CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of the MCP2221 HID device, specifically during the cleanup process where device I/O operations may not be properly halted before hardware teardown. This could lead to a use-after-free condition, potentially allowing an attacker to exploit the race condition between incoming HID reports and device removal. Organizations utilizing Linux systems with MCP2221 devices should prioritize addressing this issue to mitigate risks associated with device management and data integrity.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: stop device IO before hid_hw_stop Quiesce device IO at the start of the devm cleanup callback mcp2221_hid_unregister() so that incoming HID reports cannot race with hardware teardown during probe failure or device removal, addressing a potential use-after-free. Guard the call to hid_device_io_stop() with io_started. On normal removal hid_device_remove() has already cleared io_started before the devres group is released, so an unconditional call would otherwise hit the !io_started path and emit a spurious "io already stopped" warning on every removal. The guard preserves the probe-failure balancing, where io_started is still set after hid_device_io_start(), while staying silent on the normal removal path.