{"cve":"CVE-2026-74313","nvd":{"published":"2026-08-15T06:22:31.460","modified":"2026-10-16T19:17:38.677","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: hold vduse_lock across IDR lookup in open path\n\nvduse_dev_open() looks up struct vduse_dev through the IDR and then\nacquires dev->lock only after vduse_lock has been dropped.\n\nThis leaves a window where a concurrent VDUSE_DESTROY_DEV can remove the\nsame object from the IDR and free it before the open path locks the\ndevice, leading to a use-after-free.\n\nClose this race by keeping vduse_lock held until dev->lock has been\nacquired in the open path, matching the lock ordering already used by\nthe destroy path.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["https://git.kernel.org/stable/c/35483c5306e09b3190ff937089d404a78012695c","https://git.kernel.org/stable/c/5c1560be8aa6849356455af67518d35c551cbd95","https://git.kernel.org/stable/c/79e12c891940b0c4c75881b7fd82a8cbb8ac97be","https://git.kernel.org/stable/c/93ed4692f2299a40346025979f40e4a9b7b33af7","https://git.kernel.org/stable/c/a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-74313","score":0.00126,"percentile":0.0223,"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."]}