CVE-2022-4744

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-460 CWE-415

Affected software

No affected versions have been published.

Timeline

Published: Mar 30, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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