CVE-2026-93122 Linux Kernel usb gadget UAC - Out of Bounds Write

Linux kernel usb gadget UAC1 and UAC2 configfs rate-list attributes contain a buffer overflow caused by lack of validation on rate list length before storing, letting attackers write out-of-bounds in fixed-size arrays, exploit requires writing more than ten rates.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Write
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix for rate list length validation.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs