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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6
https://git.kernel.org/stable/c/6a5426f56de98faf7886702f8720828bf346a48f
https://git.kernel.org/stable/c/9963a65be2befff82b5f5a7cfcd7ac4aca081c0b
https://git.kernel.org/stable/c/9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7
https://git.kernel.org/stable/c/a4beb841f84e0e6ad5ff3d114f43ad30165572dd
https://git.kernel.org/stable/c/e81250ec6b69248b00d38c523dc6a13efaf38aab
https://git.kernel.org/stable/c/e8d47e309c704df95816e7442f05947424d8b33f
https://git.kernel.org/stable/c/fbffbfdae55954213fea99c5c9856c48dc705019

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:19

Updated : 2026-09-14 13:19

NVD link : CVE-2026-89594

Mitre link : CVE-2026-89594

CVE.ORG link : CVE-2026-89594

JSON object : View

Products Affected

No product.

CWE

No CWE.

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through the normal OF/platform\ndevice initialization path.\n\nAs a result, the embedded struct device does not have a DMA mask\ninitialized by default.\n\nAfter recent DMA API hardening changes, dma_map_sg() and related helpers\nnow require a valid dma_mask to be present, otherwise the driver may\ncrash or trigger warnings when attempting DMA mapping operations.\n\nFix this by explicitly initializing the DMA mask for the SSI controller\ndevice and setting a 32-bit DMA mask, which matches the hardware\ncapabilities."}], "lastModified": "2026-09-14T13:19:13.330", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}