Go to homepageCyberStrike

Menu

Star on GitHub · 3.4k
Sign inDownload

CVE-2026-89994

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: dmaengine: fsl-edma: tracing: no ptr dereference during log output The fsl edma events store a pointer to a struct fsl_edma_eng…

Published Sep 16, 2026EPSS 0.20%

Overview

CVE-2026-89994 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

dmaengine: fsl-edma: tracing: no ptr dereference during log output

The fsl edma events store a pointer to a struct fsl_edma_engine in the

ringbuffer and dereference it when a log entry is printed. At this time,

the pointer may no longer be valid.

Event injection can be used to trigger a crash:

$ cd /sys/kernel/tracing

$ echo 'value = 0' > events/fsl_edma/edma_writeb/inject

$ cat trace

The log output needs only edma->membase. Add a membase field at the end

of the event and use the new field for log output. Keep the existing

fields for backward compatibility.

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/2a3801ae5c344473e648006c5b03a9216ac54a6aRefgit.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501Refgit.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7Refgit.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89994?

CVE-2026-89994 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-89994?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-89994?

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-2026-89994?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89994 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 HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →