{"id":"CVE-2025-40318","revision":"a38f6e6a0c4e4c51a162b6ec999ce968","records":[{"revision":"a38f6e6a0c4e4c51a162b6ec999ce968","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40318","aliases":[],"title":"Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once\n\nhci_cmd_sync_dequeue_once() does lookup and then cancel\nthe entry under two separate lock sections. Meanwhile,\nhci_cmd_sync_work() can also delete the same entry,\nleading to double list_del() and \"UAF\".\n\nFix this by holding cmd_sync_work_lock across both\nlookup and cancel, so that the entry cannot be removed\nconcurrently.","state":0,"publishedAt":"2025-12-08T00:46:45.382+00:00","modifiedAt":"2026-10-15T22:02:43.644+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/hci_sync.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f00f36db76eb8fd10d13e80e2590f23b5beaa54d\",\n                            \"lessThan\": \"0a94f7e017438935c09ef833a1aa908ad9875213\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1499f79995c7ee58e3bfeeff75f6d1b37dcda881\",\n                            \"lessThan\": \"932c0a4f77ac13e526fdd5b42914d29c9821d389\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"505ea2b295929e7be2b4e1bc86ee31cb7862fb01\",\n                            \"lessThan\": \"ae76cf6c2c842944c6514c57df54d728f1916553\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"505ea2b295929e7be2b4e1bc86ee31cb7862fb01\",\n                            \"lessThan\": \"9cd536970192b72257afcdfba0bfc09993e6f19c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"505ea2b295929e7be2b4e1bc86ee31cb7862fb01\",\n                            \"lessThan\": \"09b0cd1297b4dbfe736aeaa0ceeab2265f47f772\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"357603f4d396d85fbf0045512efaf1d7f7394ed7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.1.120\",\n                            \"lessThan\": \"6.1.159\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.51\",\n                            \"lessThan\": \"6.6.117\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.8.9\",\n                            \"lessThan\": \"6.9\",\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                        \"net/bluetooth/hci_sync.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.159\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.117\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.58\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.17.8\",\n                            \"lessThanOrEqual\": \"6.17.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18\",\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:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/0a94f7e017438935c09ef833a1aa908ad9875213","https://git.kernel.org/stable/c/932c0a4f77ac13e526fdd5b42914d29c9821d389","https://git.kernel.org/stable/c/ae76cf6c2c842944c6514c57df54d728f1916553","https://git.kernel.org/stable/c/9cd536970192b72257afcdfba0bfc09993e6f19c","https://git.kernel.org/stable/c/09b0cd1297b4dbfe736aeaa0ceeab2265f47f772"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40318","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40318","identifiers":["CVE-2025-40318"]},"retained":false,"historicalAffected":[]}],"coverage":[]}