BaseFortify

Publication date: 2025-10-04

Last updated on: 2026-01-23

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ If the interrupt occurs before resource initialization is complete, the interrupt handler/worker may access uninitialized data such as the I2C tcpc_client device, potentially leading to NULL pointer dereference.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-04

Last Modified

2026-01-23

Generated

2026-07-06

AI Q&A

2025-10-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-39934

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.11 (inc) to 5.15.194 (exc)
linux	linux_kernel	From 5.16 (inc) to 6.1.154 (exc)
linux	linux_kernel	From 6.2 (inc) to 6.6.108 (exc)
linux	linux_kernel	From 6.7 (inc) to 6.12.49 (exc)
linux	linux_kernel	From 6.13 (inc) to 6.16.9 (exc)
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17
linux	linux_kernel	6.17

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability occurs in the Linux kernel's drm bridge component for anx7625. If an interrupt happens before the necessary resources are fully initialized, the interrupt handler or worker may try to access uninitialized data, such as the I2C tcpc_client device. This can lead to a NULL pointer dereference, which may cause the system to crash or behave unexpectedly.

Impact Analysis

The vulnerability can cause the system to crash or become unstable due to a NULL pointer dereference triggered by an interrupt occurring too early. This may lead to denial of service or unexpected behavior in systems using the affected Linux kernel component.

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