CVE-2025-21859
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 6.1.133-1 |
| debian | bullseye | fixed | 5.10.237-1 |
| debian | forky | fixed | 6.12.17-1 |
| debian | sid | fixed | 6.12.17-1 |
| debian | trixie | fixed | 6.12.17-1 |
| linux-kernel | affected | 6.1.130 | |
| linux-kernel | 6.14 | affected | |
References
- https://git.kernel.org/stable/c/1f10923404705a94891e612dff3b75e828a78368
- https://git.kernel.org/stable/c/24a942610ee9bafb2692a456ae850c5b2e409b05
- https://git.kernel.org/stable/c/4ab37fcb42832cdd3e9d5e50653285ca84d6686f
- https://git.kernel.org/stable/c/727dee0857946b85232526de4f5a957fe163e89a
- https://git.kernel.org/stable/c/8aa6b4be1f4efccbfc533e6ec8841d26e4fa8dba
- https://git.kernel.org/stable/c/b09957657d7767d164b3432af2129bd72947553c
- https://git.kernel.org/stable/c/deeee3adb2c01eedab32c3b4519337689ad02e8a
- https://git.kernel.org/stable/c/e9fec6f42c45db2f62dc373fb1a10d2488c04e79
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://www.suse.com/security/cve/CVE-2025-21859.html
- https://security-tracker.debian.org/tracker/CVE-2025-21859
CWEs
CWE-667
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.