Kernel update: Virtuozzo ReadyKernel patch 79.0 for Virtuozzo 7.0 Update 10¶
Issue date: 2019-05-16
Applies to: Virtuozzo 7.0
Virtuozzo Advisory ID: VZA-2019-038
The cumulative Virtuozzo ReadyKernel patch was updated with stability fixes. The patch applies to the kernel 3.10.0-957.10.1.vz7.85.17 (Virtuozzo 7.0 Update 10).
2. Bug Fixes¶
It was found that the memcg ID number of a cgroup was released earlier than needed and could be reused by a different cgroup. As a result, certain reference counters could become corrupted, leading to a kernel crash in memcg_css_release_check_kmem(). (PSBM-94269)
Freeing of a memory cgroup took longer than needed in certain cases. (PSBM-94398)
3. Installing the Update¶
Download, install, and immediately apply the patch to the current kernel by running ‘readykernel update’.