CVE-2025-21859

USB: gadget: f_midi: f_midi_complete to call queue_work

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/727dee0857946b85232526de4f5a957fe163e89a patch
https://git.kernel.org/stable/c/1f10923404705a94891e612dff3b75e828a78368 patch
https://git.kernel.org/stable/c/b09957657d7767d164b3432af2129bd72947553c patch
https://git.kernel.org/stable/c/24a942610ee9bafb2692a456ae850c5b2e409b05 patch
https://git.kernel.org/stable/c/deeee3adb2c01eedab32c3b4519337689ad02e8a patch
https://git.kernel.org/stable/c/e9fec6f42c45db2f62dc373fb1a10d2488c04e79 patch
https://git.kernel.org/stable/c/8aa6b4be1f4efccbfc533e6ec8841d26e4fa8dba patch
https://git.kernel.org/stable/c/4ab37fcb42832cdd3e9d5e50653285ca84d6686f patch

Frequently Asked Questions

What is the severity of CVE-2025-21859?
CVE-2025-21859 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21859?
To fix CVE-2025-21859, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21859 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21859 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21859?
CVE-2025-21859 affects Linux Linux, Linux Linux.
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