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CVE-2026-90021

unscored Published
NVD · CVE.org

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_midi: initialize work in f_midi_alloc() f_midi_alloc initializes free_ref to 1 and it can only be incremented when a sound card is registered via f_midi_register_card(). f_midi_register_card() is only called in f_midi_bind() which actually performs INIT_WORK. If f_midi_bind() is never run, work is not initialized and the if condition in f_midi_free becomes true, this results in a warning later in __flush_work as work->func = 0. Fix this by moving INIT_WORK from f_midi_bind() to f_midi_alloc().

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 5

  1. StatusReceived → PublishedNVD modified 2026-10-21 12:49
  2. References+1 references (now 5)NVD modified 2026-10-21 13:20
  3. StatusPublished → ReceivedNVD modified 2026-10-21 13:20
  4. StatusReceived → PublishedNVD modified 2026-10-19 08:56
  5. First seenunscoredNVD modified 2026-10-19 09:18

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 5