{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68392", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.388Z", "datePublished": "2026-08-10T12:04:11.543Z", "dateUpdated": "2026-08-13T22:44:22.930Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-13T22:44:22.930Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: fix locking in unpair_device/disconnect_sync\n\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF.\n\nTake hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU\nto ensure the conn is fully initialized at this point."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path is entered by a local process sending MGMT_OP_DISCONNECT/MGMT_OP_UNPAIR_DEVICE on an AF_BLUETOOTH/BTPROTO_HCI socket bound to HCI_CHANNEL_CONTROL, and the freeing side is drivable locally via /dev/vhci events or ioctl(HCIDEVDOWN)/hci_conn_hash_flush; no over-the-air access is required.\nAC:L - The attacker controls both sides of the race \u2014 repeatedly queuing the mgmt command while tearing the connection down (vhci-injected disconnect-complete, HCIDEVDOWN, or connection timeout) \u2014 and can retry indefinitely, so the window is reached reliably.\nPR:L - The mgmt command needs a trusted control socket, but that capability is routinely held by the Bluetooth daemon and exposed to unprivileged session users through BlueZ Disconnect/RemoveDevice D-Bus methods, so an ordinary local user can drive the path with attacker-chosen addresses.\nUI:N - Both the mgmt command and the concurrent connection teardown are initiated programmatically by the attacker; no victim action such as pairing confirmation or opening a file is needed.\nS:U - The corruption is confined to kernel heap objects managed by the Bluetooth subsystem within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - hci_abort_conn() dereferences the freed hci_conn (conn->hdev, conn->abort_reason, conn->handle) after it has been unlinked and released, so an attacker who reclaims the slab with controlled data obtains a read primitive over kernel memory and can leak pointers.\nI:H - The use-after-free is not read-only: hci_abort_conn() stores the attacker-reachable reason byte into conn->abort_reason and hci_conn_get() increments a refcount inside the freed object, giving a write primitive into reclaimed heap memory that is leverageable for control-flow hijack.\nA:H - Dereferencing a freed or partially initialized hci_conn and then queuing abort_conn_sync on it produces slab-use-after-free oopses, refcount underflow, and kernel panics, crashing the system."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/mgmt.c"], "versions": [{"version": "249c88e7fb45b6b705040c5af4bd0d0f2bc9735c", "lessThan": "8bc83f9ef6789571f399ff631a2a14a12b6d8585", "status": "affected", "versionType": "git"}, {"version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "lessThan": "579faba5ede6df6b7f36777c431dc8dcf9d272e7", "status": "affected", "versionType": "git"}, {"version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "lessThan": "ca58ad287bfc5b9d31a72ecb8650289df2b57250", "status": "affected", "versionType": "git"}, {"version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "lessThan": "b11511006f9e17000de3f4cadee451364f658ca3", "status": "affected", "versionType": "git"}, {"version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "lessThan": "16cd66443957e4ad42155c6fec401012f600c6f8", "status": "affected", "versionType": "git"}, {"version": "58afdc9b18871eb1d461c725be9e9f3f44a39aeb", "status": "affected", "versionType": "git"}, {"version": "6.6.51", "lessThan": "6.6.148", "status": "affected", "versionType": "semver"}, {"version": "6.10.10", "lessThan": "6.11", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/mgmt.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc4", "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": "6.6.51", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2-rc4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10.10"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8bc83f9ef6789571f399ff631a2a14a12b6d8585"}, {"url": "https://git.kernel.org/stable/c/579faba5ede6df6b7f36777c431dc8dcf9d272e7"}, {"url": "https://git.kernel.org/stable/c/ca58ad287bfc5b9d31a72ecb8650289df2b57250"}, {"url": "https://git.kernel.org/stable/c/b11511006f9e17000de3f4cadee451364f658ca3"}, {"url": "https://git.kernel.org/stable/c/16cd66443957e4ad42155c6fec401012f600c6f8"}], "title": "Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bluetooth/mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8bc83f9ef6789571f399ff631a2a14a12b6d8585", "status": "affected", "version": "249c88e7fb45b6b705040c5af4bd0d0f2bc9735c", "versionType": "git"}, {"lessThan": "579faba5ede6df6b7f36777c431dc8dcf9d272e7", "status": "affected", "version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "versionType": "git"}, {"lessThan": "ca58ad287bfc5b9d31a72ecb8650289df2b57250", "status": "affected", "version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "versionType": "git"}, {"lessThan": "b11511006f9e17000de3f4cadee451364f658ca3", "status": "affected", "version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "versionType": "git"}, {"lessThan": "16cd66443957e4ad42155c6fec401012f600c6f8", "status": "affected", "version": "227a0cdf4a028a73dc256d0f5144b4808d718893", "versionType": "git"}, {"status": "affected", "version": "58afdc9b18871eb1d461c725be9e9f3f44a39aeb", "versionType": "git"}, {"lessThan": "6.6.148", "status": "affected", "version": "6.6.51", "versionType": "semver"}, {"lessThan": "6.11", "status": "affected", "version": "6.10.10", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bluetooth/mgmt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: fix locking in unpair_device/disconnect_sync\n\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF.\n\nTake hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU\nto ensure the conn is fully initialized at this point."}], "id": "CVE-2026-68392", "lastModified": "2026-08-13T23:17:34.720", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-10T13:20:32.550", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/16cd66443957e4ad42155c6fec401012f600c6f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/579faba5ede6df6b7f36777c431dc8dcf9d272e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8bc83f9ef6789571f399ff631a2a14a12b6d8585"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b11511006f9e17000de3f4cadee451364f658ca3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ca58ad287bfc5b9d31a72ecb8650289df2b57250"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel Bluetooth management: Use-After-Free vulnerability", "id": "2513360", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513360"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: mgmt: fix locking in unpair_device/disconnect_sync\nDereferencing RCU-protected pointers outside critical sections is\ninvalid and may lead to UAF.\nTake hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU\nto ensure the conn is fully initialized at this point.", "A flaw was found in the Linux kernel's Bluetooth management subsystem. This vulnerability occurs due to incorrect locking when handling memory pointers during device unpairing and disconnection. An attacker could exploit this to trigger a Use-After-Free (UAF) condition, which is a type of memory corruption that may lead to system instability or other impacts."], "name": "CVE-2026-68392", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:04:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68392\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68392\nhttps://git.kernel.org/stable/c/16cd66443957e4ad42155c6fec401012f600c6f8\nhttps://git.kernel.org/stable/c/579faba5ede6df6b7f36777c431dc8dcf9d272e7\nhttps://git.kernel.org/stable/c/8bc83f9ef6789571f399ff631a2a14a12b6d8585\nhttps://git.kernel.org/stable/c/b11511006f9e17000de3f4cadee451364f658ca3\nhttps://git.kernel.org/stable/c/ca58ad287bfc5b9d31a72ecb8650289df2b57250"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[249c88e7fb45b6b705040c5af4bd0d0f2bc9735c,8bc83f9ef6789571f399ff631a2a14a12b6d8585)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[227a0cdf4a028a73dc256d0f5144b4808d718893,579faba5ede6df6b7f36777c431dc8dcf9d272e7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[227a0cdf4a028a73dc256d0f5144b4808d718893,ca58ad287bfc5b9d31a72ecb8650289df2b57250)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[227a0cdf4a028a73dc256d0f5144b4808d718893,b11511006f9e17000de3f4cadee451364f658ca3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[227a0cdf4a028a73dc256d0f5144b4808d718893,16cd66443957e4ad42155c6fec401012f600c6f8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "58afdc9b18871eb1d461c725be9e9f3f44a39aeb"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.51,6.6.148)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.10.10,6.11)"}}], "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": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "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": "2026-08-10T16:15:04.434786+00:00", "updated": "2026-08-14T01:15:17.091256+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}