{"cve":"CVE-2025-39861","nvd":{"published":"2025-09-19T16:15:45.100","modified":"2026-10-19T21:10:00.160","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: vhci: Prevent use-after-free by removing debugfs files early\n\nMove the creation of debugfs files into a dedicated function, and ensure\nthey are explicitly removed during vhci_release(), before associated\ndata structures are freed.\n\nPreviously, debugfs files such as \"force_suspend\", \"force_wakeup\", and\nothers were created under hdev->debugfs but not removed in\nvhci_release(). Since vhci_release() frees the backing vhci_data\nstructure, any access to these files after release would result in\nuse-after-free errors.\n\nAlthough hdev->debugfs is later freed in hci_release_dev(), user can\naccess files after vhci_data is freed but before hdev->debugfs is\nreleased.","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":["CWE-416"],"references":["https://git.kernel.org/stable/c/1503756fffe76d5aea2371a4b8dee20c3577bcfd","https://git.kernel.org/stable/c/28010791193a4503f054e8d69a950ef815deb539","https://git.kernel.org/stable/c/7cc08f2f127b9a66f46ea918e34353811a7cb378","https://git.kernel.org/stable/c/bd75eba88e88d7b896b0c737b02a74a12afc235f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-39861","score":0.00155,"percentile":0.04575,"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."]}