Photon OS 4.0: Linux PHSA-2026-4.0-0977

An update of the linux package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2026-4.0-0977. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

SUSE-SU-2026:2216-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2022-49979: net: fix refcount bug in skpsockget bsc1245109. - CVE-2023-20585: x86/CPU: Fix FPDSS on Zen1 bsc1243603. - CVE-2026-23239: espintcp: Fix race condition...

CVE-2026-46131

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: check for nEPT/nNPT in slow flush hypercalls Checking isguestmodevcpu is incorrect, because translatenestedgpa is only valid if an L2 guest is running with nested EPT/NPT enabled. Instead use the same condition as...

KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0

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Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect implementation of the isguestmode function in KVM x86’s slow refresh supercall...

UBUNTU-CVE-2026-46059

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN For guests with NRIPS disabled, L1 does not provide NextRIP when running an L2 with an injected soft interrupt, instead it advances the current RIP before...

CVE-2026-46082

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a UD when EFER.SVME is not set. Add a check to properly inject UD when EFER.SVME=0. sean: tag for stable@...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: arm64: Fixed a shift-out-of-bounds bug Fixed a shift-out-of-bounds bug reported by UBSAN when running a VM with MTE enabled on a host kernel. UBSAN: Shift-out-of-bounds in arch/arm64/kvm/sys regs.c:1988:14. The shift...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV – Lock all vCPUs when synchronizing VMSAs for SNP launches to complete. Lock all vCPUs when synchronizing and encrypting VMSAs for SNP guests. Allowing the user space to manipulate or run a vCPU while its state is being...

Astra Linux - уязвимость в open-vm-tools

A malicious actor who has been granted “Guest Operation Privileges” https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html can potentially elevate their privileges if the target virtual machine has been assigned a more privileged “Guest Alias...

Unbreakable Enterprise kernel security update

5.15.0-320.202.8.4 - ptrace: slightly saner 'getdumpable' logic Linus Torvalds Orabug: 39391447 CVE-2026-46333 5.15.0-320.202.8.3 - nfsd: fix heap overflow in NFSv4.0 LOCK replay cache Jeff Layton Orabug: 39362036 CVE-2026-31402 - net/sched: Only allow actct to bind to clsact/ingress qdiscs and...

ALPINE-CVE-2026-23558

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then be freed while...

PT-2026-38957

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM nSVM component where a user-triggerable warning occurs in the svm set nested state function when nested svm load cr3 fails. This condition can be easily...

KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish

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Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013287)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013287 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEXIT pa...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007595)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007595 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle SRCU initialization failure during page track init Check the return of...

CVE-2026-32220

Improper access control in Windows Virtualization-Based Security VBS Enclave allows an authorized attacker to bypass a security feature locally...

PT-2026-32725

Name of the Vulnerable Software and Affected Versions Windows Virtualization-Based Security VBS Enclave affected versions not specified Description An untrusted pointer dereference in the Windows Virtualization-Based Security VBS Enclave allows an authorized attacker to locally bypass a security...

qemu-kvm: VNC WebSocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network acces...

ALPINE-CVE-2026-23555

Any guest issuing a Xenstore command accessing a node using the illegal node path "/local/domain/", will crash xenstored due to a clobbered error indicator in xenstored when verifying the node path. Note that the crash is forced via a failing assert statement in xenstored. In case xenstored is...