{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d"
            },
            {
              "fixed": "071590a44cbc38483fceb1ab943363ec26868e1b"
            },
            {
              "fixed": "1de076f43e64bf65fbe7280a269c70e0e60518df"
            },
            {
              "fixed": "a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a"
            },
            {
              "fixed": "6848a6e39cac44fdb7cb88f0f777df62172d1551"
            },
            {
              "fixed": "b1ea97076bd0a5196290deba172034e480646727"
            },
            {
              "fixed": "b8ebf008696de1ec08c90d51f94d7e40bd448be1"
            },
            {
              "fixed": "de2cc38489b629927910b1aeff69bba7bd5c6f1b"
            },
            {
              "fixed": "3ae49dd04dbb11fb73f17f58a982dba128abe83a"
            },
            {
              "fixed": "d237230728c567297f2f98b425d63156ab2ed17f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.17.0"
            },
            {
              "fixed": "5.10.260"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.211"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.177"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.144"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.95"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.37"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.14"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "7.1.0"
            },
            {
              "fixed": "7.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64529.json"
  },
  "details": "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.",
  "id": "CVE-2026-64529",
  "modified": "2026-07-28T03:56:06.951234153Z",
  "published": "2026-07-25T09:24:18.750Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/071590a44cbc38483fceb1ab943363ec26868e1b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1de076f43e64bf65fbe7280a269c70e0e60518df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ae49dd04dbb11fb73f17f58a982dba128abe83a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6848a6e39cac44fdb7cb88f0f777df62172d1551"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1ea97076bd0a5196290deba172034e480646727"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8ebf008696de1ec08c90d51f94d7e40bd448be1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d237230728c567297f2f98b425d63156ab2ed17f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de2cc38489b629927910b1aeff69bba7bd5c6f1b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64529.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64529"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "crypto: qat - remove unused character device and IOCTLs"
}