Description

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

i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data.

The `i3c_master_bus_init` function may attach the I2C devices before the
I3C bus initialization. In this flow, the DAT `alloc_entry`` will be used
before the DAT `init`. Additionally, if the `i3c_master_bus_init` fails,
the DAT `cleanup` will execute before the device is detached, which will
execue DAT `free_entry` function. The above scenario can cause the driver
to use DAT_data when it is NULL.

Classification

CVE ID: CVE-2023-52763

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.83% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/39c71357e68e2f03766f9321b9f4882e49ff1442
https://git.kernel.org/stable/c/e64d23dc65810be4e3395d72df0c398f60c991f9
https://git.kernel.org/stable/c/3cb79a365e7cce8f121bba91312e2ddd206b9781
https://git.kernel.org/stable/c/eed74230435c61eeb58abaa275b1820e6a4b7f02
https://git.kernel.org/stable/c/b53e9758a31c683fc8615df930262192ed5f034b

Timeline