CVE-2026-31771

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Convert hci_store_wake_reason() into a small helper that only\nstores an already-validated bdaddr while the caller holds hci_dev_lock().\nUse the same helper after hci_event_func() with a NULL address to\npreserve the existing unexpected-wake fallback semantics when no\nvalidated event handler records a wake address.\n\nAnnotate the helper with __must_hold(&hdev->lock) and add\nlockdep_assert_held(&hdev->lock) so future call paths keep the lock\ncontract explicit.\n\nCall the helper from hci_conn_request_evt(), hci_conn_complete_evt(),\nhci_sync_conn_complete_evt(), le_conn_complete_evt(),\nhci_le_adv_report_evt(), hci_le_ext_adv_report_evt(),\nhci_le_direct_adv_report_evt(), hci_le_pa_sync_established_evt(), and\nhci_le_past_received_evt()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - The vulnerable parser is in Bluetooth HCI event handling, reached from controller events generated by nearby Bluetooth activity such as connection or advertising wake events. Bluetooth attacks require radio adjacency rather than IP network reachability.\nAC:L - No race is required; a short HCI event reaches wake-reason parsing before the normal per-event length checks. The suspended/wake-reason state is a normal Bluetooth remote-wake deployment condition, so under the higher-severity rule this is low complexity.\nPR:N - An adjacent Bluetooth peer does not need privileges on the vulnerable host, and affected events can occur before any Bluetooth authentication or pairing decision in the host stack. Local HCI injection paths may require privileges, but the adjacent radio scenario requires none.\nUI:N - No victim action is required once Bluetooth remote wake/scanning is enabled and the system is in the affected state. The attacker only needs to deliver the triggering Bluetooth activity/event.\nS:U - The impact remains within the same kernel/host security authority. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The bug is an out-of-bounds kernel heap read from an skb before validation, copied into wake-address state that is later reported through management resume events. Although each copy is small, repeated malformed wake events and multiple event layouts make kernel memory disclosure plausible, so the higher severity option is selected.\nI:N - The vulnerable operation copies out-of-bounds source bytes into intended hci_dev wake-reason fields, but does not provide an out-of-bounds write or control over unrelated kernel memory. I found no path from this state corruption to arbitrary modification or code execution.\nA:H - The malformed short event can drive invalid kernel memory reads before bounds checks; depending on allocator layout or hardening, this can cause an oops/panic. As a kernel fault from attacker-supplied malformed Bluetooth input is plausible, availability impact is high."}]}], "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": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "fbea63d0d301edd4a42f4390b49b8519d78b802d", "status": "affected", "versionType": "git"}, {"version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "1e4b738dd0d0f7b237686167706badad9d30649c", "status": "affected", "versionType": "git"}, {"version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "ac7889b0fe441e4ef892c40b1d002e91f93fa4ae", "status": "affected", "versionType": "git"}, {"version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2", "status": "affected", "versionType": "git"}, {"version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "86c8d07a64d553c41e213b52650020010f9ef23e", "status": "affected", "versionType": "git"}, {"version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "2b2bf47cd75518c36fa2d41380e4a40641cc89cd", "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": "5.10", "status": "affected"}, {"version": "0", "lessThan": "5.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "5.10", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fbea63d0d301edd4a42f4390b49b8519d78b802d"}, {"url": "https://git.kernel.org/stable/c/1e4b738dd0d0f7b237686167706badad9d30649c"}, {"url": "https://git.kernel.org/stable/c/ac7889b0fe441e4ef892c40b1d002e91f93fa4ae"}, {"url": "https://git.kernel.org/stable/c/dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2"}, {"url": "https://git.kernel.org/stable/c/86c8d07a64d553c41e213b52650020010f9ef23e"}, {"url": "https://git.kernel.org/stable/c/2b2bf47cd75518c36fa2d41380e4a40641cc89cd"}], "title": "Bluetooth: hci_event: move wake reason storage into validated event handlers", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-31771", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T15:13:04.391952Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:06:07.965Z"}}]}}

