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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:16
VLAI
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
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < 809230cc25dde1d6bb00de2a1eeb5f3199402fbe (git)
Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < a209744230f9ce3d7a7e9a0839944f5cb5fa02a4 (git)
Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < e284bb94ad4512ec0bcd9b91bda99e67c507f7f8 (git)
Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < d54a5fb7d821b88c7c5569d450af59dafccaf414 (git)
Affected: 06d3fdfcdf5cefb06f2024b9d3dad356779399cf , < 6b8cbcf08de0db62254d1981f83db0f94681ccd9 (git)
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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)
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{
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        {
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      "title": "Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device",
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    "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"
  },
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-20T16:22:40+00:00",
      "cve": "CVE-2026-74303",
      "id": "CVE-2026-74303",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: hci_qca: fix NULL pointer dereference in qca_dmp_hdr() for non-serdev device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74303.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.