iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID (CVE-2026-90425) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90425

iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

Answer in brief

CVE-2026-90425 records a Unknown severity vulnerability in iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 <9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5 \|\| >=4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 <0b139ec4641c7d4163d8e345c26cc630e24fa43b \|\| >=4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 <fb292bfc9be936dade7eef7ec5762de1201983d8	9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5, 0b139ec4641c7d4163d8e345c26cc630e24fa43b, fb292bfc9be936dade7eef7ec5762de1201983d8
Linux/Linuxgeneric	6.17	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 9b37afb2d34d99ec4f8db28134181b5a8ec9a4a5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID tegra241_vintf_init_vsid() maps a guest vSID to a single physical Stream ID taken from master->streams[0], and only warns when the device does not have exactly one stream. A device with several streams gets only its first one mapped, so a guest vSID invalidation cannot reach the others' ATC and IOTLB entries; a device with none makes master->streams a ZERO_SIZE_PTR, read out of bounds. Reject the mapping with -EOPNOTSUPP if master->num_streams is not one.

Quoted source text, attributed separately from HOL analysis.