CVE-2025-37877

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 36/100
Published: 2025-05-09 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Affected Software (6)

VendorProductVersion
Linux Linux b5c58b2fdc427e7958412ecb2de2804a1f7c1572 < b14d98641312d972bb3f38e82eddf92898522389
Linux Linux b5c58b2fdc427e7958412ecb2de2804a1f7c1572 < 104a84276821aed0ed241ce0d82d6c3267e3fcb8
Linux Linux b5c58b2fdc427e7958412ecb2de2804a1f7c1572 < 280e5a30100578106a4305ce0118e0aa9b866f12
Linux Linux 6.12
linux linux_kernel < 6.12.26
linux linux_kernel 6.15

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.28%
Raw Score 0.002760
Percentile 20.1%
Date 2026-11-06

EPSS Trend

2026-11-06
0.00276
2026-11-05
0.00276

Intelligence Sources

mitre ref →
nvd ref →