CVE Database›Document archive›CVE-2024-50150

CVE-2024-50150

kernel: usb: typec: altmode should keep reference to parent

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · November 7, 2024

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's USB Type-C alternate mode (altmode) driver. A local attacker could exploit a use-after-free vulnerability when the altmode device release refers to its parent without maintaining a proper reference. This could lead to a system crash, resulting in a denial of service.

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

To mitigate this issue, prevent the typec kernel module from loading. This can be achieved by creating a blacklist entry for the module.

Create a file named /etc/modprobe.d/blacklist-typec.conf with the following content:

blacklist typec

After creating the file, regenerate the initramfs to ensure the blacklist is applied during boot:

For systems using Dracut:

dracut -f -v

For systems using mkinitcpio:

mkinitcpio -P

A system reboot is required for the changes to take effect. Disabling this module may impact functionality related to USB Type-C alternate modes.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-825 · Expired Pointer Dereference