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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-64529

crypto: qat - remove unused character device and IOCTLs

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 071590a44cbc38483fceb1ab943363ec26868e1baffected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 1de076f43e64bf65fbe7280a269c70e0e60518dfaffected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < a4999664a5ef77bdb0c6e6b935f581ac8ce6b63aaffected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 6848a6e39cac44fdb7cb88f0f777df62172d1551affected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < b1ea97076bd0a5196290deba172034e480646727affected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < b8ebf008696de1ec08c90d51f94d7e40bd448be1affected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < de2cc38489b629927910b1aeff69bba7bd5c6f1baffected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < 3ae49dd04dbb11fb73f17f58a982dba128abe83aaffected
  • d8cba25d2c68992a6e7c1d329b690a9ebe01167d to < d237230728c567297f2f98b425d63156ab2ed17faffected

Linux Linux

Default version status: affected

  • 3.17affected
  • 0 to < 3.17unaffected
  • 5.10.260 to ≤ 5.10.*unaffected
  • 5.15.211 to ≤ 5.15.*unaffected
  • 6.1.177 to ≤ 6.1.*unaffected
  • 6.6.144 to ≤ 6.6.*unaffected
  • 6.12.95 to ≤ 6.12.*unaffected
  • 6.18.37 to ≤ 6.18.*unaffected
  • 7.0.14 to ≤ 7.0.*unaffected
  • 7.1.2 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References