CyberRota Analysis
AI-GeneratedThe ALSA mpu401 driver in the Linux kernel is vulnerable due to inadequate validation of the card index during device probing, which can lead to out-of-bounds access if an invalid index is provided through the sysfs interface. This flaw could potentially allow an attacker to exploit the system, resulting in unauthorized access or instability. Linux system administrators and developers utilizing the ALSA subsystem should prioritize addressing this vulnerability to ensure system integrity and security.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: mpu401: Check card index validity at probe mpu401 driver blindly trusts that the given devptr->id value is within the proper card index range at probe. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.