Rapid7 Vulnerability & Exploit Database

Red Hat OpenShift: CVE-2024-26602: kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Red Hat OpenShift: CVE-2024-26602: kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/26/2024
Created
05/10/2024
Added
05/10/2024
Modified
05/10/2024

Description

In the Linux kernel, the following vulnerability has been resolved: sched/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

Solution(s)

  • linuxrpm-upgrade-rhcos-aarch64
  • linuxrpm-upgrade-rhcos-ppc64le
  • linuxrpm-upgrade-rhcos-s390x
  • linuxrpm-upgrade-rhcos-x86_64

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;