[Important] [Security] Virtuozzo ReadyKernel patch 146.1 for Virtuozzo Hybrid Server 7.5

Issue date: 2022-08-22

Applies to: Virtuozzo Hybrid Server 7.5

Virtuozzo Advisory ID: VZA-2022-027

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.5.

2. Security Fixes

  • [Important] [3.10.0-1160.21.1.vz7.174.13 to 3.10.0-1160.53.1.vz7.185.3] Calling kfree_skb from hardware interrupt may cause deadlock. (PSBM-141642)

  • [Important] [3.10.0-1160.21.1.vz7.174.13 to 3.10.0-1160.53.1.vz7.185.3] Reading data from partially written XFS file block. (CVE-2021-4155)

  • [Important] [3.10.0-1160.21.1.vz7.174.13 to 3.10.0-1160.53.1.vz7.185.3] Use after free for file descriptor table for vmwgfx. (CVE-2022-22942)

  • [Important] [3.10.0-1160.21.1.vz7.174.13 to 3.10.0-1160.53.1.vz7.185.3] Kernel buffers data leak or race in intel GPU driver. (CVE-2022-0330)

3. Installing the Update

Download, install, and immediately apply the patch to the current kernel by running readykernel update.