CVE-2025-38134

Description

In the Linux kernel, the following vulnerability has been resolved:usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()As demonstrated by the fix for update_port_device_state,commit 12783c0b9e2c (usb: core: Prevent null pointer dereference in update_port_device_state),usb_hub_to_struct_hub() can return null in certain scenarios,such as during hub driver unbind or teardown race conditions,even if the underlying usb_device structure exists.Plus, all other places that call usb_hub_to_struct_hub() in the same filedo check for null return values.If usb_hub_to_struct_hub() returns null, the subsequent access tohub->ports[udev->portnum - 1] will cause a null pointer dereference.

Risk Information

Base Score

5.5

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.013

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234