2024-09-23 18:03:20 +00:00

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{
"id": "CVE-2024-46760",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-09-18T08:15:04.470",
"lastModified": "2024-09-23T16:18:28.870",
"vulnStatus": "Analyzed",
"cveTags": [],
"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."
}
],
"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",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"configurations": [
{
"nodes": [
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"operator": "OR",
"negate": false,
"cpeMatch": [
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"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.51",
"matchCriteriaId": "D4954ED0-8229-4D57-B4B3-CB5154734977"
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"references": [
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