{"cve":"CVE-2026-74574","nvd":{"published":"2026-08-15T13:18:03.063","modified":"2026-10-16T20:17:38.923","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open()\n\nThe failed_dev_add and failed_dev_name paths drop the file-device\nreference while wq->wq_lock is still held. If put_device(fdev) drops the\nlast reference, idxd_file_dev_release() runs synchronously and tries to\ntake wq->wq_lock again, deadlocking.\n\nThose paths also fall through into the later ctx cleanup labels even\nthough idxd_file_dev_release() owns that cleanup and frees ctx. This can\nmake idxd_xa_pasid_remove(ctx) and kfree(ctx) operate on a freed context.\n\nMove idxd_wq_get() before file-device setup can fail, since the release\ncallback always calls idxd_wq_put(). Then unlock wq->wq_lock before\nput_device(fdev) and return directly from the file-device setup failure\npath, leaving ctx cleanup to the release callback.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":[],"references":["https://git.kernel.org/stable/c/0679c0c189d2548f00e1bac95be28e2df5c6c7f7","https://git.kernel.org/stable/c/6e26a41c4c1a706edaaa7c7dffc6b3b945707a55","https://git.kernel.org/stable/c/778ccbded2c8749c5be7f0dfa04fc9977a36fb7e","https://git.kernel.org/stable/c/8d5d28285728be47c82fdf1c48be4268293c90e7","https://git.kernel.org/stable/c/ee1d7274102285d78a53161fc705a8d8cd40b066"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:10.689564601+00:00"},"epss":{"cve":"CVE-2026-74574","score":0.00122,"percentile":0.01983,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}