{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53072", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.383Z", "datePublished": "2026-06-24T16:30:13.570Z", "dateUpdated": "2026-06-24T16:30:13.570Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:30:13.570Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER\n\nWhen protocol sets HCI_PROTO_DEFER, hci_conn_request_evt() calls\nhci_connect_cfm(conn) without hdev->lock. Generally hci_connect_cfm()\nassumes it is held, and if conn is deleted concurrently -> UAF.\n\nOnly SCO and ISO set HCI_PROTO_DEFER and only for defer setup listen,\nand HCI_EV_CONN_REQUEST is not generated for ISO. In the non-deferred\nlistening socket code paths, hci_connect_cfm(conn) is called with\nhdev->lock held.\n\nFix by holding the lock."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_event.c"], "versions": [{"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "60e3f4ff02d1f2d55bfbf2ca32a97285a9771ee4", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "9d4a6c0f43fc5e4d4f062e8e450e5483eb74176e", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "c7777f534a8018ae4bb1c80d8925af4df588a314", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "6b4d226d01ab7da0d2027a2a1e3a6079152e5065", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "541d5bf9b5afaf41090b2a3aa7b47f2db2ff801f", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "385b2d0468a0871fc716c549fa3b0c257c7dbcb3", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "c27224daf0b08efbb2b24ed64b6139b294f5473a", "status": "affected", "versionType": "git"}, {"version": "70c464256310e1c3716099b9d02ece4169272f73", "lessThan": "5c7209a341ff2ac338b2b0375c34a307b37c9ac2", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_event.c"], "versions": [{"version": "3.17", "status": "affected"}, {"version": "0", "lessThan": "3.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.17", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/60e3f4ff02d1f2d55bfbf2ca32a97285a9771ee4"}, {"url": "https://git.kernel.org/stable/c/9d4a6c0f43fc5e4d4f062e8e450e5483eb74176e"}, {"url": "https://git.kernel.org/stable/c/c7777f534a8018ae4bb1c80d8925af4df588a314"}, {"url": "https://git.kernel.org/stable/c/6b4d226d01ab7da0d2027a2a1e3a6079152e5065"}, {"url": "https://git.kernel.org/stable/c/541d5bf9b5afaf41090b2a3aa7b47f2db2ff801f"}, {"url": "https://git.kernel.org/stable/c/385b2d0468a0871fc716c549fa3b0c257c7dbcb3"}, {"url": "https://git.kernel.org/stable/c/c27224daf0b08efbb2b24ed64b6139b294f5473a"}, {"url": "https://git.kernel.org/stable/c/5c7209a341ff2ac338b2b0375c34a307b37c9ac2"}], "title": "Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER", "x_generator": {"engine": "bippy-1.2.0"}}}}

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