VULNERABILITY INTELLIGENCE

CVE-2026-64345

CVSS score5.5 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-07-25
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references