FKIE_CVE-2026-64529

Vulnerability from fkie_nvd - Published: 2026-07-25 10:17 - Updated: 2026-10-24 13:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused character device and IOCTLs The QAT driver exposes a character device (qat_adf_ctl) with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public uAPI header and have no known in-tree or out-of-tree users. Device lifecycle is already managed via sysfs. The ioctl interface also increases the attack surface and is the subject of a number of bug reports. Remove the character device, the IOCTL definitions, and the related data structures (adf_dev_status_info, adf_user_cfg_key_val, adf_user_cfg_section, adf_user_cfg_ctl_data). Drop the now-unused adf_cfg_user.h header and strip adf_ctl_drv.c down to the minimal module_init/module_exit hooks for workqueue, AER, and crypto/compression algorithm registration. Clean up leftover dead code that was only reachable from the removed IOCTL paths: adf_cfg_del_all(), adf_devmgr_verify_id(), adf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(), adf_get_vf_real_id() and the unused ADF_CFG macros. Additionally, drop the entry associated to QAT IOCTLs in ioctl-number.rst.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/071590a44cbc38483fceb1ab943363ec26868e1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1de076f43e64bf65fbe7280a269c70e0e60518df
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ae49dd04dbb11fb73f17f58a982dba128abe83a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6848a6e39cac44fdb7cb88f0f777df62172d1551
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1ea97076bd0a5196290deba172034e480646727
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8ebf008696de1ec08c90d51f94d7e40bd448be1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d237230728c567297f2f98b425d63156ab2ed17f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de2cc38489b629927910b1aeff69bba7bd5c6f1b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "Documentation/userspace-api/ioctl/ioctl-number.rst",
            "drivers/crypto/intel/qat/qat_common/adf_cfg.c",
            "drivers/crypto/intel/qat/qat_common/adf_cfg.h",
            "drivers/crypto/intel/qat/qat_common/adf_cfg_common.h",
            "drivers/crypto/intel/qat/qat_common/adf_cfg_user.h",
            "drivers/crypto/intel/qat/qat_common/adf_common_drv.h",
            "drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c",
            "drivers/crypto/intel/qat/qat_common/adf_dev_mgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "071590a44cbc38483fceb1ab943363ec26868e1b",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "1de076f43e64bf65fbe7280a269c70e0e60518df",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "6848a6e39cac44fdb7cb88f0f777df62172d1551",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "b1ea97076bd0a5196290deba172034e480646727",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "b8ebf008696de1ec08c90d51f94d7e40bd448be1",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "de2cc38489b629927910b1aeff69bba7bd5c6f1b",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "3ae49dd04dbb11fb73f17f58a982dba128abe83a",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            },
            {
              "lessThan": "d237230728c567297f2f98b425d63156ab2ed17f",
              "status": "affected",
              "version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "Documentation/userspace-api/ioctl/ioctl-number.rst",
            "drivers/crypto/intel/qat/qat_common/adf_cfg.c",
            "drivers/crypto/intel/qat/qat_common/adf_cfg.h",
            "drivers/crypto/intel/qat/qat_common/adf_cfg_common.h",
            "drivers/crypto/intel/qat/qat_common/adf_cfg_user.h",
            "drivers/crypto/intel/qat/qat_common/adf_common_drv.h",
            "drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c",
            "drivers/crypto/intel/qat/qat_common/adf_dev_mgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "lessThan": "3.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.260",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.211",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.177",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.144",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.95",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.2",
              "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\ncrypto: qat - remove unused character device and IOCTLs\n\nThe QAT driver exposes a character device (qat_adf_ctl) with IOCTLs\nfor device configuration, start, stop, status query and enumeration.\nThese IOCTLs are not part of any public uAPI header and have no known\nin-tree or out-of-tree users. Device lifecycle is already managed via\nsysfs.\n\nThe ioctl interface also increases the attack surface and is the\nsubject of a number of bug reports.\n\nRemove the character device, the IOCTL definitions, and the related\ndata structures (adf_dev_status_info, adf_user_cfg_key_val,\nadf_user_cfg_section, adf_user_cfg_ctl_data). Drop the now-unused\nadf_cfg_user.h header and strip adf_ctl_drv.c down to the minimal\nmodule_init/module_exit hooks for workqueue, AER, and crypto/compression\nalgorithm registration.\n\nClean up leftover dead code that was only reachable from the removed\nIOCTL paths: adf_cfg_del_all(), adf_devmgr_verify_id(),\nadf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(),\nadf_get_vf_real_id() and the unused ADF_CFG macros.\n\nAdditionally, drop the entry associated to QAT IOCTLs in\nioctl-number.rst."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncrypto: qat - eliminar dispositivo de caracteres y IOCTLs no utilizados\n\nEl controlador QAT expone un dispositivo de caracteres (qat_adf_ctl) con IOCTLs para configuraci\u00f3n de dispositivo, inicio, detenci\u00f3n, consulta de estado y enumeraci\u00f3n. Estos IOCTLs no forman parte de ning\u00fan encabezado uAPI p\u00fablico y no tienen usuarios conocidos dentro o fuera del \u00e1rbol. El ciclo de vida del dispositivo ya se gestiona a trav\u00e9s de sysfs.\n\nLa interfaz ioctl tambi\u00e9n aumenta la superficie de ataque y es objeto de varios informes de errores.\n\nEliminar el dispositivo de caracteres, las definiciones de IOCTL y las estructuras de datos relacionadas (adf_dev_status_info, adf_user_cfg_key_val, adf_user_cfg_section, adf_user_cfg_ctl_data). Eliminar el encabezado adf_cfg_user.h ahora no utilizado y reducir adf_ctl_drv.c a los ganchos m\u00ednimos module_init/module_exit para el registro de workqueue, AER y algoritmos de criptograf\u00eda/compresi\u00f3n.\n\nLimpiar el c\u00f3digo muerto restante que solo era accesible desde las rutas de IOCTL eliminadas: adf_cfg_del_all(), adf_devmgr_verify_id(), adf_devmgr_get_num_dev(), adf_devmgr_get_dev_by_id(), adf_get_vf_real_id() y las macros ADF_CFG no utilizadas.\n\nAdem\u00e1s, eliminar la entrada asociada a los IOCTLs de QAT en ioctl-number.rst."
    }
  ],
  "id": "CVE-2026-64529",
  "lastModified": "2026-10-24T13:10:00.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-64529",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-16T15:41:41.952211Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-25T10:17:39.317",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/071590a44cbc38483fceb1ab943363ec26868e1b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1de076f43e64bf65fbe7280a269c70e0e60518df"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ae49dd04dbb11fb73f17f58a982dba128abe83a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6848a6e39cac44fdb7cb88f0f777df62172d1551"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1ea97076bd0a5196290deba172034e480646727"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b8ebf008696de1ec08c90d51f94d7e40bd448be1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d237230728c567297f2f98b425d63156ab2ed17f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/de2cc38489b629927910b1aeff69bba7bd5c6f1b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-489"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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