Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel through version 5.10.1, as used with Xen up to version 4.14.x. The Linux kernel’s PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when the thread is stopped. However, the handler may not have enough time to execute if the...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414666)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414666 advisory. An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2022-2054)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2022 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...

EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1292)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database aka dbx protection mechanism. This affect...

SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0438-1)

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2021-3348: Fixed a use-after-free in nbdaddsocket that could be triggered by local attackers with access to the nbd device via an I/O request at a certain point...

openSUSE Security Update : the Linux Kernel (openSUSE-2021-75)

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2020-29568: An issue was discovered in Xen through 4.14.x. Some OSes such as Linux, FreeBSD, and NetBSD are processing watch events using a single thread. If the even...

CVE-2020-29569

An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the...

DEBIAN-CVE-2020-29569

An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the...

UBUNTU-CVE-2020-29569

An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the...

CVE-2020-29569

An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the...

CVE-2020-29569

CVE-2020-29569 describes a use-after-free in the Linux kernel PV block backend (blkback) when Xen is used, where the kernel thread handler may not reset ring->xenblkd to NULL if the frontend toggles between connect/disconnect, allowing a misbehaving guest to trigger a dom0 crash. The issue aff...

Use after free triggered by block frontend in Linux blkback

ISSUE DESCRIPTION The Linux kernel PV block backend expects the kernel thread handler to reset ring-xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggle between the states connect and disconnect. As a consequence, the block backend may re-use ...