CVE-2026-89994

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89994

Key Details

CVE	CVE-2026-89994
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89994
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89994

Source

Reference

NVD

CVE