{"id":"CVE-2026-68085","revision":"265d8bb6421f4149b407681558a127e3","records":[{"revision":"265d8bb6421f4149b407681558a127e3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68085","aliases":[],"title":"Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled\n\nHCI_UART_SENDING bit in tx_state means write_work is pending and blocks\nqueueing it again.  Currently this bit is not cleared when canceling the\nwork in hci_uart_close(), which blocks future writes when device is\nreopened later if write_work was pending.\n\nFix by clearing HCI_UART_SENDING when canceling the work.\n\nAlso make clearing of tx_skb safe by using disable_work_sync +\nenable_work instead of just cancel_work_sync.  hci_uart_flush() purges\nthe proto tx queue so we can cancel the pending write_work there,\ninstead of doing it just in hci_uart_close().  Re-enable and possibly\nrequeue the work after queue flush.","state":0,"publishedAt":"2026-08-10T11:51:39.079+00:00","modifiedAt":"2026-10-19T20:48:44.294+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                        \"drivers/bluetooth/hci_ldisc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"81c7a3c22a0f2808cf4ae0b4908f59763b23606d\",\n                            \"lessThan\": \"d52446b3e735cfdbdc2a58342163803bc2e64249\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"192cb0f1ca706d9a1bc36ae0ad5f666d1e4fd894\",\n                            \"lessThan\": \"b9dd39cf1667e378b25a082ca796d495d578c5d3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1bb9336ae6b54a5f6a353c4bd4ed9a4307e429b\",\n                            \"lessThan\": \"714d861d35d937f23375a4517569b13917bbbe51\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1bb9336ae6b54a5f6a353c4bd4ed9a4307e429b\",\n                            \"lessThan\": \"1b0d946d6f08bd39211385bc703a440911b41e46\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"78aad93e938f013d9272fe0ee168f27883afa95c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"e2d19969c8d9198ecc3090bcd5312ecd503a3339\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c85cff648a2bc92322912db5f1727ad05afae7b6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d20d48be2c4a071fb015eb09bda2cecd25daf34\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7338031946bd06f6dff149e67b60c4cd083bfea8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.12.92\",\n                            \"lessThan\": \"6.12.96\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.34\",\n                            \"lessThan\": \"6.18.39\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.258\",\n                            \"lessThan\": \"5.11\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.209\",\n                            \"lessThan\": \"5.16\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.175\",\n                            \"lessThan\": \"6.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.142\",\n                            \"lessThan\": \"6.7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.11\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\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                        \"drivers/bluetooth/hci_ldisc.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.96\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.39\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.4\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d52446b3e735cfdbdc2a58342163803bc2e64249","https://git.kernel.org/stable/c/b9dd39cf1667e378b25a082ca796d495d578c5d3","https://git.kernel.org/stable/c/714d861d35d937f23375a4517569b13917bbbe51","https://git.kernel.org/stable/c/1b0d946d6f08bd39211385bc703a440911b41e46"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68085","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68085","identifiers":["CVE-2026-68085"]},"retained":false,"historicalAffected":[]}],"coverage":[]}