CVE-2026-89594

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

State: Published
Severity: 7.8 High
Published: Sep 11, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 6a5426f56de98faf7886702f8720828bf346a48fAffected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before a4beb841f84e0e6ad5ff3d114f43ad30165572ddAffected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7Affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 9963a65be2befff82b5f5a7cfcd7ac4aca081c0bAffected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before e8d47e309c704df95816e7442f05947424d8b33fAffected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6Affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before fbffbfdae55954213fea99c5c9856c48dc705019Affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before e81250ec6b69248b00d38c523dc6a13efaf38aabAffected 4e57482e8440fac7137832629109730ea4b267aaAffected 5.9.2 to before 5.10Affected
LinuxLinux	5.10Affected before 5.10Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 6a5426f56de98faf7886702f8720828bf346a48fAffected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before a4beb841f84e0e6ad5ff3d114f43ad30165572ddAffected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7Affected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 9963a65be2befff82b5f5a7cfcd7ac4aca081c0bAffected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before e8d47e309c704df95816e7442f05947424d8b33fAffected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before 4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6Affected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before fbffbfdae55954213fea99c5c9856c48dc705019Affected
f959dcd6ddfd29235030e8026471ac1b022ad2b0 to before e81250ec6b69248b00d38c523dc6a13efaf38aabAffected
4e57482e8440fac7137832629109730ea4b267aaAffected
5.9.2 to before 5.10Affected

LinuxLinux

5.10Affected
before 5.10Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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