CVE-2026-23087 scsi: xen: scsiback: Fix potential memory leak in scsiback_remove()

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsibackremove Memory allocated for struct vscsiblkinfo in scsibackprobe is not freed in scsibackremove leading to potential memory leaks on remove, as well as in the scsibackprob...

CVE-2026-23087

CVE-2026-23087 affects the Linux kernel in the Xen-scsi scsiback subsystem. The root cause is a memory leak: memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove(), including error paths during probe. The approved patch frees this allocation in scsiback_re...

CVE-2026-23087 scsi: xen: scsiback: Fix potential memory leak in scsiback_remove()

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsibackremove Memory allocated for struct vscsiblkinfo in scsibackprobe is not freed in scsibackremove leading to potential memory leaks on remove, as well as in the scsibackprob...

[SECURITY] Fedora 43 Update: xen-4.20.2-3.fc43

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

Fedora: Security Advisory (FEDORA-2026-844012d662)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

ROS-20260203-73-0004

A vulnerability in the xen-netfront.c component of the Linux operating system kernel is related to pointer dereferencing errors. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

SUSE-SU-2026:20564-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's-nocbcbkthread pointer bsc1254408. - CVE-2025-39880: ceph: fix race condition validating rparent before applying state...

SUSE-SU-2026:20228-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's-nocbcbkthread pointer bsc1254408. - CVE-2025-39880: ceph: fix race condition validating rparent before applying state...

xen-4.21.0_04-1.1 on GA media (moderate)

xen-4.21.004-1.1 on GA media Announcement ID: openSUSE-SU-2026:10118-1 Rating: moderate Cross-References: CVE-2025-58150 CVE-2026-23553 CVSS scores: CVE-2025-58150 SUSE : 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVE-2025-58150 SUSE : 4.8...

Updated xen packages fix security vulnerabilities

x86: buffer overrun with shadow paging + tracing. CVE-2025-58150 x86: incomplete IBPB for vCPU isolation. CVE-2026-23553...

MGASA-2026-0026 Updated xen packages fix security vulnerabilities

x86: buffer overrun with shadow paging + tracing. CVE-2025-58150 x86: incomplete IBPB for vCPU isolation. CVE-2026-23553...

SUSE SLED15: xen / xen-devel / xen-libs / xen-tools / xen-tools-domU / etc (SUSE-SU-2026:0329-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0329-1 advisory. - CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 - CVE-2026-23553: Fix...

Mageia: Security Advisory (MGASA-2026-0026)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE SLES12: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2026:0328-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0328-1 advisory. Security fixes: - CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing XSA-477 bsc1256745 - CVE-2026-23553: Fixed incomplete IBP...

OPENSUSE-SU-2026:10118-1 xen-4.21.0_04-1.1 on GA media

These are all security issues fixed in the xen-4.21.004-1.1 package on the GA media of openSUSE Tumbleweed...

openSUSE Security Advisory (SUSE-SU-2026:0306-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2026-23553

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...

ALPINE-CVE-2026-23553

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...

CVE-2026-23553

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...

UBUNTU-CVE-2026-23553

In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Consider: 1 vCPU runs on CPU A, running task ...