbc3840291000 PF: supervisor read...

CVE-2025-40008

In the Linux kernel, the following vulnerability has been resolved: kmsan: fix out-of-bounds access to shadow memory Running sha224kunit on a KMSAN-enabled kernel results in a crash in kmsaninternalsetshadoworigin: BUG: unable to handle page fault for address: ffffbc3840291000 PF: supervisor read...