Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2025-21663

10.0 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-tegra: Read iommu stream id from device tree Nvidia's Tegra MGBE controllers require the IOMMU "Stream ID" (…

Published Jan 21, 2025EPSS 0.41%

Overview

CVE-2025-21663 is a critical-severity vulnerability. It was published on January 21, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net: stmmac: dwmac-tegra: Read iommu stream id from device tree

Nvidia's Tegra MGBE controllers require the IOMMU "Stream ID" (SID) to be

written to the MGBE_WRAP_AXI_ASID0_CTRL register.

The current driver is hard coded to use MGBE0's SID for all controllers.

This causes softirq time outs and kernel panics when using controllers

other than MGBE0.

Example dmesg errors when an ethernet cable is connected to MGBE1:

[ 116.133290] tegra-mgbe 6910000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx

[ 121.851283] tegra-mgbe 6910000.ethernet eth1: NETDEV WATCHDOG: CPU: 5: transmit queue 0 timed out 5690 ms

[ 121.851782] tegra-mgbe 6910000.ethernet eth1: Reset adapter.

[ 121.892464] tegra-mgbe 6910000.ethernet eth1: Register MEM_TYPE_PAGE_POOL RxQ-0

[ 121.905920] tegra-mgbe 6910000.ethernet eth1: PHY [stmmac-1:00] driver [Aquantia AQR113] (irq=171)

[ 121.907356] tegra-mgbe 6910000.ethernet eth1: Enabling

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/235419f0956e8c60e597aa1619ded8bda7460bb4Refgit.kernel.org/stable/c/426046e2d62dd19533808661e912b8e8a9eaec16Refgit.kernel.org/stable/c/b04d33cdbc958a3fd57f3544d4f78b99d9d11909

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21663?

CVE-2025-21663 is a critical-severity vulnerability. It was published on January 21, 2025 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2025-21663?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-21663?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-21663?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21663 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related CRITICAL CVEs from 2025

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999