FKIE_CVE-2024-36898

Vulnerability from fkie_nvd - Published: 2024-05-30 16:15 - Updated: 2025-09-18 14:48
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: gpiolib: cdev: fix uninitialised kfifo If a line is requested with debounce, and that results in debouncing in software, and the line is subsequently reconfigured to enable edge detection then the allocation of the kfifo to contain edge events is overlooked. This results in events being written to and read from an uninitialised kfifo. Read events are returned to userspace. Initialise the kfifo in the case where the software debounce is already active.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1a51e24404d77bb3307c1e39eee0d8e86febb1a5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/883e4bbf06eb5fb7482679e4edb201093e9f55a2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd7139a70ee8d8ea872b223e043730cf6f5e2b0ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee0166b637a5e376118e9659e5b4148080f1d27ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1a51e24404d77bb3307c1e39eee0d8e86febb1a5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/883e4bbf06eb5fb7482679e4edb201093e9f55a2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bd7139a70ee8d8ea872b223e043730cf6f5e2b0ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ee0166b637a5e376118e9659e5b4148080f1d27ePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
linux linux_kernel 6.9
To clipboard 

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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: cdev: fix uninitialised kfifo\n\nIf a line is requested with debounce, and that results in debouncing\nin software, and the line is subsequently reconfigured to enable edge\ndetection then the allocation of the kfifo to contain edge events is\noverlooked.  This results in events being written to and read from an\nuninitialised kfifo.  Read events are returned to userspace.\n\nInitialise the kfifo in the case where the software debounce is\nalready active."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gpiolib: cdev: corrige kfifo no inicializado Si se solicita una l\u00ednea con antirrebote, y eso resulta en un antirrebote en el software, y la l\u00ednea se reconfigura posteriormente para habilitar la detecci\u00f3n de bordes, entonces se realiza la asignaci\u00f3n del Se pasa por alto kfifo para contener eventos de borde. Esto da como resultado que los eventos se escriban y lean desde un kfifo no inicializado. Los eventos le\u00eddos se devuelven al espacio de usuario. Inicialice el kfifo en el caso de que el software antirrebote ya est\u00e9 activo."
    }
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  "id": "CVE-2024-36898",
  "lastModified": "2025-09-18T14:48:06.587",
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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  "published": "2024-05-30T16:15:13.423",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.