CVE-2025-39934
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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.
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Meta Information
Published
2025-10-04
Last Modified
2026-01-23
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39934
Affected Vendors & Products
Showing 11 associated CPEs
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
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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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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