CVE-2026-68369

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

Description An issue exists in the usb gadget printer component where the printer read() function uses a single variable to track both the requested copy size and the actual bytes copied to user space. Because copy to user() returns the number of bytes not copied, a failure to copy any data results in a computed copied length of zero. This leaves the len, buf, current rx bytes, and current rx buf variables unchanged. If RX data is available but the user buffer remains unwritable, the read loop can repeat indefinitely, leading to an infinite loop.

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