CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the USB gadget subsystem, specifically within the UVC (USB Video Class) function, where improper handling of pointers can lead to use-after-free (UAF) conditions. This flaw can potentially allow an attacker to exploit dangling pointers, leading to memory corruption and instability in affected systems. Organizations using Linux-based systems that implement USB video functionality should prioritize this issue to mitigate potential security risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind() In uvc_function_bind() error path, we use usb_ep_free_request which uses uvc->control_req but does not set it to NULL afterwards. Thus, uvc->control_req is a dangling pointer causing a UAF. Also we do not set the uvc->control_buf pointer to NULL after freeing it, which is another dangling pointer. Fix it by setting uvc->control_req to NULL after we run usb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the same for uvc_function_unbind().