CVE-2023-52940

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

mm: multi-gen LRU: fix crash during cgroup migration

lru_gen_migrate_mm() assumes lru_gen_add_mm() runs prior to itself. This isn't true for the following scenario:

CPU 1 CPU 2

clone() cgroup_can_fork() cgroup_procs_write() cgroup_post_fork() task_lock() lru_gen_migrate_mm() task_unlock() task_lock() lru_gen_add_mm() task_unlock()

And when the above happens, kernel crashes because of linked list corruption (mm_struct->lru_gen.list).

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published: Mar 27, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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