CVE-2025-37748 Information

Description

In the Linux kernel the following vulnerability has been resolved:

iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group

Currently mtk_iommu calls during probe iommu_device_register before the hw_list from driver data is initialized. Since iommu probing issue fix it leads to NULL pointer dereference in mtk_iommu_device_group when hw_list is accessed with list_first_entry (not null safe).

So change the call order to ensure iommu_device_register is called after the driver data are initialized.

Reference

https://git.kernel.org/stable/c/2f75cb27bef43c8692b0f5e471e5632f6a9beb99 https://git.kernel.org/stable/c/38e8844005e6068f336a3ad45451a562a0040ca1 https://git.kernel.org/stable/c/69f9d2d37d1207c5a73dac52a4ce1361ead707f5 https://git.kernel.org/stable/c/6abd09bed43b8d83d461e0fb5b9a200a06aa8a27 https://git.kernel.org/stable/c/a0842539e8ef9386c070156103aff888e558a60c https://git.kernel.org/stable/c/ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c