CVE-2026-68372
kernel: usb: core: port: Deattach Type-C connector on component unbind
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 10, 2026
Updated · November 1, 2026
Description
A flaw was found in the Linux kernel's USB Type-C port handling. A local user, by unplugging a Thunderbolt dock, can trigger a race condition during the device teardown process. This can lead to a use-after-free vulnerability, where the system attempts to access memory that has already been released. Exploitation of this flaw could result in system instability, denial of service, or potentially lead to memory corruption.
Statement
This vulnerability is rated as having Moderate impact for Red Hat Enterprise Linux because exploitation requires physical access to detach Thunderbolt hardware or specific local conditions, limiting the impact primarily to a denial of service. Standard enterprise server deployments are generally unaffected in practice since hot-unplugging Type-C docking stations is primarily confined to mobile or desktop environments. While a race condition during device removal can cause kernel memory corruption or an unexpected system crash, remote exploitation is not possible.
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
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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-825 · Expired Pointer Dereference