{"cve":"CVE-2026-98458","nvd":{"published":"2026-10-18T16:16:56.230","modified":"2026-10-19T10:18:55.257","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: ISO: release unused CIS holds after channel attach\n\nhci_bind_cis() and hci_connect_cis() return one hci_conn hold for the\nISO layer.  A new channel association consumes that hold, which is\neventually released by iso_conn_free().\n\nThere are two cases where iso_chan_add() does not create an association:\nit returns success when the socket is already attached to the same\niso_conn, and it returns -EBUSY when another socket is attached.  The\nhold returned for the current call is unused in both cases.  This occurs\nwhen deferred setup calls iso_connect_cis() again for its existing\nsocket, or when another socket attempts to reuse the CIS.\n\nDetect the idempotent case while the connection is locked and release\nthe unused hold after iso_chan_add().  Also release it on -EBUSY.  Do not\ndrop it for other errors: a newly allocated iso_conn releases the\ntransferred hold when its last temporary reference is put.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0fcd4dad555c96e0bd3a1b8c569f989be85c7341","https://git.kernel.org/stable/c/e0e8b70207eaf27aee0a05ec5bf2d1b6bcb004d1","https://git.kernel.org/stable/c/e5fcca51177f224604e3a8c926ffd5edbeb58b09","https://git.kernel.org/stable/c/ed4c026cc4094dfb7a329b9d8df0ddd0be1b2458"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98458","score":0.00209,"percentile":0.10982,"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."]}