{"id":"CVE-2026-98458","revision":"0ecc266472d24a638248f905711b176a","records":[{"revision":"0ecc266472d24a638248f905711b176a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98458","aliases":[],"title":"Bluetooth: ISO: release unused CIS holds after channel attach","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.","state":0,"publishedAt":"2026-10-18T15:15:07.572+00:00","modifiedAt":"2026-10-19T09:19:54.818+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/iso.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"69997d50ec574be816b4ee8f9cee52ebbd53f8bd\",\n                            \"lessThan\": \"e0e8b70207eaf27aee0a05ec5bf2d1b6bcb004d1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"69997d50ec574be816b4ee8f9cee52ebbd53f8bd\",\n                            \"lessThan\": \"ed4c026cc4094dfb7a329b9d8df0ddd0be1b2458\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"69997d50ec574be816b4ee8f9cee52ebbd53f8bd\",\n                            \"lessThan\": \"e5fcca51177f224604e3a8c926ffd5edbeb58b09\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"69997d50ec574be816b4ee8f9cee52ebbd53f8bd\",\n                            \"lessThan\": \"0fcd4dad555c96e0bd3a1b8c569f989be85c7341\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"net/bluetooth/iso.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.113\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.55\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.9\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/e0e8b70207eaf27aee0a05ec5bf2d1b6bcb004d1","https://git.kernel.org/stable/c/ed4c026cc4094dfb7a329b9d8df0ddd0be1b2458","https://git.kernel.org/stable/c/e5fcca51177f224604e3a8c926ffd5edbeb58b09","https://git.kernel.org/stable/c/0fcd4dad555c96e0bd3a1b8c569f989be85c7341"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98458","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98458","identifiers":["CVE-2026-98458"]},"retained":false,"historicalAffected":[]}],"coverage":[]}