Vulnerability-Lookup

GHSA-C62V-FHPJ-C23C

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_dmp_hdr() for non-serdev device

hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_dmp_hdr() unconditionally dereferences hu->serdev->dev.driver->name, causing a NULL pointer dereference.

Fix by guarding the dereference with a NULL check and falling back to "hci_ldisc_qca" for the non-serdev case.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-74303"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device\n\nhu-\u003eserdev is NULL for hci_uart attached via non-serdev paths, but\nqca_dmp_hdr() unconditionally dereferences hu-\u003eserdev-\u003edev.driver-\u003ename,\ncausing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check and falling back to\n\"hci_ldisc_qca\" for the non-serdev case.",
  "id": "GHSA-c62v-fhpj-c23c",
  "modified": "2026-08-15T06:32:29Z",
  "published": "2026-08-15T06:32:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74303"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b8cbcf08de0db62254d1981f83db0f94681ccd9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/809230cc25dde1d6bb00de2a1eeb5f3199402fbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a209744230f9ce3d7a7e9a0839944f5cb5fa02a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d54a5fb7d821b88c7c5569d450af59dafccaf414"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e284bb94ad4512ec0bcd9b91bda99e67c507f7f8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-74303 (GCVE-0-2026-74303)

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_dmp_hdr() for non-serdev device

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device hu->serdev is NULL for hci_uart attached via non-serdev paths, but qca_dmp_hdr() unconditionally dereferences hu->serdev->dev.driver->name, causing a NULL pointer dereference. Fix by guarding the dereference with a NULL check and falling back to "hci_ldisc_qca" for the non-serdev case.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/809230cc25dde1d6b…
https://git.kernel.org/stable/c/a209744230f9ce3d7…
https://git.kernel.org/stable/c/e284bb94ad4512ec0…
https://git.kernel.org/stable/c/d54a5fb7d821b88c7…
https://git.kernel.org/stable/c/6b8cbcf08de0db622…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < 809230cc25dde1d6bb00de2a1eeb5f3199402fbe (git) Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < a209744230f9ce3d7a7e9a0839944f5cb5fa02a4 (git) Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < e284bb94ad4512ec0bcd9b91bda99e67c507f7f8 (git) Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < d54a5fb7d821b88c7c5569d450af59dafccaf414 (git) Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < 6b8cbcf08de0db62254d1981f83db0f94681ccd9 (git)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "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": "809230cc25dde1d6bb00de2a1eeb5f3199402fbe",
              "status": "affected",
              "version": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf",
              "versionType": "git"
            },
            {
              "lessThan": "a209744230f9ce3d7a7e9a0839944f5cb5fa02a4",
              "status": "affected",
              "version": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf",
              "versionType": "git"
            },
            {
              "lessThan": "e284bb94ad4512ec0bcd9b91bda99e67c507f7f8",
              "status": "affected",
              "version": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf",
              "versionType": "git"
            },
            {
              "lessThan": "d54a5fb7d821b88c7c5569d450af59dafccaf414",
              "status": "affected",
              "version": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf",
              "versionType": "git"
            },
            {
              "lessThan": "6b8cbcf08de0db62254d1981f83db0f94681ccd9",
              "status": "affected",
              "version": "06d3fdfcdf5cefb06f2024b9d3dad356779399cf",
              "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": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "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": "6.6.145",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.6",
                  "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_dmp_hdr() for non-serdev device\n\nhu-\u003eserdev is NULL for hci_uart attached via non-serdev paths, but\nqca_dmp_hdr() unconditionally dereferences hu-\u003eserdev-\u003edev.driver-\u003ename,\ncausing a NULL pointer dereference.\n\nFix by guarding the dereference with a NULL check and falling back to\n\"hci_ldisc_qca\" for the non-serdev case."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:16:50.701Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/809230cc25dde1d6bb00de2a1eeb5f3199402fbe"
        },
        {
          "url": "https://git.kernel.org/stable/c/a209744230f9ce3d7a7e9a0839944f5cb5fa02a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/e284bb94ad4512ec0bcd9b91bda99e67c507f7f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/d54a5fb7d821b88c7c5569d450af59dafccaf414"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b8cbcf08de0db62254d1981f83db0f94681ccd9"
        }
      ],
      "title": "Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74303",
    "datePublished": "2026-08-15T05:58:05.321Z",
    "dateReserved": "2026-08-15T05:44:03.882Z",
    "dateUpdated": "2026-08-17T05:16:50.701Z",
    "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-C62V-FHPJ-C23C

CVE-2026-74303 (GCVE-0-2026-74303)

Tags

Sightings

Nomenclature