vulnerability
Red Hat: CVE-2024-26602: kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:S/C:N/I:N/A:C) | Feb 26, 2024 | Mar 13, 2024 | Mar 27, 2026 |
Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
Feb 26, 2024
Added
Mar 13, 2024
Modified
Mar 27, 2026
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.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.