Description

In the Linux kernel, the following vulnerability has been resolved:

iommu: Clear iommu-dma ops on cleanup

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

Classification

CVE ID: CVE-2025-37877

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 4.25% (scored less or equal to compared to others)

EPSS Date: 2025-06-07 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-37877
https://git.kernel.org/stable/c/b14d98641312d972bb3f38e82eddf92898522389
https://git.kernel.org/stable/c/104a84276821aed0ed241ce0d82d6c3267e3fcb8
https://git.kernel.org/stable/c/280e5a30100578106a4305ce0118e0aa9b866f12

Timeline