CVE-2024-26602: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 4.14.0, before 4.19.307 (fixed in 4.19.307); from 4.20.0, before 5.4.269 (fixed in 5.4.269); from 5.5.0, before 5.10.210 (fixed in 5.10.210); from 5.11.0, before 5.15.149 (fixed in 5.15.149); from 5.16.0, before 6.1.79 (fixed in 6.1.79); from 6.2.0, before 6.6.18 (fixed in 6.6.18); …

Published 2024-02-26. Last modified 2026-06-17.