VYPR
Medium severity5.5NVD Advisory· Published Jul 25, 2026· Updated Sep 3, 2026

CVE-2026-64345

CVE-2026-64345

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.

Affected products

16

Patches

Vulnerability mechanics

References

6

News mentions

0

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