{"cve":"CVE-2026-98632","nvd":{"published":"2026-10-18T16:17:16.297","modified":"2026-10-19T10:19:27.457","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: Dequeue pending mesh_send_sync entries on cancel\n\nIn send_cancel(), pending mesh_tx objects are removed from the\nhdev->mesh_pending list and freed via mesh_send_complete().  However, if\na mesh transmission was already queued onto hdev->cmd_sync_work_list via\nmesh_next(), the queued entry retains a raw pointer to mesh_tx.\n\nWhen hci_cmd_sync_work later processes the entry, it attempts to execute\nmesh_send_sync and its destroy callback mesh_send_start_complete using\nthe already freed mesh_tx pointer, leading to a use-after-free.\n\nFix this by invoking hci_cmd_sync_dequeue() for mesh_send_sync on the\ntarget mesh_tx before completing it.  If the entry is found and dequeued,\nits destroy callback will complete and free the object; otherwise,\nmesh_send_complete() is called directly.\n\nAdditionally, ensure the transmission queue advances after cancellation\nor errors.  In mesh_send_start_complete(), call mesh_next() on error\nunless err is -ECANCELED, because hci_cmd_sync_dequeue() holds\nhdev->cmd_sync_work_lock and calling mesh_next() synchronously would\ndeadlock.  Instead, advance the queue in send_cancel() once the lock is\nreleased and if no transmission is in progress.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/03ced4687fb79286be7fdee0fc58d2c74de3e7bb","https://git.kernel.org/stable/c/084be90948632a5a358821e687b11a14445aae76","https://git.kernel.org/stable/c/2189a219397d8e73808a67c4aade837b635705da","https://git.kernel.org/stable/c/718a8ffa180d469f99ad4f746f00cafd39456415","https://git.kernel.org/stable/c/71af682ba4692c2ed9ace4c3d4ca462ae368c029"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98632","score":0.00173,"percentile":0.06643,"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."]}