{
  "id": "CVE-2021-47273",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-21T15:15:15.760",
  "lastModified": "2024-12-26T20:48:47.207",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3-meson-g12a: fix usb2 PHY glue init when phy0 is disabled\n\nWhen only PHY1 is used (for example on Odroid-HC4), the regmap init code\nuses the usb2 ports when doesn't initialize the PHY1 regmap entry.\n\nThis fixes:\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000020\n...\npc : regmap_update_bits_base+0x40/0xa0\nlr : dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8\n...\nCall trace:\nregmap_update_bits_base+0x40/0xa0\ndwc3_meson_g12a_usb2_init_phy+0x4c/0xf8\ndwc3_meson_g12a_usb2_init+0x7c/0xc8\ndwc3_meson_g12a_usb_init+0x28/0x48\ndwc3_meson_g12a_probe+0x298/0x540\nplatform_probe+0x70/0xe0\nreally_probe+0xf0/0x4d8\ndriver_probe_device+0xfc/0x168\n..."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: dwc3-meson-g12a: repara el init de glue PHY de usb2 cuando phy0 est\u00e1 deshabilitado. Cuando solo se usa PHY1 (por ejemplo, en Odroid-HC4), el c\u00f3digo de inicio de regmap usa usb2 puertos cuando no inicializa la entrada del mapa de registro PHY1. Esto soluciona: No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000020... pc: regmap_update_bits_base+0x40/0xa0 lr: dwc3_meson_g12a_usb2_init_phy+0x4c/0xf8... Seguimiento de llamadas: regmap_update_bits_base+0x40/0xa0 g12a_usb2_init_phy+0x4c/0xf8 dwc3_meson_g12a_usb2_init+0x7c /0xc8 dwc3_meson_g12a_usb_init+0x28/0x48 dwc3_meson_g12a_probe+0x298/0x540 platform_probe+0x70/0xe0 Actually_probe+0xf0/0x4d8 driver_probe_device+0xfc/0x168 ..."
    }
  ],
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          "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
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          "value": "CWE-476"
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