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Bluetooth attacks require radio adjacency rather than IP network reachability.\nAC:L - No race is required; a short HCI event reaches wake-reason parsing before the normal per-event length checks. The suspended/wake-reason state is a normal Bluetooth remote-wake deployment condition, so under the higher-severity rule this is low complexity.\nPR:N - An adjacent Bluetooth peer does not need privileges on the vulnerable host, and affected events can occur before any Bluetooth authentication or pairing decision in the host stack. Local HCI injection paths may require privileges, but the adjacent radio scenario requires none.\nUI:N - No victim action is required once Bluetooth remote wake/scanning is enabled and the system is in the affected state. The attacker only needs to deliver the triggering Bluetooth activity/event.\nS:U - The impact remains within the same kernel/host security authority. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The bug is an out-of-bounds kernel heap read from an skb before validation, copied into wake-address state that is later reported through management resume events. Although each copy is small, repeated malformed wake events and multiple event layouts make kernel memory disclosure plausible, so the higher severity option is selected.\nI:N - The vulnerable operation copies out-of-bounds source bytes into intended hci_dev wake-reason fields, but does not provide an out-of-bounds write or control over unrelated kernel memory. I found no path from this state corruption to arbitrary modification or code execution.\nA:H - The malformed short event can drive invalid kernel memory reads before bounds checks; depending on allocator layout or hardening, this can cause an oops/panic. As a kernel fault from attacker-supplied malformed Bluetooth input is plausible, availability impact is high."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "fbea63d0d301edd4a42f4390b49b8519d78b802d", "versionType": "git"}, {"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "1e4b738dd0d0f7b237686167706badad9d30649c", "versionType": "git"}, {"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "ac7889b0fe441e4ef892c40b1d002e91f93fa4ae", "versionType": "git"}, {"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2", "versionType": "git"}, {"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "86c8d07a64d553c41e213b52650020010f9ef23e", "versionType": "git"}, {"status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "lessThan": "2b2bf47cd75518c36fa2d41380e4a40641cc89cd", "versionType": "git"}], "programFiles": ["net/bluetooth/hci_event.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.114", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.57", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.12", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/hci_event.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/fbea63d0d301edd4a42f4390b49b8519d78b802d"}, {"url": "https://git.kernel.org/stable/c/1e4b738dd0d0f7b237686167706badad9d30649c"}, {"url": "https://git.kernel.org/stable/c/ac7889b0fe441e4ef892c40b1d002e91f93fa4ae"}, {"url": "https://git.kernel.org/stable/c/dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2"}, {"url": "https://git.kernel.org/stable/c/86c8d07a64d553c41e213b52650020010f9ef23e"}, {"url": "https://git.kernel.org/stable/c/2b2bf47cd75518c36fa2d41380e4a40641cc89cd"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: move wake reason storage into validated event handlers\n\nhci_store_wake_reason() is called from hci_event_packet() immediately\nafter stripping the HCI event header but before hci_event_func()\nenforces the per-event minimum payload length from hci_ev_table.\nThis means a short HCI event frame can reach bacpy() before any bounds\ncheck runs.\n\nRather than duplicating skb parsing and per-event length checks inside\nhci_store_wake_reason(), move wake-address storage into the individual\nevent handlers after their existing event-length validation has\nsucceeded. Convert hci_store_wake_reason() into a small helper that only\nstores an already-validated bdaddr while the caller holds hci_dev_lock().\nUse the same helper after hci_event_func() with a NULL address to\npreserve the existing unexpected-wake fallback semantics when no\nvalidated event handler records a wake address.\n\nAnnotate the helper with __must_hold(&hdev->lock) and add\nlockdep_assert_held(&hdev->lock) so future call paths keep the lock\ncontract explicit.\n\nCall the helper from hci_conn_request_evt(), hci_conn_complete_evt(),\nhci_sync_conn_complete_evt(), le_conn_complete_evt(),\nhci_le_adv_report_evt(), hci_le_ext_adv_report_evt(),\nhci_le_direct_adv_report_evt(), hci_le_pa_sync_established_evt(), and\nhci_le_past_received_evt()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.160", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.114", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.57", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.19.12", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0", "versionStartIncluding": "5.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:24:42.601Z"}}}, "cveMetadata": {"cveId": "CVE-2026-31771", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:24:42.601Z", "dateReserved": "2026-03-09T15:48:24.140Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-05-01T14:14:59.918Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/hci_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fbea63d0d301edd4a42f4390b49b8519d78b802d", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}, {"lessThan": "1e4b738dd0d0f7b237686167706badad9d30649c", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}, {"lessThan": "ac7889b0fe441e4ef892c40b1d002e91f93fa4ae", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}, {"lessThan": "dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}, {"lessThan": "86c8d07a64d553c41e213b52650020010f9ef23e", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}, {"lessThan": "2b2bf47cd75518c36fa2d41380e4a40641cc89cd", "status": "affected", "version": "2f20216c1d6fe17c1a224f658be0dc6fab2269c7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/hci_event.