Virtuozzo Infrastructure 7.4 Hotfix 1 (7.4.0-75)

This update provides stability fixes. Vulnerability id: VSTOR-102068, VSTOR-102069, VSTOR-138302 Creating a VM in a server group could fail with "No valid host found" because a previously canceled or failed VM remained in the server group. Vulnerability id: VSTOR-120923 VPN could stop working whe...

CVE-2026-55734

CVE-2026-55734 affects ueberauth Guardian before 2.4.1. The bug is in Guardian.Permissions.encode_permissions!/1 (and related encode_permissions_into_claims!/2/do_encode_permissions!/2) where each key in a supplied map is turned into an atom via String.to_atom(to_string(k)) before validation. If ...

CVE-2026-55734 guardian atom exhaustion in Guardian.Permissions.encode_permissions!/1

Allocation of Resources Without Limits or Throttling vulnerability in ueberauth guardian Guardian.Permissions module allows a denial of service via BEAM atom-table exhaustion. This vulnerability is associated with program file lib/guardian/permissions.ex and program routines...

kernel: KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level

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...

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

A flaw was found in the Kernel-based Virtual Machine KVM for x86. This vulnerability occurs when KVM incorrectly re-checks Level 1 L1 intercepts during the completion of userspace I/O emulation for a Level 2 L2 instruction. If the L1 or host userspace modifies I/O interception settings during thi...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 shadow paging mechanism. This vulnerability occurs when a host page directory entry PDE mapping is changed from within the guest, leading to an unexpected role mismatch in shadow paging. This mismatch can cause a...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine x86 shadow paging mechanism. This use-after-free vulnerability arises from incorrect handling of Guest Frame Numbers GFNs when guest page tables are modified. A local attacker with control over a guest virtual machine could...

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

A flaw was found in the Kernel-based Virtual Machine KVM for x86. This vulnerability occurs when KVM incorrectly re-checks Level 1 L1 intercepts during the completion of userspace I/O emulation for a Level 2 L2 instruction. If the L1 or host userspace modifies I/O interception settings during thi...

AlmaLinux 9 : qemu-kvm (ALSA-2026:39311)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:39311 advisory. qemu-kvm: Heap buffer overflow in virtio-blk SCSI request handling CVE-2026-48914 Tenable has extracted the preceding description block directly from the AlmaLinu...

Debian dsa-6407 : golang-github-lxc-incus-dev - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6407 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6407-1 [email protected] https://www.debian.org/securit...

SUSE CVE-2026-46403

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes ExecuteReadOnlyWithTypedArguments as a read-only execution mechanism. The hook saves the previous read-only state, sets runtime.SetReadOnlytrue, executes the destination context, and then restores t...

SUSE CVE-2026-55737

Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binarytoterm/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGETUPLEEXT term, the...

CVE-2026-41703

CVE-2026-41703 is an out-of-bounds read vulnerability affecting VMware ESX, Workstation, and Fusion. A malicious actor with VM deployment privileges could trigger memory access violations, potentially leading to information disclosure or, more likely, a DoS on the host process; in Workstation and...

CVE-2022-4994

CVE-2022-4994 concerns a Linux kernel KVM/x86 issue where the fast IN path for in-kernel PIO was adjusted. The change routes fast PIO through __emulator_pio_in() directly instead of bouncing via emulator_pio_in(), since __emulator_pio_in() now fills the required value and vcpu->arch.pio.count ...

CVE-2022-4994

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: wean fast IN from emulatorpioin Use emulatorpioin directly for fast PIO instead of bouncing through emulatorpioin now that emulatorpioin fills "val" when handling in-kernel PIO. vcpu-arch.pio.count is guaranteed to be...

CVE-2026-64513

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for x86 architectures. When the apicupdateppr function does not find a deliverable interrupt, it fails to recompute the CR8 intercept, leading to a stale Task Priority Register Threshold TPRTHRESHOLD. This issue can cause a...

CVE-2026-64286

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for arm64 architecture. The flushhypvcpu function, responsible for copying the host virtual CPU vCPU context, does not properly clear a specific internal pointer hyprunningvcpu. This oversight allows a host to provide a value...

PT-2026-66444

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the KVM x86 module where the emulator pio in function was used as a bounce for fast PIO. The fix involves using emulator pio in directly for fast PIO, as emulator pio ...

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-2026-64284

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for x86 systems. This vulnerability occurs when KVM handles fastpath exits, where it may fail to execute vendor-specific cleanup operations before returning control to the virtual machine's userspace. Consequently, memory...