Vulnerability-Lookup

GHSA-6FVX-97P6-HW44

Vulnerability from github – Published: 2024-07-30 09:32 – Updated: 2026-07-24 15:31

Details

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

bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX

Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator.

This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection.

Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42132"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-763"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-30T08:15:05Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX\n\nSyzbot hit warning in hci_conn_del() caused by freeing handle that was\nnot allocated using ida allocator.\n\nThis is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by\nhci_le_big_sync_established_evt(), which makes code think it\u0027s unset\nconnection.\n\nAdd same check for handle upper bound as in hci_conn_set_handle() to\nprevent warning.",
  "id": "GHSA-6fvx-97p6-hw44",
  "modified": "2026-07-24T15:31:45Z",
  "published": "2024-07-30T09:32:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42132"
    },
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      "url": "https://git.kernel.org/stable/c/1cc18c2ab2e8c54c355ea7c0423a636e415a0c23"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ae8d7742a09c275872e670c53337b3dcedaa11c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4970e48f83dbd21d2a6a7cdaaafc2a71f7f45dc4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d311036696fed778301d08a71a4bef737b86d8c5"
    }
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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:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42132 (GCVE-0-2024-42132)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2026-08-05 11:35

Title

bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX

Summary

In the Linux kernel, the following vulnerability has been resolved: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator. This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection. Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.

Severity

7.6 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:16 UTC

Assigner

Linux mitre root Scorecard

References

4 references

URL	Tags
https://git.kernel.org/stable/c/2ae8d7742a09c2758…
https://git.kernel.org/stable/c/4970e48f83dbd21d2…
https://git.kernel.org/stable/c/d311036696fed7783…
https://git.kernel.org/stable/c/1cc18c2ab2e8c54c3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f7e83f2278f06b577e3c92ea2f4e8e8c6fc72a8f , < 2ae8d7742a09c275872e670c53337b3dcedaa11c (git) Affected: 84cb0143fb8a03bf941c7aaedd56c938c99dafad , < 4970e48f83dbd21d2a6a7cdaaafc2a71f7f45dc4 (git) Affected: 181a42edddf51d5d9697ecdf365d72ebeab5afb0 , < d311036696fed778301d08a71a4bef737b86d8c5 (git) Affected: 181a42edddf51d5d9697ecdf365d72ebeab5afb0 , < 1cc18c2ab2e8c54c355ea7c0423a636e415a0c23 (git) Affected: e9f708beada55426c8d678e2f46af659eb5bf4f0 (git) Affected: 6.6.2 , < 6.6.39 (semver) Affected: 6.5.12 , < 6.6 (semver)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.6.39 , ≤ 6.6.* (semver) Unaffected: 6.9.9 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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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.

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.
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GHSA-6FVX-97P6-HW44

CVE-2024-42132 (GCVE-0-2024-42132)

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