CVE-2025-38134
BaseFortify
Publication date: 2025-07-03
Last updated on: 2025-11-20
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a null pointer dereference in the Linux kernel's USB ACPI code, specifically in the function usb_acpi_add_usb4_devlink(). It occurs because the function usb_hub_to_struct_hub() can return NULL in certain scenarios like during hub driver unbind or teardown race conditions. When this happens, subsequent code tries to access hub->ports[udev->portnum - 1] without checking if hub is NULL, leading to a null pointer dereference and potential kernel crash.
How can this vulnerability impact me? :
This vulnerability can cause a null pointer dereference in the Linux kernel, which may lead to a kernel crash or system instability when USB hub devices are unbound or torn down under certain race conditions.