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CVE-2024-56698

Estado: ModificadaMedia (5.5)—

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

usb: dwc3: gadget: Fix looping of queued SG entries

The dwc3_request->num_queued_sgs is decremented on completion. If a partially completed request is handled, then the dwc3_request->num_queued_sgs no longer reflects the total number of num_queued_sgs (it would be cleared).

Correctly check the number of request SG entries remained to be prepare and queued. Failure to do this may cause null pointer dereference when accessing non-existent SG entry.

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\nusb: dwc3: gadget: Fix looping of queued SG entries\n\nThe dwc3_request->num_queued_sgs is decremented on completion. If a\npartially completed request is handled, then the\ndwc3_request->num_queued_sgs no longer reflects the total number of\nnum_queued_sgs (it would be cleared).\n\nCorrectly check the number of request SG entries remained to be prepare\nand queued. Failure to do this may cause null pointer dereference when\naccessing non-existent SG entry."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: dwc3: gadget: Se corrige el bucle de entradas SG en cola. El dwc3_request->num_queued_sgs se reduce al completarse. Si se gestiona una solicitud parcialmente completada, entonces el dwc3_request->num_queued_sgs ya no refleja el número total de num_queued_sgs (se borraría). Verifique correctamente el número de entradas SG de solicitud que quedan por preparar y poner en cola. Si no lo hace, puede causar una desreferencia de puntero nulo al acceder a una entrada SG inexistente."
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