CVE-2022-48973
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
gpio: amd8111: Fix PCI device reference count leak
for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL.
If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() after the 'out' label. Since pci_dev_put() can handle NULL input parameter, there is no problem for the 'Device not found' branch. For the normal path, add pci_dev_put() in amd_gpio_exit().
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 13
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-Other
Referencias
- https://git.kernel.org/stable/c/4271515f189bd5fe2ec86b4089dab7cb804625d2
- https://git.kernel.org/stable/c/45fecdb9f658d9c82960c98240bc0770ade19aca
- https://git.kernel.org/stable/c/4749c5cc147c9860b96db1e71cc36d1de1bd3f59
- https://git.kernel.org/stable/c/48bd5d3801f6b67cc144449d434abbd5043a6d37
- https://git.kernel.org/stable/c/5ee6413d3dd972930af787b2c0c7aaeb379fa521
- https://git.kernel.org/stable/c/71d591ef873f9ebb86cd8d053b3caee785b2de6a
- https://git.kernel.org/stable/c/b2bc053ebbba57a06fa655db5ea796de2edce445
- https://git.kernel.org/stable/c/e364ce04d8f840478b09eee57b614de7cf1e743e
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: amd8111: Fix PCI device reference count leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. Add the missing\npci_dev_put() after the 'out' label. Since pci_dev_put() can handle NULL\ninput parameter, there is no problem for the 'Device not found' branch.\nFor the normal path, add pci_dev_put() in amd_gpio_exit()."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gpio: amd8111: Se solucionó la fuga de recuento de referencia del dispositivo PCI. for_each_pci_dev() se implementa mediante pci_get_device(). El comentario de pci_get_device() dice que aumentará el recuento de referencia para el pci_dev devuelto y también disminuirá el recuento de referencia para el pci_dev de entrada @from si no es NULL. Si interrumpimos el bucle for_each_pci_dev() con pdev no NULL, debemos llamar a pci_dev_put() para disminuir el recuento de referencia. Agregue el pci_dev_put() faltante después de la etiqueta 'out'. Dado que pci_dev_put() puede manejar el parámetro de entrada NULL, no hay ningún problema para la rama 'Dispositivo no encontrado'. Para la ruta normal, agregue pci_dev_put() en amd_gpio_exit()."
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