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CVE-2025-21859

Description

In the Linux kernel, the following vulnerability has been resolved:USB: gadget: f_midi: f_midi_complete to call queue_workWhen using USB MIDI, a lock is attempted to be acquired twice through are-entrant call to f_midi_transmit, causing a deadlock.Fix it by using queue_work() to schedule the inner f_midi_transmit() viaa high priority work queue from the completion handler.

POC

Reference

No PoCs from references.

Github

- https://github.com/fkie-cad/nvd-json-data-feeds

- https://github.com/w4zu/Debian_security