Virtuozzo ReadyKernel patch 137.1 for Virtuozzo Hybrid Server 7.0, 7.5

Issue date: 2021-12-16

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

Virtuozzo Advisory ID: VZA-2021-060

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.

2. Bug Fixes

  • [3.10.0-1127.8.2.vz7.151.14 to 3.10.0-1160.41.1.vz7.183.5] fs/locks.c: Node crash BUG in locks_insert_block(). (PSBM-136295)

  • [3.10.0-1127.8.2.vz7.151.14 to 3.10.0-1160.41.1.vz7.183.5] fs: potential kernel crash in inode_permission() when processing paths containing ‘..’. (PSBM-136369)

  • [3.10.0-1127.8.2.vz7.151.14 to 3.10.0-1160.41.1.vz7.183.5] Potential memory corruption in nfsd4_lock(). (PSBM-136851)

3. Installing the Update

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