fkie_cve-2025-21783
Vulnerability from fkie_nvd
Published
2025-02-27 03:15
Modified
2025-10-01 20:18
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: gpiolib: Fix crash on error in gpiochip_get_ngpios() The gpiochip_get_ngpios() uses chip_*() macros to print messages. However these macros rely on gpiodev to be initialised and set, which is not the case when called via bgpio_init(). In such a case the printing messages will crash on NULL pointer dereference. Replace chip_*() macros by the respective dev_*() ones to avoid such crash.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4fMailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44Mailing List, Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68Mailing List, Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: Fix crash on error in gpiochip_get_ngpios()\n\nThe gpiochip_get_ngpios() uses chip_*() macros to print messages.\nHowever these macros rely on gpiodev to be initialised and set,\nwhich is not the case when called via bgpio_init(). In such a case\nthe printing messages will crash on NULL pointer dereference.\nReplace chip_*() macros by the respective dev_*() ones to avoid\nsuch crash."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gpiolib: Se corrige el fallo en caso de error en gpiochip_get_ngpios(). Gpiochip_get_ngpios() utiliza macros chip_*() para imprimir mensajes. Sin embargo, estas macros dependen de que gpiodev se inicialice y configure, lo que no sucede cuando se llama a trav\u00e9s de bgpio_init(). En tal caso, la impresi\u00f3n de mensajes se bloquear\u00e1 en caso de desreferencia de puntero NULL. Reemplace las macros chip_*() por las respectivas dev_*() para evitar dicho bloqueo."
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  "id": "CVE-2025-21783",
  "lastModified": "2025-10-01T20:18:24.990",
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