Vulnerability-Lookup

GHSA-8PW9-7GV3-535C

Vulnerability from github – Published: 2025-01-21 15:31 – Updated: 2026-05-12 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

exfat: fix the infinite loop in exfat_readdir()

If the file system is corrupted so that a cluster is linked to itself in the cluster chain, and there is an unused directory entry in the cluster, 'dentry' will not be incremented, causing condition 'dentry < max_dentries' unable to prevent an infinite loop.

This infinite loop causes s_lock not to be released, and other tasks will hang, such as exfat_sync_fs().

This commit stops traversing the cluster chain when there is unused directory entry in the cluster to avoid this infinite loop.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-57940"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-21T13:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix the infinite loop in exfat_readdir()\n\nIf the file system is corrupted so that a cluster is linked to\nitself in the cluster chain, and there is an unused directory\nentry in the cluster, \u0027dentry\u0027 will not be incremented, causing\ncondition \u0027dentry \u003c max_dentries\u0027 unable to prevent an infinite\nloop.\n\nThis infinite loop causes s_lock not to be released, and other\ntasks will hang, such as exfat_sync_fs().\n\nThis commit stops traversing the cluster chain when there is unused\ndirectory entry in the cluster to avoid this infinite loop.",
  "id": "GHSA-8pw9-7gv3-535c",
  "modified": "2026-05-12T15:30:44Z",
  "published": "2025-01-21T15:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57940"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
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    },
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    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31beabd0f47f8c3ed9965ba861c9e5b252d4920a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d8cfbb8723bd3d3222f360227a1cc15227189ca6"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d9ea94f5cd117d56e573696d0045ab3044185a15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dc1d7afceb982e8f666e70a582e6b5aa806de063"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fee873761bd978d077d8c55334b4966ac4cb7b59"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-57940 (GCVE-0-2024-57940)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:18 – Updated: 2026-05-12 12:01

Title

exfat: fix the infinite loop in exfat_readdir()

Summary

In the Linux kernel, the following vulnerability has been resolved: exfat: fix the infinite loop in exfat_readdir() If the file system is corrupted so that a cluster is linked to itself in the cluster chain, and there is an unused directory entry in the cluster, 'dentry' will not be incremented, causing condition 'dentry < max_dentries' unable to prevent an infinite loop. This infinite loop causes s_lock not to be released, and other tasks will hang, such as exfat_sync_fs(). This commit stops traversing the cluster chain when there is unused directory entry in the cluster to avoid this infinite loop.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

10 references

URL	Tags
https://git.kernel.org/stable/c/d8cfbb8723bd3d322…
https://git.kernel.org/stable/c/28c21f0ac5293a4bf…
https://git.kernel.org/stable/c/31beabd0f47f8c3ed…
https://git.kernel.org/stable/c/dc1d7afceb982e8f6…
https://git.kernel.org/stable/c/d9ea94f5cd117d56e…
https://git.kernel.org/stable/c/fee873761bd978d07…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

4 products

Vendor	Product	Version
Linux	Linux	Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < d8cfbb8723bd3d3222f360227a1cc15227189ca6 (git) Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < 28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17 (git) Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < 31beabd0f47f8c3ed9965ba861c9e5b252d4920a (git) Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < dc1d7afceb982e8f666e70a582e6b5aa806de063 (git) Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < d9ea94f5cd117d56e573696d0045ab3044185a15 (git) Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < fee873761bd978d077d8c55334b4966ac4cb7b59 (git)
Linux	Linux	Affected: 5.7 Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.234 , ≤ 5.10.* (semver) Unaffected: 5.15.177 , ≤ 5.15.* (semver) Unaffected: 6.1.125 , ≤ 6.1.* (semver) Unaffected: 6.6.72 , ≤ 6.6.* (semver) Unaffected: 6.12.10 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - BIOS	Affected: 0 , < * (custom)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)

Show details on NVD website

JSON

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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