CVE-2024-46760

{"id": "CVE-2024-46760", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-09-18T08:15:04.470", "references": [{"url": "https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/adc539784c98a7cc602cbf557debfc2e7b9be8b3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c83d464b82a8ad62ec9077637f75d73fe955635a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: usb: schedule rx work after everything is set up\n\nRight now it's possible to hit NULL pointer dereference in\nrtw_rx_fill_rx_status on hw object and/or its fields because\ninitialization routine can start getting USB replies before\nrtw_dev is fully setup.\n\nThe stack trace looks like this:\n\nrtw_rx_fill_rx_status\nrtw8821c_query_rx_desc\nrtw_usb_rx_handler\n...\nqueue_work\nrtw_usb_read_port_complete\n...\nusb_submit_urb\nrtw_usb_rx_resubmit\nrtw_usb_init_rx\nrtw_usb_probe\n\nSo while we do the async stuff rtw_usb_probe continues and calls\nrtw_register_hw, which does all kinds of initialization (e.g.\nvia ieee80211_register_hw) that rtw_rx_fill_rx_status relies on.\n\nFix this by moving the first usb_submit_urb after everything\nis set up.\n\nFor me, this bug manifested as:\n[ 8.893177] rtw_8821cu 1-1:1.2: band wrong, packet dropped\n[ 8.910904] rtw_8821cu 1-1:1.2: hw->conf.chandef.chan NULL in rtw_rx_fill_rx_status\nbecause I'm using Larry's backport of rtw88 driver with the NULL\nchecks in rtw_rx_fill_rx_status."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: rtw88: usb: programar el trabajo de rx despu\u00e9s de que todo est\u00e9 configurado En este momento, es posible alcanzar la desreferencia del puntero NULL en rtw_rx_fill_rx_status en el objeto hw y/o sus campos porque la rutina de inicializaci\u00f3n puede comenzar a recibir respuestas USB antes de que rtw_dev est\u00e9 completamente configurado. El seguimiento de la pila se ve as\u00ed: rtw_rx_fill_rx_status rtw8821c_query_rx_desc rtw_usb_rx_handler ... queue_work rtw_usb_read_port_complete ... usb_submit_urb rtw_usb_rx_resubmit rtw_usb_init_rx rtw_usb_probe Entonces, mientras hacemos las cosas asincr\u00f3nicas, rtw_usb_probe contin\u00faa y llama a rtw_register_hw, que realiza todo tipo de inicializaci\u00f3n (por ejemplo, a trav\u00e9s de ieee80211_register_hw) de la que depende rtw_rx_fill_rx_status. Arregle esto moviendo el primer usb_submit_urb despu\u00e9s de que todo est\u00e9 configurado. Para m\u00ed, este error se manifest\u00f3 como: [8.893177] rtw_8821cu 1-1:1.2: banda incorrecta, paquete descartado [8.910904] rtw_8821cu 1-1:1.2: hw->conf.chandef.chan NULL en rtw_rx_fill_rx_status porque estoy usando el backport de Larry del controlador rtw88 con las comprobaciones NULL en rtw_rx_fill_rx_status."}], "lastModified": "2024-09-23T16:18:28.870", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D4954ED0-8229-4D57-B4B3-CB5154734977", "versionEndExcluding": "6.6.51"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.7"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}