CVE intelligence

CVE-2026-89594

Vulnerability intelligence

Published Sep 11, 2026Sources checked Nov 3, 2026

7.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-89594 and is rated High severity with a CVSS score of 7.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-89594?

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

hsi: omap_ssi_core: fix missing DMA mask setup for SSI controller device

The OMAP SSI driver uses a synthetic HSI controller device allocated via hsi_alloc_controller(), which does not go through the normal OF/platform device initialization path.

As a result, the embedded struct device does not have a DMA mask initialized by default.

After recent DMA API hardening changes, dma_map_sg() and related helpers now require a valid dma_mask to be present, otherwise the driver may crash or trigger warnings when attempting DMA mapping operations.

Fix this by explicitly initializing the DMA mask for the SSI controller device and setting a 32-bit DMA mask, which matches the hardware capabilities.

Source: NVD