CVE-2026-74456

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A double free issue exists in the peak usb start() function. When an RX URB transfer buffer is allocated using kmalloc() and flagged with URB FREE BUFFER, the usb free urb() function is designed to automatically release the buffer. However, if usb submit urb() fails, the error handling path explicitly calls kfree(buf) before calling usb free urb(urb), leading to the same buffer being freed twice.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.