CVE-2023-52766: i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler

Description

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

i3c: mipi-i3c-hci: Fix out of bounds access in hci_dma_irq_handler

Do not loop over ring headers in hci_dma_irq_handler() that are not
allocated and enabled in hci_dma_init(). Otherwise out of bounds access
will occur from rings->headers[i] access when i >= number of allocated
ring headers.

Classification

CVE ID: CVE-2023-52766

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.06% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/d23ad76f240c0f597b7a9eb79905d246f27d40df
https://git.kernel.org/stable/c/8be39f66915b40d26ea2c18ba84b5c3d5da6809b
https://git.kernel.org/stable/c/7c2b91b30d74d7c407118ad72502d4ca28af1af6
https://git.kernel.org/stable/c/4c86cb2321bd9c72d3b945ce7f747961beda8e65
https://git.kernel.org/stable/c/45a832f989e520095429589d5b01b0c65da9b574

Timeline