FKIE_CVE-2024-43888

Vulnerability from fkie_nvd - Published: 2024-08-26 11:15 - Updated: 2025-04-16 19:15
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4589f77c18dd98b65f45617b6d1e95313cf6fcabPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5161b48712dcd08ec427c450399d4d1483e21deaPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "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[songmuchun@bytedance.com: 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 podr\u00eda impedir que se libere el memcg devuelto. Solucionarlo agregando el bloqueo de lectura rcu que falta. Encontrado mediante inspecci\u00f3n de c\u00f3digo. [songmuchun@bytedance.com: solo tome el bloqueo rcu cuando sea necesario, seg\u00fan Vlastimil] Enlace: https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com"
    }
  ],
  "id": "CVE-2024-43888",
  "lastModified": "2025-04-16T19:15:51.573",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-08-26T11:15:03.930",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-416"
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      "source": "nvd@nist.gov",
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}


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