{
  "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": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/25eaef533bf3ccc6fee5067aac16f41f280e343e",
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