CVE-2024-43888

Published: Aug 26, 2024Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: mm: list_lru: fix UAF for memory cgroup The mem_cgroup_from_slab_obj() is supposed to be called under rcu lock or cgroup_mutex or others which could prevent returned memcg from being freed. Fix it by adding missing rcu read lock. Found by code inspection. [songmuchun@bytedance.com: only grab rcu lock when necessary, per Vlastimil]

Affected (3)

Products: Linux: Linux Kernel

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 6.8 to 6.10.5
Linux Linux Kernel	Version 6.11 rc1
Linux Linux Kernel	Version 6.11 rc2

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://git.kernel.org/stable/c/4589f77c18dd98b65f45617b6d1e95313cf6fcab

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/5161b48712dcd08ec427c450399d4d1483e21dea

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

Timeline

No history available yet.