CVE-2025-21859
MEDIUM severity · CVSS 5.5 · CWE-667
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1f10923404705a94891e612dff3b75e828a78368 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1f10923404705a94891e612dff3b75e828a78368Patch
- https://git.kernel.org/stable/c/24a942610ee9bafb2692a456ae850c5b2e409b05Patch
- https://git.kernel.org/stable/c/4ab37fcb42832cdd3e9d5e50653285ca84d6686fPatch
- https://git.kernel.org/stable/c/727dee0857946b85232526de4f5a957fe163e89aPatch
- https://git.kernel.org/stable/c/8aa6b4be1f4efccbfc533e6ec8841d26e4fa8dbaPatch
- https://git.kernel.org/stable/c/b09957657d7767d164b3432af2129bd72947553cPatch
- https://git.kernel.org/stable/c/deeee3adb2c01eedab32c3b4519337689ad02e8aPatch
- https://git.kernel.org/stable/c/e9fec6f42c45db2f62dc373fb1a10d2488c04e79Patch