{ "id": "CVE-2024-41063", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-07-29T15:15:14.243", "lastModified": "2024-11-21T09:32:10.187", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_core: cancel all works upon hci_unregister_dev()\n\nsyzbot is reporting that calling hci_release_dev() from hci_error_reset()\ndue to hci_dev_put() from hci_error_reset() can cause deadlock at\ndestroy_workqueue(), for hci_error_reset() is called from\nhdev->req_workqueue which destroy_workqueue() needs to flush.\n\nWe need to make sure that hdev->{rx_work,cmd_work,tx_work} which are\nqueued into hdev->workqueue and hdev->{power_on,error_reset} which are\nqueued into hdev->req_workqueue are no longer running by the moment\n\n destroy_workqueue(hdev->workqueue);\n destroy_workqueue(hdev->req_workqueue);\n\nare called from hci_release_dev().\n\nCall cancel_work_sync() on these work items from hci_unregister_dev()\nas soon as hdev->list is removed from hci_dev_list." }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: hci_core: cancelar todos los trabajos en hci_unregister_dev() syzbot informa que llamar a hci_release_dev() desde hci_error_reset() debido a hci_dev_put() desde hci_error_reset() puede causar un punto muerto en destroy_workqueue( ), porque hci_error_reset() se llama desde hdev->req_workqueue y destroy_workqueue() necesita vaciarse. Necesitamos asegurarnos de que hdev->{rx_work,cmd_work,tx_work} que est\u00e1n en cola en hdev->workqueue y hdev->{power_on,error_reset} que est\u00e1n en cola en hdev->req_workqueue ya no se est\u00e9n ejecutando en el momento destroy_workqueue( hdev->cola de trabajo); destroy_workqueue(hdev->req_workqueue); se llaman desde hci_release_dev(). Llame a cancel_work_sync() en estos elementos de trabajo desde hci_unregister_dev() tan pronto como se elimine hdev->list de hci_dev_list." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-667" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.19.319", "matchCriteriaId": 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