CVE-2023-52861: drm: bridge: it66121: Fix invalid connector dereference

Description

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

drm: bridge: it66121: Fix invalid connector dereference

Fix the NULL pointer dereference when no monitor is connected, and the
sound card is opened from userspace.

Instead return an empty buffer (of zeroes) as the EDID information to
the sound framework if there is no connector attached.

Classification

CVE ID: CVE-2023-52861

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.81% (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/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331
https://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc
https://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86
https://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd

Timeline