{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50833", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.132Z", "datePublished": "2025-12-30T12:10:54.342Z", "dateUpdated": "2025-12-30T12:10:54.342Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-30T12:10:54.342Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works\n\nsyzbot is reporting attempt to schedule hdev->cmd_work work from system_wq\nWQ into hdev->workqueue WQ which is under draining operation [1], for\ncommit c8efcc2589464ac7 (\"workqueue: allow chained queueing during\ndestruction\") does not allow such operation.\n\nThe check introduced by commit 877afadad2dce8aa (\"Bluetooth: When HCI work\nqueue is drained, only queue chained work\") was incomplete.\n\nUse hdev->workqueue WQ when queuing hdev->{cmd,ncmd}_timer works because\nhci_{cmd,ncmd}_timeout() calls queue_work(hdev->workqueue). Also, protect\nthe queuing operation with RCU read lock in order to avoid calling\nqueue_delayed_work() after cancel_delayed_work() completed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bluetooth/hci_core.c", "net/bluetooth/hci_event.c"], "versions": [{"version": "3b382555706558f5c0587862b6dc03e96a252bba", "lessThan": "c4635cf3d845a7324c25c52d549b70c8bd7ad4c7", "status": "affected", "versionType": "git"}, {"version": "877afadad2dce8aae1f2aad8ce47e072d4f6165e", "lessThan": "3c6b036fe5c8ed8b6c4cbdc03605929882907ef0", "status": "affected", "versionType": "git"}, {"version": "877afadad2dce8aae1f2aad8ce47e072d4f6165e", "lessThan": "deee93d13d385103205879a8a0915036ecd83261", "status": "affected", "versionType": "git"}, {"version": "4bf367fa1fefabdf14938d0ac9ed60020389112e", "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_core.c", "net/bluetooth/hci_event.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.15", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.1", "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": "5.19.2", "versionEndExcluding": "5.19.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.0.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c4635cf3d845a7324c25c52d549b70c8bd7ad4c7"}, {"url": "https://git.kernel.org/stable/c/3c6b036fe5c8ed8b6c4cbdc03605929882907ef0"}, {"url": "https://git.kernel.org/stable/c/deee93d13d385103205879a8a0915036ecd83261"}], "title": "Bluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works\n\nsyzbot is reporting attempt to schedule hdev->cmd_work work from system_wq\nWQ into hdev->workqueue WQ which is under draining operation [1], for\ncommit c8efcc2589464ac7 (\"workqueue: allow chained queueing during\ndestruction\") does not allow such operation.\n\nThe check introduced by commit 877afadad2dce8aa (\"Bluetooth: When HCI work\nqueue is drained, only queue chained work\") was incomplete.\n\nUse hdev->workqueue WQ when queuing hdev->{cmd,ncmd}_timer works because\nhci_{cmd,ncmd}_timeout() calls queue_work(hdev->workqueue). Also, protect\nthe queuing operation with RCU read lock in order to avoid calling\nqueue_delayed_work() after cancel_delayed_work() completed."}], "id": "CVE-2022-50833", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:15:57.810", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c6b036fe5c8ed8b6c4cbdc03605929882907ef0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4635cf3d845a7324c25c52d549b70c8bd7ad4c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/deee93d13d385103205879a8a0915036ecd83261"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: Bluetooth: use hdev->workqueue when queuing hdev->{cmd,ncmd}_timer works", "id": "2426258", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426258"}, "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-2022-50833", "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": "Under investigation", "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": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50833\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50833\nhttps://lore.kernel.org/linux-cve-announce/2025123017-CVE-2022-50833-92af@gregkh/T"], "threat_severity": "Important"}

{}