CVE-2022-50339

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50339", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T16:03:27.881Z", "datePublished": "2025-09-16T16:11:19.138Z", "dateUpdated": "2026-08-05T08:58:17.461Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:58:17.461Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()\n\nsyzbot is again reporting attempt to cancel uninitialized work\nat mgmt_index_removed() [1], for setting of HCI_MGMT flag from\nmgmt_init_hdev() from hci_mgmt_cmd() from hci_sock_sendmsg() can\nrace with testing of HCI_MGMT flag from mgmt_index_removed() from\nhci_sock_bind() due to lack of serialization via hci_dev_lock().\n\nSince mgmt_init_hdev() is called with mgmt_chan_list_lock held, we can\nsafely split hci_dev_test_and_set_flag() into hci_dev_test_flag() and\nhci_dev_set_flag(). Thus, in order to close this race, set HCI_MGMT flag\nafter INIT_DELAYED_WORK() completed.\n\nThis is a local fix based on mgmt_chan_list_lock. Lack of serialization\nvia hci_dev_lock() might be causing different race conditions somewhere\nelse. But a global fix based on hci_dev_lock() should deserve a future\npatch."}], "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 paths are local AF_BLUETOOTH HCI socket operations (hci_sock_sendmsg \u2192 hci_mgmt_cmd \u2192 mgmt_init_hdev racing hci_sock_bind \u2192 mgmt_index_removed), not Bluetooth radio frame processing, so this is Local rather than Adjacent.\nAC:L - An attacker who can open an HCI CONTROL socket and an HCI USER socket controls both sides of the race (sendmsg triggering mgmt_init_hdev concurrent with bind triggering mgmt_index_removed), so success does not depend on conditions outside their influence.\nPR:L - HCI_CHANNEL_CONTROL bind needs no capability, and untrusted MGMT_OP_READ_INFO reaches mgmt_init_hdev; HCI_CHANNEL_USER needs CAP_NET_ADMIN, which is commonly held by Bluetooth/network management contexts and, when uncertain, is scored Low rather than High.\nUI:N - The attacker issues the concurrent bind/sendmsg syscalls themselves; no separate victim action such as mounting a volume or confirming a prompt is required.\nS:U - Impact remains inside the host kernel Bluetooth mgmt/workqueue authority as a same-host memory-safety issue, with no VM escape, IOMMU bypass, or other security-boundary crossing.\nC:H - Racing INIT_DELAYED_WORK with cancel_delayed_work_sync on the same delayed_work/timer state can corrupt workqueue and timer-list structures, which is kernel memory corruption leverageable for arbitrary read primitives under the higher-severity rule.\nI:H - The same concurrent init-versus-cancel corruption of work/timer objects can yield heap/list write primitives suitable for control-flow hijacking beyond a pure crash.\nA:H - cancel_delayed_work_sync on uninitialized or partially initialized work triggers kernel WARNINGs (ODEBUG) and can oops/panic via corrupted timer/workqueue state, which is Availability High."}]}], "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": "3f2893d3c142986aa935821460cb3adb77044722", "lessThan": "e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6", "status": "affected", "versionType": "git"}, {"version": "3f2893d3c142986aa935821460cb3adb77044722", "lessThan": "f74ca25d6d6629ffd4fd80a1a73037253b57d06b", "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": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.3", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "6.0", "versionEndExcluding": "6.0.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6"}, {"url": "https://git.kernel.org/stable/c/f74ca25d6d6629ffd4fd80a1a73037253b57d06b"}], "title": "Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-50339", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-01-14T18:19:15.738388Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-362", "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:22:57.449Z"}}]}}

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{"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": "e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6", "status": "affected", "version": "3f2893d3c142986aa935821460cb3adb77044722", "versionType": "git"}, {"lessThan": "f74ca25d6d6629ffd4fd80a1a73037253b57d06b", "status": "affected", "version": "3f2893d3c142986aa935821460cb3adb77044722", "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": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.0.*", "status": "unaffected", "version": "6.0.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5BCD8201-B847-4442-B894-70D430128DEF", "versionEndExcluding": "6.0.3", "versionStartIncluding": "6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()\n\nsyzbot is again reporting attempt to cancel uninitialized work\nat mgmt_index_removed() [1], for setting of HCI_MGMT flag from\nmgmt_init_hdev() from hci_mgmt_cmd() from hci_sock_sendmsg() can\nrace with testing of HCI_MGMT flag from mgmt_index_removed() from\nhci_sock_bind() due to lack of serialization via hci_dev_lock().\n\nSince mgmt_init_hdev() is called with mgmt_chan_list_lock held, we can\nsafely split hci_dev_test_and_set_flag() into hci_dev_test_flag() and\nhci_dev_set_flag(). Thus, in order to close this race, set HCI_MGMT flag\nafter INIT_DELAYED_WORK() completed.\n\nThis is a local fix based on mgmt_chan_list_lock. Lack of serialization\nvia hci_dev_lock() might be causing different race conditions somewhere\nelse. But a global fix based on hci_dev_lock() should deserve a future\npatch."}], "id": "CVE-2022-50339", "lastModified": "2026-08-04T10:18:11.767", "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"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-50339", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-01-14T18:19:15.738388Z", "version": "2.0.3"}}]}, "published": "2025-09-16T17:15:32.647", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e53c6180db8dd09de94e0a3bdf4fef6f5f9dd6e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f74ca25d6d6629ffd4fd80a1a73037253b57d06b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-362"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()", "id": "2395873", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395873"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50339", "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": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2025-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50339\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50339\nhttps://lore.kernel.org/linux-cve-announce/2025091636-CVE-2022-50339-bc17@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-17T10:04:09.016900+00:00", "updated": "2025-09-17T10:04:09.016935+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}