CVE-2024-26602

MEDIUM

Linux Kernel - Denial of Service via sys_membarrier Hammering

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 5.5
EPSS 0.0032
EPSS Percentile 23.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (26)
linux/Kernel 4.14.0 - 4.19.307linux
linux/Kernel 4.20.0 - 5.4.269linux
linux/Kernel 5.11.0 - 5.15.149linux
linux/Kernel 5.16.0 - 6.1.79linux
linux/Kernel 5.5.0 - 5.10.210linux
linux/Kernel 6.2.0 - 6.6.18linux
linux/Kernel 6.7.0 - 6.7.6linux
Linux/Linux < 4.14
Linux/Linux 22e4ebb975822833b083533035233d128b30e98f - 2441a64070b85c14eecc3728cc87e883f953f265
Linux/Linux 22e4ebb975822833b083533035233d128b30e98f - 24ec7504a08a67247fbe798d1de995208a8c128a
... and 16 more
Published Feb 26, 2024
Tracked Since Feb 18, 2026