Security Advisory

CVE-2026-64345

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-25 08:50:07

Last updated 2026-07-25 08:50:07

Assigner Linux

CVSS score not scored

State PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_printer: take kref only for successful open printer_open() returns -EBUSY when the character device is already open, but it increments dev->kref regardless of the return value. VFS does not call ->release() for a failed open, so every rejected second open permanently leaks one reference. Move kref_get() into the successful-open branch.

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