CVE-2026-90021
kernel: usb: gadget: f_midi: initialize work in f_midi_alloc()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 16, 2026
Updated · September 30, 2026
Description
A flaw was found in the Linux kernel's USB MIDI gadget driver (f_midi). When a sound card is not registered, a work queue item may not be properly initialized. This can lead to a warning and a potential system crash, resulting in a Denial of Service (DoS) for a local attacker.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-824 · Access of Uninitialized Pointer