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CVE-2025-22051: staging: gpib: Fix Oops after disconnect in agilent usb

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-16 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: staging: gpib: Fix Oops after disconnect in agilent usb If the agilent usb dongle is disconnected subsequent calls to the driver cause a NULL dereference Oops as the bus_interface is set to NULL on disconnect. This problem was introduced by setting usb_dev from the bus_interface for dev_xxx messages. Previously bus_interface was checked for NULL only in the functions directly calling usb_fill_bulk_urb or usb_control_msg. Check for valid bus_interface on all interface entry points and return -ENODEV if it is NULL.

Affected products

• Linux kernel: from 6.13 before 6.13.11; from 6.14 before 6.14.2 — fixed in 6.13.11, 6.14.2

How to fix

Upgrade to a fixed version: Linux kernel 6.13.11, 6.14.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/50ef6e45bec79da4c5a01fad4dc23466ba255099
• https://git.kernel.org/stable/c/8491e73a5223acb0a4b4d78c3f8b96aa9c5e774d
• https://git.kernel.org/stable/c/e88633705078f40391a9afc6cc8ea3025e6f692b

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