{"cve":"CVE-2026-52918","nvd":{"published":"2026-06-24T08:16:21.713","modified":"2026-10-19T20:18:46.520","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: serialize accept_q access\n\nbt_sock_poll() walks the accept queue without synchronization, while\nchild teardown can unlink the same socket and drop its last reference.\nThe unsynchronized accept queue walk has existed since the initial\nBluetooth import.\n\nProtect accept_q with a dedicated lock for queue updates and polling.\nAlso rework bt_accept_dequeue() to take temporary child references under\nthe queue lock before dropping it and locking the child socket.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-362"],"references":["https://git.kernel.org/stable/c/41c8c1c7923e86e0eb59cfb4279349112756a336","https://git.kernel.org/stable/c/4ec17782fd186f901a7329605d11048b085b945a","https://git.kernel.org/stable/c/85f8674cae82053f1e6bab295f6a8422cca14db5","https://git.kernel.org/stable/c/8b4c412e001b0c670eb937beab491af974da55b3","https://git.kernel.org/stable/c/a218bf69eb51fefe59a3976fa8925261141f681c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-52918","score":0.00218,"percentile":0.12144,"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."]}