CyberRota Analysis
AI-GeneratedThe cros_usbpd-charger driver in the Linux kernel is vulnerable due to inadequate validation of the charger port count reported by the embedded controller, allowing for potential out-of-bounds writes and memory corruption. This could be exploited by a malicious embedded controller to manipulate the system's behavior, leading to instability or unauthorized access. Organizations using affected Linux systems, particularly those relying on USB Power Delivery, should prioritize applying updates to mitigate this risk.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS Currently the cros_usbpd-charger driver probe iterates based on raw charger port count returned by the embedded controller. The only check is against the number of USB PD ports which the embedded controller also defines. A malicious embedded controller could return an inaccurate port count (up to 255) resulting in an out of bounds write and subsequent memory corruption. Update helper functions in cros_usbpd-charger to limit port counts to EC_USB_PD_MAX_PORTS.