cve-2024-26715
Vulnerability from cvelistv5
Published
2024-04-03 14:55
Modified
2024-11-05 09:14
Severity ?
Summary
usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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                "id": "CVE-2024-26715",
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                "timestamp": "2024-04-03T17:49:51.140719Z",
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/dwc3/gadget.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "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-\u003egadget_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-\u003egadget_driver which is not NULL and resumes execution and then\nCPU1 completes execution. CPU2 executes dwc3_disconnect_gadget where\nit checks dwc-\u003egadget_driver is already NULL because of which the\nNULL pointer deference occur."
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        "dateUpdated": "2024-11-05T09:14:24.360Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/88936ceab6b426f1312327e9ef849c215c6007a7"
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      "title": "usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26715",
    "datePublished": "2024-04-03T14:55:16.395Z",
    "dateReserved": "2024-02-19T14:20:24.160Z",
    "dateUpdated": "2024-11-05T09:14:24.360Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26715\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T15:15:53.750\",\"lastModified\":\"2024-04-03T17:24:18.150\",\"vulnStatus\":\"Awaiting Analysis\",\"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-\u003egadget_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-\u003egadget_driver which is not NULL and resumes execution and then\\nCPU1 completes execution. CPU2 executes dwc3_disconnect_gadget where\\nit checks dwc-\u003egadget_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-\u0026gt;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-\u0026gt;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-\u0026gt;gadget_driver ya sea NULL debido a lo cual se produce la deferencia del puntero NULL.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/36695d5eeeefe5a64b47d0336e7c8fc144e78182\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/57e2e42ccd3cd6183228269715ed032f44536751\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/61a348857e869432e6a920ad8ea9132e8d44c316\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/88936ceab6b426f1312327e9ef849c215c6007a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c7ebd8149ee519d27232e6e4940e9c02071b568b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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}


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