{"id":"CVE-2026-80692","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks\n\nThere is theoretical UAF if the conn is freed while the hci_sync task\nis running.\n\nHold refcount …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks\n\nThere is theoretical UAF if the conn is freed while the hci_sync task\nis running.\n\nHold refcount …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 881559af5f5c545f6828e7c74d79813eb886d523 < a4de6fc95b2f36967fc247ae51cad2171194f7cd","Linux >= 881559af5f5c545f6828e7c74d79813eb886d523 < 9a77f296aff4b2ca5f2928ab3a3220c82d8b4074","Linux >= 881559af5f5c545f6828e7c74d79813eb886d523 < 2f5d635ad5906b0235bc0c870e8beba3116e1e98","Linux d948e1ffa1d40240d5c81af6dcbcb87b39cb8d3c","Linux 5dd0bd277a0a936708a33ecc447dce77a08cbde6","Linux >= 6.6.51 < 6.7","Linux >= 6.8.9 < 6.9","Linux 6.9"],"published":"2026-08-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:51.553","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80692","references":[{"url":"https://git.kernel.org/stable/c/2f5d635ad5906b0235bc0c870e8beba3116e1e98","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9a77f296aff4b2ca5f2928ab3a3220c82d8b4074","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a4de6fc95b2f36967fc247ae51cad2171194f7cd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0034,"epssPercentile":0.25837,"ingestedAt":"2026-10-15T11:00:41.663Z","slug":"CVE-2026-80692","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks\n\nThere is theoretical UAF if the conn is freed while the hci_sync task\nis running.\n\nHold refcount to avoid that.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}