CVE-2024-26716: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: usb: core: Prevent null pointer dereference in update_port_device_state Currently, the function update_port_device_state gets the usb_hub from udev->parent by calling usb_hub_to_struct_hub. However, in case the actconfig or the maxchild is 0, the usb_hub would be NULL and upon further accessing to get port_dev would result in null pointer dereference. Fix this by introducing an if check after the usb_hub is populated.

Affected products

• Linux Linux Kernel: from 6.5, before 6.6.18 (fixed in 6.6.18); from 6.7, before 6.7.6 (fixed in 6.7.6); version 6.8 only

Published 2024-04-03. Last modified 2026-06-17.