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CVE-2024-45828

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request

Bus cleanup path in DMA mode may trigger a RING_OP_STAT interrupt when the ring is being stopped. Depending on timing between ring stop request completion, interrupt handler removal and code execution this may lead to a NULL pointer dereference in hci_dma_irq_handler() if it gets to run after the io_data pointer is set to NULL in hci_dma_cleanup().

Prevent this my masking the ring interrupts before ring stop request.

CVSS

Probabilidad de explotación (EPSS)

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)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: mipi-i3c-hci: Mask ring interrupts before ring stop request\n\nBus cleanup path in DMA mode may trigger a RING_OP_STAT interrupt when\nthe ring is being stopped. Depending on timing between ring stop request\ncompletion, interrupt handler removal and code execution this may lead\nto a NULL pointer dereference in hci_dma_irq_handler() if it gets to run\nafter the io_data pointer is set to NULL in hci_dma_cleanup().\n\nPrevent this my masking the ring interrupts before ring stop request."
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i3c: mipi-i3c-hci: Enmascarar interrupciones del anillo antes de la solicitud de detención del anillo La ruta de desinfección del bus en modo DMA puede activar una interrupción RING_OP_STAT cuando se detiene el anillo. Dependiendo del tiempo entre la finalización de la solicitud de detención del anillo, la eliminación del controlador de interrupciones y la ejecución del código, esto puede provocar una desreferencia de puntero NULL en hci_dma_irq_handler() si se ejecuta después de que el puntero io_data se establezca en NULL en hci_dma_cleanup(). Evite esto enmascarando las interrupciones del anillo antes de la solicitud de detención del anillo."
    }
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  "lastModified": "2026-06-17T07:54:53.317",
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