CVE-2025-37877

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iommu: Clear iommu-dma ops on cleanup<br /> <br /> If iommu_device_register() encounters an error, it can end up tearing<br /> down already-configured groups and default domains, however this<br /> currently still leaves devices hooked up to iommu-dma (and even<br /> historically the behaviour in this area was at best inconsistent across<br /> architectures/drivers...) Although in the case that an IOMMU is present<br /> whose driver has failed to probe, users cannot necessarily expect DMA to<br /> work anyway, it&amp;#39;s still arguable that we should do our best to put<br /> things back as if the IOMMU driver was never there at all, and certainly<br /> the potential for crashing in iommu-dma itself is undesirable. Make sure<br /> we clean up the dev-&gt;dma_iommu flag along with everything else.