{"id":"CVE-2026-68391","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds\n\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds\n\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF.  Use o…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < 84674dd1d3192ecb050827d3148642609c0c9dbb","Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < b56f2ecafc08f372bf0529f9c4f3f429cb1702dc","Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < f915e74b6f18293d1d69a2a3305ef321ff7c0172","Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < d5b3b484b62bb0f4542e7622789d28871626cdf0","Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < ecdcb55ea1c01dda074406f38058785a69526734","Linux >= 7b445e220db9a2c58be5d09bbbd322abf1b1452a < da55f570191d5d72f10c607a7043b947eb05ea46","Linux 6.0"],"published":"2026-08-10","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:36.830","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68391","references":[{"url":"https://git.kernel.org/stable/c/84674dd1d3192ecb050827d3148642609c0c9dbb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b56f2ecafc08f372bf0529f9c4f3f429cb1702dc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d5b3b484b62bb0f4542e7622789d28871626cdf0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/da55f570191d5d72f10c607a7043b947eb05ea46","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ecdcb55ea1c01dda074406f38058785a69526734","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f915e74b6f18293d1d69a2a3305ef321ff7c0172","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00129,"epssPercentile":0.02126,"ingestedAt":"2026-10-03T11:43:42.117Z","slug":"CVE-2026-68391","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds\n\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF.  Use of hci_conn in hci_sync callbacks also\nneeds to hold refcount to avoid UAF.\n\nTake appropriate locks for hci_conn lookups, and take refcount for\nhci_conn pointers stored in mgmt_pending_cmd so that the pointer stays\nvalid.\n\nWhen accessing conn->state, ensure hdev->lock is held to avoid data\nrace.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}