What’s Vulnerable › Vulnerabilities

CVE-2024-43888: mm: list_lru: fix UAF for memory cgroup

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-26 · updated 2026-10-21
• Weakness: CWE-416

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 products

• Linux kernel: from 6.8 before 6.10.5; 6.11-rc1, 6.11-rc2 — fixed in 6.10.5

How to fix

Upgrade to a fixed version: Linux kernel 6.10.5. Check the vendor advisory for mitigations.

References

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

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