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 file do check for NULL return values. If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub->ports[udev->portnum - 1] will cause a null pointer dereference.

Reserved 2025-04-16 | Published 2025-07-03 | Updated 2025-07-03 | Assigner Linux

Product status

Default status
unaffected

f1bfb4a6fed64de1771b43a76631942279851744 before 8fa544bff8466062e42949c93f3e528f4be5624b
affected

f1bfb4a6fed64de1771b43a76631942279851744 before e3d530173b70514d4390a94f9f979acad689b70a
affected

f1bfb4a6fed64de1771b43a76631942279851744 before 73fb0ec9436ae87bcae067ce35d6cdd72bade86c
affected

Default status
affected

6.12
affected

Any version before 6.12
unaffected

6.12.34
unaffected

6.15.3
unaffected

6.16-rc1
unaffected

References

git.kernel.org/...c/8fa544bff8466062e42949c93f3e528f4be5624b

git.kernel.org/...c/e3d530173b70514d4390a94f9f979acad689b70a

git.kernel.org/...c/73fb0ec9436ae87bcae067ce35d6cdd72bade86c

cve.org (CVE-2025-38134)

nvd.nist.gov (CVE-2025-38134)

Download JSON