CVE-2026-56944
Received
Received - Intake
Use After Free in Arm SMMU v3 Driver
Vulnerability report for CVE-2026-56944, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-10
Last updated on: 2026-11-10
Assigner: Google Devices
Description
Description
In smmu_detach_dev of private/google-modules/iommu/arm-smmu-v3/drivers/iommu/arm/arm-smmu-v3/pkvm/arm-smmu-v3.c, there is a possible Use After Free due to a logic error in the code. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| arm_smmu_v3 | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |