CVE-2026-89594

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxf959dcd6ddfd29235030e8026471ac1b022ad2b0 < e8d47e309c704df95816e7442f05947424d8b33faffected
LinuxLinuxf959dcd6ddfd29235030e8026471ac1b022ad2b0 < 4e019e5e247bfe877fdf288f2d6ec1b4c850c7c6affected
LinuxLinuxf959dcd6ddfd29235030e8026471ac1b022ad2b0 < fbffbfdae55954213fea99c5c9856c48dc705019affected
LinuxLinuxf959dcd6ddfd29235030e8026471ac1b022ad2b0 < e81250ec6b69248b00d38c523dc6a13efaf38aabaffected
LinuxLinux4e57482e8440fac7137832629109730ea4b267aaaffected
LinuxLinux5.9.2 < 5.10affected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux6.12.109 <= 6.12.*unaffected
LinuxLinux6.18.50 <= 6.18.*unaffected
LinuxLinux7.2.4 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References