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.
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Affected Vendors & Products
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Fri, 04 Jul 2025 00:30:00 +0000
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cvssV3_1
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Thu, 03 Jul 2025 09:00:00 +0000
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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. | |
Title | usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-07-03T08:35:37.674Z
Updated: 2025-07-28T04:13:10.210Z
Reserved: 2025-04-16T04:51:23.987Z
Link: CVE-2025-38134

No data.

Status : Awaiting Analysis
Published: 2025-07-03T09:15:27.837
Modified: 2025-07-03T15:13:53.147
Link: CVE-2025-38134
