Description
In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
Published: 2026-11-10
Score: n/a
EPSS: n/a
KEV: No
AI Analysis

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Remediation

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Advisories

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History

Tue, 10 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Description In smmu_unmap_visit_leaf of arm-smmu-v3.c, there is a possible way to release active direct memory access page references during unmapping due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Google_Devices

Published:

Updated: 2026-11-10T19:20:50.857Z

Reserved: 2026-06-23T16:13:58.908Z

Link: CVE-2026-56946

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T20:19:16.533

Modified: 2026-11-10T21:46:38.673

Link: CVE-2026-56946

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.