Security Advisory

CVE-2025-21859

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-03-12 09:42:12

Last updated 2026-05-12 12:04:07

Assigner Linux

State PUBLISHED

Description

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

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