CVE-2025-21859
Published: March 13, 2025Last modified: March 13, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.130-r0) |
| Stream | linux-lts | Fixed (6.6.82-r0) |
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