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CVE-2026-89594

HIGHCVSS 7.8/10EPSS 0.16%

Last modified

CVE-2026-89594 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.16%

5.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < 6a5426f56de98faf7886702f8720828bf346a48f; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < a4beb841f84e0e6ad5ff3d114f43ad30165572dd; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < 9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < 9963a65be2befff82b5f5a7cfcd7ac4aca081c0b; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < e8d47e309c704df95816e7442f05947424d8b33f; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < 4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < fbffbfdae55954213fea99c5c9856c48dc705019; >= f959dcd6ddfd29235030e8026471ac1b022ad2b0, < e81250ec6b69248b00d38c523dc6a13efaf38aab; 4e57482e8440fac7137832629109730ea4b267aa; >= 5.9.2, < 5.10
LinuxLinux5.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

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.
How severe is CVE-2026-89594?
CVE-2026-89594 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89594?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST