{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74510", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.909Z", "datePublished": "2026-08-15T12:27:32.503Z", "dateUpdated": "2026-08-23T12:47:31.049Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:47:31.049Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: fix UAF in pair command cancellation\n\nThe pairing completion and authentication failure callbacks look up the\npending MGMT_OP_PAIR_DEVICE command by walking hdev->mgmt_pending. The\nlookup returned a command that was still linked on the shared pending list,\nwithout keeping mgmt_pending_lock held for the later dereference and\nremoval.\n\nA concurrent MGMT_OP_CANCEL_PAIR_DEVICE request can remove and free the\nsame pending command before the callback uses it. The reverse race is also\npossible when cancel_pair_device() gets a command from pending_find() and a\ncallback removes it before the cancel path dereferences it. This can lead\nto a use-after-free and a second list_del().\n\nMake the pairing lookup helpers transfer ownership of the pending command\nby removing it from hdev->mgmt_pending while holding mgmt_pending_lock.\nThe callbacks and cancel path then complete the command and free it\ndirectly, so racing paths cannot find or free the same command again. Take\na temporary hci_conn reference in cancel_pair_device() because the command\ncompletion drops the reference stored in the pending command."}], "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 UAF is triggered through local AF_BLUETOOTH HCI_CHANNEL_CONTROL management commands (hci_sock_bind/sendmsg -> hci_mgmt_cmd -> pair_device/cancel_pair_device); remote Bluetooth peers cannot issue MGMT_OP_PAIR_DEVICE or MGMT_OP_CANCEL_PAIR_DEVICE over the air.\nAC:L - An attacker controls the race by concurrently issuing MGMT_OP_PAIR_DEVICE and MGMT_OP_CANCEL_PAIR_DEVICE from threads or sockets they own while pairing HCI callbacks fire, and can retry until cancel and completion/auth/SMP paths interleave on the same pending command.\nPR:L - pair_device and cancel_pair_device lack HCI_MGMT_UNTRUSTED and require HCI_SOCK_TRUSTED (CAP_NET_ADMIN at bind); per kernel CNA guidance CAP_NET_ADMIN reachable via unprivileged user namespaces (unshare -Urn) maps to PR:L, consistent with similar Bluetooth mgmt UAF scores.\nUI:N - No victim interaction is required beyond a powered Bluetooth controller; the attacker directly sends the conflicting PAIR_DEVICE and CANCEL_PAIR_DEVICE management commands that create the pending entry and race the unlocked find_pairing/pending_find paths against completion callbacks.\nS:U - Exploitation corrupts kernel Bluetooth MGMT heap objects (mgmt_pending_cmd) within the same host kernel security authority; this is standard local kernel memory corruption, not a VM, IOMMU, or cross-authority boundary escape.\nC:H - Use-after-free of mgmt_pending_cmd when find_pairing or pending_find returns a still-linked command without holding mgmt_pending_lock through later dereference and mgmt_pending_remove, enabling arbitrary kernel memory disclosure via slab reuse of the freed object.\nI:H - Slab UAF and double list_del on mgmt_pending_cmd during concurrent cancel_pair_device and pairing/auth/SMP completion callbacks provide attacker-influenced heap corruption primitives exploitable for arbitrary kernel writes and control-flow hijacking per kernel UAF guidance.\nA:H - Dereferencing or list_del on a freed mgmt_pending_cmd during the cancel versus callback race causes kernel oops or panic; repeated concurrent PAIR_DEVICE and CANCEL_PAIR_DEVICE commands during active pairing can reliably crash or hang 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": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "50af4280a587c9971b5388cbc438f1324e626b7b", "status": "affected", "versionType": "git"}, {"version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "86ed4dd6548ccf277bc691bc912ca06e76b9d80c", "status": "affected", "versionType": "git"}, {"version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "7c2a152a897cd1c184b2051484d4f74d803e7f4a", "status": "affected", "versionType": "git"}, {"version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "c569def320aa8b1fde89227e2ea96606790fd86d", "status": "affected", "versionType": "git"}, {"version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "51be7280980fddc90ebe874a69c2fe8ab02bb46a", "status": "affected", "versionType": "git"}, {"version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "lessThan": "d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd", "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/mgmt.c"], "versions": [{"version": "2.6.39", "status": "affected"}, {"version": "0", "lessThan": "2.6.39", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "2.6.39", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/50af4280a587c9971b5388cbc438f1324e626b7b"}, {"url": "https://git.kernel.org/stable/c/86ed4dd6548ccf277bc691bc912ca06e76b9d80c"}, {"url": "https://git.kernel.org/stable/c/7c2a152a897cd1c184b2051484d4f74d803e7f4a"}, {"url": "https://git.kernel.org/stable/c/c569def320aa8b1fde89227e2ea96606790fd86d"}, {"url": "https://git.kernel.org/stable/c/51be7280980fddc90ebe874a69c2fe8ab02bb46a"}, {"url": "https://git.kernel.org/stable/c/d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd"}], "title": "Bluetooth: mgmt: fix UAF in pair command cancellation", "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": "50af4280a587c9971b5388cbc438f1324e626b7b", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}, {"lessThan": "86ed4dd6548ccf277bc691bc912ca06e76b9d80c", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}, {"lessThan": "7c2a152a897cd1c184b2051484d4f74d803e7f4a", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}, {"lessThan": "c569def320aa8b1fde89227e2ea96606790fd86d", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}, {"lessThan": "51be7280980fddc90ebe874a69c2fe8ab02bb46a", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}, {"lessThan": "d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd", "status": "affected", "version": "e9a416b5ce0c0f93819f55d34cf6882196e9c3b2", "versionType": "git"}]}, {"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": "2.6.39"}, {"lessThan": "2.6.39", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.151", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.103", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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 UAF in pair command cancellation\n\nThe pairing completion and authentication failure callbacks look up the\npending MGMT_OP_PAIR_DEVICE command by walking hdev->mgmt_pending. The\nlookup returned a command that was still linked on the shared pending list,\nwithout keeping mgmt_pending_lock held for the later dereference and\nremoval.\n\nA concurrent MGMT_OP_CANCEL_PAIR_DEVICE request can remove and free the\nsame pending command before the callback uses it. The reverse race is also\npossible when cancel_pair_device() gets a command from pending_find() and a\ncallback removes it before the cancel path dereferences it. This can lead\nto a use-after-free and a second list_del().\n\nMake the pairing lookup helpers transfer ownership of the pending command\nby removing it from hdev->mgmt_pending while holding mgmt_pending_lock.\nThe callbacks and cancel path then complete the command and free it\ndirectly, so racing paths cannot find or free the same command again. Take\na temporary hci_conn reference in cancel_pair_device() because the command\ncompletion drops the reference stored in the pending command."}], "id": "CVE-2026-74510", "lastModified": "2026-08-23T13:16:45.310", "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": "2026-08-15T13:17:56.063", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50af4280a587c9971b5388cbc438f1324e626b7b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/51be7280980fddc90ebe874a69c2fe8ab02bb46a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c2a152a897cd1c184b2051484d4f74d803e7f4a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/86ed4dd6548ccf277bc691bc912ca06e76b9d80c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c569def320aa8b1fde89227e2ea96606790fd86d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Bluetooth: mgmt: fix UAF in pair command cancellation", "id": "2516970", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516970"}, "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-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: mgmt: fix UAF in pair command cancellation\nThe pairing completion and authentication failure callbacks look up the\npending MGMT_OP_PAIR_DEVICE command by walking hdev->mgmt_pending. The\nlookup returned a command that was still linked on the shared pending list,\nwithout keeping mgmt_pending_lock held for the later dereference and\nremoval.\nA concurrent MGMT_OP_CANCEL_PAIR_DEVICE request can remove and free the\nsame pending command before the callback uses it. The reverse race is also\npossible when cancel_pair_device() gets a command from pending_find() and a\ncallback removes it before the cancel path dereferences it. This can lead\nto a use-after-free and a second list_del().\nMake the pairing lookup helpers transfer ownership of the pending command\nby removing it from hdev->mgmt_pending while holding mgmt_pending_lock.\nThe callbacks and cancel path then complete the command and free it\ndirectly, so racing paths cannot find or free the same command again. Take\na temporary hci_conn reference in cancel_pair_device() because the command\ncompletion drops the reference stored in the pending command.", "A flaw was found in the Linux kernel's Bluetooth management (mgmt) component. A race condition exists during the cancellation of a pairing command and the handling of pairing completion or authentication failure callbacks. This race condition can lead to a use-after-free vulnerability, which may allow a local attacker to cause a denial of service or potentially achieve privilege escalation."], "name": "CVE-2026-74510", "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": "Not 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"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74510\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74510\nhttps://lore.kernel.org/linux-cve-announce/2026081542-CVE-2026-74510-f610@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e9a416b5ce0c0f93819f55d34cf6882196e9c3b2,86ed4dd6548ccf277bc691bc912ca06e76b9d80c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e9a416b5ce0c0f93819f55d34cf6882196e9c3b2,7c2a152a897cd1c184b2051484d4f74d803e7f4a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e9a416b5ce0c0f93819f55d34cf6882196e9c3b2,c569def320aa8b1fde89227e2ea96606790fd86d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e9a416b5ce0c0f93819f55d34cf6882196e9c3b2,51be7280980fddc90ebe874a69c2fe8ab02bb46a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e9a416b5ce0c0f93819f55d34cf6882196e9c3b2,d0a7b48ad0921bd88effaee10bf970ab1d5d0ddd)"}}], "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": "2.6.39"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.39)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc6,*]"}}], "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": "2026-08-15T15:30:09.536378+00:00", "updated": "2026-08-21T23:00:14.813533+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}