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5C6630F4-82C7-43EE-A9AC-FF59BBAEEDD1", "versionEndExcluding": "6.19.12", "versionStartIncluding": "5.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: move wake reason storage into validated event handlers\n\nhci_store_wake_reason() is called from hci_event_packet() immediately\nafter stripping the HCI event header but before hci_event_func()\nenforces the per-event minimum payload length from hci_ev_table.\nThis means a short HCI event frame can reach bacpy() before any bounds\ncheck runs.\n\nRather than duplicating skb parsing and per-event length checks inside\nhci_store_wake_reason(), move wake-address storage into the individual\nevent handlers after their existing event-length validation has\nsucceeded. Convert hci_store_wake_reason() into a small helper that only\nstores an already-validated bdaddr while the caller holds hci_dev_lock().\nUse the same helper after hci_event_func() with a NULL address to\npreserve the existing unexpected-wake fallback semantics when no\nvalidated event handler records a wake address.\n\nAnnotate the helper with __must_hold(&hdev->lock) and add\nlockdep_assert_held(&hdev->lock) so future call paths keep the lock\ncontract explicit.\n\nCall the helper from hci_conn_request_evt(), hci_conn_complete_evt(),\nhci_sync_conn_complete_evt(), le_conn_complete_evt(),\nhci_le_adv_report_evt(), hci_le_ext_adv_report_evt(),\nhci_le_direct_adv_report_evt(), hci_le_pa_sync_established_evt(), and\nhci_le_past_received_evt()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nBluetooth: hci_event: mover el almacenamiento del motivo de activaci\u00f3n a los gestores de eventos validados\n\nhci_store_wake_reason() es llamada desde hci_event_packet() inmediatamente despu\u00e9s de eliminar la cabecera del evento HCI pero antes de que hci_event_func() imponga la longitud m\u00ednima de carga \u00fatil por evento de hci_ev_table. Esto significa que una trama de evento HCI corta puede alcanzar bacpy() antes de que se ejecute cualquier comprobaci\u00f3n de l\u00edmites.\n\nEn lugar de duplicar el an\u00e1lisis de skb y las comprobaciones de longitud por evento dentro de hci_store_wake_reason(), mover el almacenamiento de la direcci\u00f3n de activaci\u00f3n a los gestores de eventos individuales despu\u00e9s de que su validaci\u00f3n de longitud de evento existente haya tenido \u00e9xito. Convertir hci_store_wake_reason() en una peque\u00f1a funci\u00f3n auxiliar que solo almacena una bdaddr ya validada mientras el llamador mantiene hci_dev_lock(). Usar la misma funci\u00f3n auxiliar despu\u00e9s de hci_event_func() con una direcci\u00f3n NULL para preservar la sem\u00e1ntica de reserva de activaci\u00f3n inesperada existente cuando ning\u00fan gestor de eventos validado registra una direcci\u00f3n de activaci\u00f3n.\n\nAnotar la funci\u00f3n auxiliar con __must_hold(&hdev -> lock) y a\u00f1adir lockdep_assert_held(&hdev -> lock) para que las futuras rutas de llamada mantengan expl\u00edcito el contrato de bloqueo.\n\nLlamar a la funci\u00f3n auxiliar desde hci_conn_request_evt(), hci_conn_complete_evt(), hci_sync_conn_complete_evt(), le_conn_complete_evt(), hci_le_adv_report_evt(), hci_le_ext_adv_report_evt(), hci_le_direct_adv_report_evt(), hci_le_pa_sync_established_evt(), y hci_le_past_received_evt()."}], "id": "CVE-2026-31771", "lastModified": "2026-11-11T21:10:00.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31771", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:13:04.391952Z", "version": "2.0.3"}}]}, "published": "2026-05-01T15:16:40.337", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e4b738dd0d0f7b237686167706badad9d30649c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2b2bf47cd75518c36fa2d41380e4a40641cc89cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/86c8d07a64d553c41e213b52650020010f9ef23e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac7889b0fe441e4ef892c40b1d002e91f93fa4ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dbc8b8d33c9e19e17e8b8b1361bbb46e2983f5f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fbea63d0d301edd4a42f4390b49b8519d78b802d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: Bluetooth: hci_event: move wake reason storage into validated event handlers", "id": "2464481", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464481"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-120", "details": ["A flaw was found in the Linux kernel's Bluetooth subsystem. A remote attacker could exploit a missing bounds check by sending a specially crafted, short Bluetooth Host Controller Interface (HCI) event frame. This could lead to a buffer overflow, potentially allowing the attacker to cause a denial of service or execute arbitrary code."], "name": "CVE-2026-31771", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31771\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31771\nhttps://lore.kernel.org/linux-cve-announce/2026050148-CVE-2026-31771-9cd0@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2f20216c1d6fe17c1a224f658be0dc6fab2269c7,86c8d07a64d553c41e213b52650020010f9ef23e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2f20216c1d6fe17c1a224f658be0dc6fab2269c7,2b2bf47cd75518c36fa2d41380e4a40641cc89cd)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T19:00:08.010667+00:00", "updated": "2026-10-23T09:00:15.772455+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}