Vulnerability-Lookup

GHSA-WM87-X2VW-R6CH

Vulnerability from github – Published: 2024-08-26 12:31 – Updated: 2024-08-27 15:32

Details

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] Link: https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-43888"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-26T11:15:03Z",
    "severity": "HIGH"
  },
  "details": "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]\n  Link: https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com",
  "id": "GHSA-wm87-x2vw-r6ch",
  "modified": "2024-08-27T15:32:43Z",
  "published": "2024-08-26T12:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43888"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4589f77c18dd98b65f45617b6d1e95313cf6fcab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5161b48712dcd08ec427c450399d4d1483e21dea"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-43888 (GCVE-0-2024-43888)

Vulnerability from cvelistv5 – Published: 2024-08-26 10:10 – Updated: 2026-05-11 20:31

Title

mm: list_lru: fix UAF for memory cgroup

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]

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/4589f77c18dd98b65…
https://git.kernel.org/stable/c/5161b48712dcd08ec…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0a97c01cd20bb96359d8c9dedad92a061ed34e0b , < 4589f77c18dd98b65f45617b6d1e95313cf6fcab (git) Affected: 0a97c01cd20bb96359d8c9dedad92a061ed34e0b , < 5161b48712dcd08ec427c450399d4d1483e21dea (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.10.5 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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JSON

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  "containers": {
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      {
        "metrics": [
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                "id": "CVE-2024-43888",
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:31:59.160632Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-WM87-X2VW-R6CH

CVE-2024-43888 (GCVE-0-2024-43888)

Tags

Sightings

Nomenclature