Answer in brief
CVE-2026-64529 records a High severity (CVSS 7.8) vulnerability in crypto: qat - remove unused character device and IOCTLs. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <071590a44cbc38483fceb1ab943363ec26868e1b || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <1de076f43e64bf65fbe7280a269c70e0e60518df || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <6848a6e39cac44fdb7cb88f0f777df62172d1551 || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <b1ea97076bd0a5196290deba172034e480646727 || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <b8ebf008696de1ec08c90d51f94d7e40bd448be1 || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <de2cc38489b629927910b1aeff69bba7bd5c6f1b || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <3ae49dd04dbb11fb73f17f58a982dba128abe83a || >=d8cba25d2c68992a6e7c1d329b690a9ebe01167d <d237230728c567297f2f98b425d63156ab2ed17f | 071590a44cbc38483fceb1ab943363ec26868e1b, 1de076f43e64bf65fbe7280a269c70e0e60518df, a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a, 6848a6e39cac44fdb7cb88f0f777df62172d1551, b1ea97076bd0a5196290deba172034e480646727, b8ebf008696de1ec08c90d51f94d7e40bd448be1, de2cc38489b629927910b1aeff69bba7bd5c6f1b, 3ae49dd04dbb11fb73f17f58a982dba128abe83a, d237230728c567297f2f98b425d63156ab2ed17f |
| Linux/Linuxgeneric | 3.17 | Not reported |
Published upstream
Jul 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.