CVE-2026-89733 Linux kernel usb gadget uvc - Use After Free

Linux kernel usb gadget uvc contains a use-after-free caused by dangling pointers in uvc_function_bind() and uvc_function_unbind(), letting attackers potentially cause memory corruption, exploit requires local code execution.

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
Use After Free
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

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

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