Kernel update: Virtuozzo ReadyKernel patch 119.5 for Virtuozzo Hybrid Server 7.0 and Virtuozzo Hybrid Infrastructure 4.0

Issue date: 2020-12-01

Applies to: Virtuozzo Hybrid Infrastructure 4.0, Virtuozzo Hybrid Server 7.0

Virtuozzo Advisory ID: VZA-2020-068

1. Overview

The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernels 3.10.0-1127.8.2.vz7.151.14 (Virtuozzo Hybrid Server 7.0.14), 3.10.0-1127.8.2.vz7.158.8 (Virtuozzo Hybrid Infrastructure 4.0).

2. Bug Fixes

  • [3.10.0-1127.8.2.vz7.151.14 to 3.10.0-1127.8.2.vz7.158.8] ploop: certain operations with large ploop images could lead to a division by zero in __map_extent_bmap(). (PSBM-122035)

  • [3.10.0-1127.8.2.vz7.151.14 to 3.10.0-1127.8.2.vz7.158.8] Kernel crash due to an incorrect BUG_ON() assertion in move_freepages(). (PSBM-123085)

3. Installing the Update

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