[Important] [Security] Virtuozzo ReadyKernel patch 144.1 for Virtuozzo Hybrid Server 7.0, 7.5

Issue date: 2022-07-27

Applies to: Virtuozzo Hybrid Server 7.0, Virtuozzo Hybrid Server 7.5

Virtuozzo Advisory ID: VZA-2022-023

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.x. NOTE: No more updates are planned for the kernels 3.10.0-1127.8.2.vz7.158.8 and 3.10.0-1127.18.2.vz7.163.46.

2. Security Fixes

  • [Important] [3.10.0-1127.8.2.vz7.158.8 to 3.10.0-1160.53.1.vz7.185.3] A hole in vstorage FUSE synchronization protocol leading to unsynchronized chunks. (VSTOR-55377)

  • [Important] [3.10.0-1127.8.2.vz7.158.8 to 3.10.0-1160.53.1.vz7.185.3] ms/xfrm: fix crash in XFRM_MSG_GETSA netlink handler (PSBM-141136)

3. Installing the Update

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