Vulnerability-Lookup

GHSA-3QVF-QW9P-G662

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

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

Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device

hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev) and dereferences the result, causing a NULL pointer dereference.

Fix by guarding the dereference with a NULL check, consistent with the rest of qca_setup().

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74304"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:30Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device\n\nhu-\u003eserdev is NULL for hci_uart attached via non-serdev paths, but\nqca_setup() unconditionally calls serdev_device_get_drvdata(hu-\u003eserdev)\nand dereferences the result, causing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check, consistent with the\nrest of qca_setup().",
  "id": "GHSA-3qvf-qw9p-g662",
  "modified": "2026-08-15T06:32:28Z",
  "published": "2026-08-15T06:32:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74304"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0704c04769ccc1a0939682db35d816dfa5fe75dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ec629fee178d429f01ae843e4ea888de93012bf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74304 (GCVE-0-2026-74304)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:16

Title

Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_setup() unconditionally calls serdev_device_get_drvdata(hu->serdev) and dereferences the result, causing a NULL pointer dereference. Fix by guarding the dereference with a NULL check, consistent with the rest of qca_setup().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/0704c04769ccc1a09…
https://git.kernel.org/stable/c/3ec629fee178d429f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 22d893eec0d52fa97d25d3de248285648f26ef68 , < 0704c04769ccc1a0939682db35d816dfa5fe75dc (git) Affected: 22d893eec0d52fa97d25d3de248285648f26ef68 , < 3ec629fee178d429f01ae843e4ea888de93012bf (git)
Linux	Linux	Affected: 7.0 Unaffected: 0 , < 7.0 (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_qca.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0704c04769ccc1a0939682db35d816dfa5fe75dc",
              "status": "affected",
              "version": "22d893eec0d52fa97d25d3de248285648f26ef68",
              "versionType": "git"
            },
            {
              "lessThan": "3ec629fee178d429f01ae843e4ea888de93012bf",
              "status": "affected",
              "version": "22d893eec0d52fa97d25d3de248285648f26ef68",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/bluetooth/hci_qca.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.0"
            },
            {
              "lessThan": "7.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device\n\nhu-\u003eserdev is NULL for hci_uart attached via non-serdev paths, but\nqca_setup() unconditionally calls serdev_device_get_drvdata(hu-\u003eserdev)\nand dereferences the result, causing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check, consistent with the\nrest of qca_setup()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:16:51.786Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0704c04769ccc1a0939682db35d816dfa5fe75dc"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ec629fee178d429f01ae843e4ea888de93012bf"
        }
      ],
      "title": "Bluetooth: hci_qca: fix NULL pointer dereference in qca_setup() for non-serdev device",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74304",
    "datePublished": "2026-08-15T05:58:05.981Z",
    "dateReserved": "2026-08-15T05:44:03.882Z",
    "dateUpdated": "2026-08-17T05:16:51.786Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-3QVF-QW9P-G662

CVE-2026-74304 (GCVE-0-2026-74304)

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Sightings

Nomenclature