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CVE-2026-64455

kernel: USB: chaoskey: Fix slab-use-after-free in chaoskey_release()

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Severity

Low

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · October 16, 2026

Description

A flaw was found in the Linux kernel's chaoskey driver. A local user could trigger a use-after-free vulnerability by closing the device file after the associated USB device has been unplugged. This could lead to a system crash due to memory corruption when a debugging statement attempts to access deallocated memory.

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 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-825 · Expired Pointer Dereference