{"id":"CVE-2026-64529","revision":"39bd0e9dcd544bd080835bf42c1cdec7","records":[{"revision":"39bd0e9dcd544bd080835bf42c1cdec7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64529","aliases":[],"title":"crypto: qat - remove unused character device and IOCTLs","description":"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.","state":0,"publishedAt":"2026-07-25T09:24:18.75+00:00","modifiedAt":"2026-10-19T20:48:38.158+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"Documentation/userspace-api/ioctl/ioctl-number.rst\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg.c\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg_common.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg_user.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_common_drv.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_dev_mgr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"071590a44cbc38483fceb1ab943363ec26868e1b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"1de076f43e64bf65fbe7280a269c70e0e60518df\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"6848a6e39cac44fdb7cb88f0f777df62172d1551\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"b1ea97076bd0a5196290deba172034e480646727\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"b8ebf008696de1ec08c90d51f94d7e40bd448be1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"de2cc38489b629927910b1aeff69bba7bd5c6f1b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"3ae49dd04dbb11fb73f17f58a982dba128abe83a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d8cba25d2c68992a6e7c1d329b690a9ebe01167d\",\n                            \"lessThan\": \"d237230728c567297f2f98b425d63156ab2ed17f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"Documentation/userspace-api/ioctl/ioctl-number.rst\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg.c\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg_common.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_cfg_user.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_common_drv.h\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_ctl_drv.c\",\n                        \"drivers/crypto/intel/qat/qat_common/adf_dev_mgr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.260\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.211\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.177\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.144\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.95\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.37\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.14\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.2\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/071590a44cbc38483fceb1ab943363ec26868e1b","https://git.kernel.org/stable/c/1de076f43e64bf65fbe7280a269c70e0e60518df","https://git.kernel.org/stable/c/a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a","https://git.kernel.org/stable/c/6848a6e39cac44fdb7cb88f0f777df62172d1551","https://git.kernel.org/stable/c/b1ea97076bd0a5196290deba172034e480646727","https://git.kernel.org/stable/c/b8ebf008696de1ec08c90d51f94d7e40bd448be1","https://git.kernel.org/stable/c/de2cc38489b629927910b1aeff69bba7bd5c6f1b","https://git.kernel.org/stable/c/3ae49dd04dbb11fb73f17f58a982dba128abe83a","https://git.kernel.org/stable/c/d237230728c567297f2f98b425d63156ab2ed17f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64529","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64529","identifiers":["CVE-2026-64529"]},"retained":false,"historicalAffected":[]}],"coverage":[]}