nvd-json-data-feeds/CVE-2024/CVE-2024-267xx/CVE-2024-26715.json

{
  "id": "CVE-2024-26715",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-04-03T15:15:53.750",
  "lastModified": "2025-01-07T20:25:50.327",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend\n\nIn current scenario if Plug-out and Plug-In performed continuously\nthere could be a chance while checking for dwc->gadget_driver in\ndwc3_gadget_suspend, a NULL pointer dereference may occur.\n\nCall Stack:\n\n\tCPU1:                           CPU2:\n\tgadget_unbind_driver            dwc3_suspend_common\n\tdwc3_gadget_stop                dwc3_gadget_suspend\n                                        dwc3_disconnect_gadget\n\nCPU1 basically clears the variable and CPU2 checks the variable.\nConsider CPU1 is running and right before gadget_driver is cleared\nand in parallel CPU2 executes dwc3_gadget_suspend where it finds\ndwc->gadget_driver which is not NULL and resumes execution and then\nCPU1 completes execution. CPU2 executes dwc3_disconnect_gadget where\nit checks dwc->gadget_driver is already NULL because of which the\nNULL pointer deference occur."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: usb: dwc3: gadget: corrige la desreferencia del puntero NULL en dwc3_gadget_suspend En el escenario actual, si el Plug-out y el Plug-In se ejecutan continuamente, podr\u00eda haber una posibilidad al verificar dwc->gadget_driver en dwc3_gadget_suspend, puede ocurrir una desreferencia del puntero NULL. Pila de llamadas: CPU1: CPU2: gadget_unbind_driver dwc3_suspend_common dwc3_gadget_stop dwc3_gadget_suspend dwc3_disconnect_gadget CPU1 b\u00e1sicamente borra la variable y CPU2 verifica la variable. Considere que CPU1 se est\u00e1 ejecutando y justo antes de que se borre gadget_driver y en paralelo CPU2 ejecuta dwc3_gadget_suspend donde encuentra dwc->gadget_driver que no es NULL y reanuda la ejecuci\u00f3n y luego CPU1 completa la ejecuci\u00f3n. CPU2 ejecuta dwc3_disconnect_gadget donde verifica que dwc->gadget_driver ya sea NULL debido a lo cual se produce la deferencia del puntero NULL."
    }
  ],
  "metrics": {
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        "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
      }
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  "weaknesses": [
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      "type": "Primary",
      "description": [
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          "value": "CWE-476"
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