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FKIE_CVE-2026-74303

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b8cbcf08de0db62254d1981f83db0f94681ccd9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/809230cc25dde1d6bb00de2a1eeb5f3199402fbe
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a209744230f9ce3d7a7e9a0839944f5cb5fa02a4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d54a5fb7d821b88c7c5569d450af59dafccaf414
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e284bb94ad4512ec0bcd9b91bda99e67c507f7f8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-74303",
  "lastModified": "2026-08-17T06:19:24.487",
  "metrics": {},
  "published": "2026-08-15T06:22:29.930",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6b8cbcf08de0db62254d1981f83db0f94681ccd9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/809230cc25dde1d6bb00de2a1eeb5f3199402fbe"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a209744230f9ce3d7a7e9a0839944f5cb5fa02a4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d54a5fb7d821b88c7c5569d450af59dafccaf414"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e284bb94ad4512ec0bcd9b91bda99e67c507f7f8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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