cve-2024-38633
Vulnerability from cvelistv5
Published
2024-06-21 10:18
Modified
2024-11-05 09:31
Severity ?
EPSS score ?
Summary
serial: max3100: Update uart_driver_registered on driver removal
References
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: max3100: Update uart_driver_registered on driver removal\n\nThe removal of the last MAX3100 device triggers the removal of\nthe driver. However, code doesn\u0027t update the respective global\nvariable and after insmod \u2014 rmmod \u2014 insmod cycle the kernel\noopses:\n\n max3100 spi-PRP0001:01: max3100_probe: adding port 0\n BUG: kernel NULL pointer dereference, address: 0000000000000408\n ...\n RIP: 0010:serial_core_register_port+0xa0/0x840\n ...\n max3100_probe+0x1b6/0x280 [max3100]\n spi_probe+0x8d/0xb0\n\nUpdate the actual state so next time UART driver will be registered\nagain.\n\nHugo also noticed, that the error path in the probe also affected\nby having the variable set, and not cleared. Instead of clearing it\nmove the assignment after the successfull uart_register_driver() call."
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However, code doesn\u0027t update the respective global\\nvariable and after insmod \u2014 rmmod \u2014 insmod cycle the kernel\\noopses:\\n\\n max3100 spi-PRP0001:01: max3100_probe: adding port 0\\n BUG: kernel NULL pointer dereference, address: 0000000000000408\\n ...\\n RIP: 0010:serial_core_register_port+0xa0/0x840\\n ...\\n max3100_probe+0x1b6/0x280 [max3100]\\n spi_probe+0x8d/0xb0\\n\\nUpdate the actual state so next time UART driver will be registered\\nagain.\\n\\nHugo also noticed, that the error path in the probe also affected\\nby having the variable set, and not cleared. Instead of clearing it\\nmove the assignment after the successfull uart_register_driver() call.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: max3100: actualizaci\u00f3n uart_driver_registered al eliminar el controlador La eliminaci\u00f3n del \u00faltimo dispositivo MAX3100 desencadena la eliminaci\u00f3n del controlador. Sin embargo, el c\u00f3digo no actualiza la variable global respectiva y despu\u00e9s del ciclo insmod \u2014 rmmod \u2014 insmod, el kernel falla: max3100 spi-PRP0001:01: max3100_probe: agregando el puerto 0 ERROR: desreferencia del puntero NULL del kernel, direcci\u00f3n: 0000000000000408... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Actualice el estado actual para que la pr\u00f3xima vez el controlador UART se registre nuevamente. Hugo tambi\u00e9n not\u00f3 que la ruta de error en la sonda tambi\u00e9n se ve\u00eda afectada por tener la variable configurada y no borrada. 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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.