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CVE-2026-89594

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before 6a5426f56de98faf7886702f8720828bf346a48f; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before a4beb841f84e0e6ad5ff3d114f43ad30165572dd; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before 9ecef057b7a7f165ce66eaf07cb4cf85d10ed9c7; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before 9963a65be2befff82b5f5a7cfcd7ac4aca081c0b; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before e8d47e309c704df95816e7442f05947424d8b33f; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before 4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before fbffbfdae55954213fea99c5c9856c48dc705019; affected f959dcd6ddfd29235030e8026471ac1b022ad2b0 before e81250ec6b69248b00d38c523dc6a13efaf38aab; affected 4e57482e8440fac7137832629109730ea4b267aa; affected 5.9.2 before 5.10
Linux / Linuxaffected 5.10; unaffected 0 before 5.10; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.109 through 6.12.*; unaffected 6.18.50 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References