Vulnerability-Lookup

GHSA-C5XM-9R44-7W3J

Vulnerability from github – Published: 2024-10-21 15:32 – Updated: 2025-11-04 00:31

Details

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

padata: use integer wrap around to prevent deadlock on seq_nr overflow

When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next.

To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.

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-2024-47739"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T13:15:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npadata: use integer wrap around to prevent deadlock on seq_nr overflow\n\nWhen submitting more than 2^32 padata objects to padata_do_serial, the\ncurrent sorting implementation incorrectly sorts padata objects with\noverflowed seq_nr, causing them to be placed before existing objects in\nthe reorder list. This leads to a deadlock in the serialization process\nas padata_find_next cannot match padata-\u003eseq_nr and pd-\u003eprocessed\nbecause the padata instance with overflowed seq_nr will be selected\nnext.\n\nTo fix this, we use an unsigned integer wrap around to correctly sort\npadata objects in scenarios with integer overflow.",
  "id": "GHSA-c5xm-9r44-7w3j",
  "modified": "2025-11-04T00:31:38Z",
  "published": "2024-10-21T15:32:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47739"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b8cf11b3ca593a8802a51802cd0c28c38501428"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1bd712de96ad7167fe0d608e706cd60587579f16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/46c4079460f4dcaf445860679558eedef4e1bc91"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72164d5b648951684b1a593996b37a6083c61d7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a22b2812393d93d84358a760c347c21939029a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e279e6c1f012b82628b89e1b9c65dbefa8ca25a"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab205e1c3846326f162180e56825b4ba38ce9c30"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/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"
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  ]
}

CVE-2024-47739 (GCVE-0-2024-47739)

Vulnerability from cvelistv5 – Published: 2024-10-21 12:14 – Updated: 2026-08-05 11:39

Title

padata: use integer wrap around to prevent deadlock on seq_nr overflow

Summary

In the Linux kernel, the following vulnerability has been resolved: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-21 12:59 UTC

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/46c4079460f4dcaf4…
https://git.kernel.org/stable/c/72164d5b648951684…
https://git.kernel.org/stable/c/ab205e1c3846326f1…
https://git.kernel.org/stable/c/1b8cf11b3ca593a88…
https://git.kernel.org/stable/c/9e279e6c1f012b826…
https://git.kernel.org/stable/c/1bd712de96ad7167f…
https://git.kernel.org/stable/c/9a22b2812393d93d8…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 46c4079460f4dcaf445860679558eedef4e1bc91 (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 72164d5b648951684b1a593996b37a6083c61d7d (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < ab205e1c3846326f162180e56825b4ba38ce9c30 (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 1b8cf11b3ca593a8802a51802cd0c28c38501428 (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 9e279e6c1f012b82628b89e1b9c65dbefa8ca25a (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 1bd712de96ad7167fe0d608e706cd60587579f16 (git) Affected: bfde23ce200e6d33291d29b9b8b60cc2f30f0805 , < 9a22b2812393d93d84358a760c347c21939029a6 (git)
Linux	Linux	Affected: 5.4 Unaffected: 0 , < 5.4 (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.54 , ≤ 6.6.* (semver) Unaffected: 6.10.13 , ≤ 6.10.* (semver) Unaffected: 6.11.2 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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                "id": "CVE-2024-47739",
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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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