crypto: qat - remove unused character device and IOCTLs
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.
CVE-2026-64529
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-64529
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "071590a44cbc38483fceb1ab943363ec26868e1b",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "1de076f43e64bf65fbe7280a269c70e0e60518df",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "6848a6e39cac44fdb7cb88f0f777df62172d1551",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "b1ea97076bd0a5196290deba172034e480646727",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "b8ebf008696de1ec08c90d51f94d7e40bd448be1",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "de2cc38489b629927910b1aeff69bba7bd5c6f1b",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "3ae49dd04dbb11fb73f17f58a982dba128abe83a",
"versionType": "git"
},
{
"status": "affected",
"version": "d8cba25d2c68992a6e7c1d329b690a9ebe01167d",
"lessThan": "d237230728c567297f2f98b425d63156ab2ed17f",
"versionType": "git"
}
],
"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"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.260",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.211",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.177",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.144",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.95",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.37",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.14",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1.2",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"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"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64529
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41065 · Revision 1
- Added to Heist Feed
- Publisher date