CVE-2025-37900 Information

Description

In the Linux kernel the following vulnerability has been resolved:

iommu: Fix two issues in iommu_copy_struct_from_user()

In the review for iommu_copy_struct_to_user() helper Matt pointed out that a NULL pointer should be rejected prior to dereferencing it: https://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com

And Alok pointed out a typo at the same time: https://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com

Since both issues were copied from iommu_copy_struct_from_user() fix them first in the current header.

Reference

https://git.kernel.org/stable/c/2e303d010722787dc84d94f68d70fe10dfc1b9ea https://git.kernel.org/stable/c/30a3f2f3e4bd6335b727c83c08a982d969752bc1 https://git.kernel.org/stable/c/967d6f0d9a20a1bf15ee7ed881e2d4e532e22709