CVE-2024-43888
Full vulnerability record from the local CVENow database.
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. [[email protected]: only grab rcu lock when necessary, per Vlastimil]
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2024-08-26 11:15:03.930000
Last modified
2026-10-21 13:17:47.207000
View original CVE JSON
{
"id": "CVE-2024-43888",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-08-26T11:15:03.930",
"lastModified": "2026-10-21T13:17:47.207",
"vulnStatus": "Modified",
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: list_lru: fix UAF for memory cgroup\n\nThe mem_cgroup_from_slab_obj() is supposed to be called under rcu lock or\ncgroup_mutex or others which could prevent returned memcg from being\nfreed. Fix it by adding missing rcu read lock.\n\nFound by code inspection.\n\n[[email protected]: only grab rcu lock when necessary, per Vlastimil]"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: list_lru: corrige UAF para memoria cgroup Se supone que mem_cgroup_from_slab_obj() debe llamarse bajo rcu lock o cgroup_mutex u otros, lo que podría impedir que se libere el memcg devuelto. Solucionarlo agregando el bloqueo de lectura rcu que falta. Encontrado mediante inspección de código. [[email protected]: solo tome el bloqueo rcu cuando sea necesario, según Vlastimil] Enlace: https://lkml.kernel.org/r/[email protected]"
}
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