iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs (CVE-2026-90428) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90428

iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs

Answer in brief

CVE-2026-90428 records a Unknown severity vulnerability in iommu/tegra241-cmdqv: Don't run the error ISR before probe sets up vintfs. 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	>=918eb5c856f6ce4cf93b4b38e4b5e156905c5943 <b1605a56745f22670205f6561df5771bbbb62a99 \|\| >=918eb5c856f6ce4cf93b4b38e4b5e156905c5943 <2f627118b668659c6b195ac48beedb1bf8f53368 \|\| >=918eb5c856f6ce4cf93b4b38e4b5e156905c5943 <a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d \|\| >=918eb5c856f6ce4cf93b4b38e4b5e156905c5943 <5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd	b1605a56745f22670205f6561df5771bbbb62a99, 2f627118b668659c6b195ac48beedb1bf8f53368, a168254ff8db08f2292be3d8fcbd37d2bb8c3d2d, 5acd67ceb38debe2fbf70ea35e2dec9f7ab01bbd
Linux/Linuxgeneric	6.12	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to b1605a56745f22670205f6561df5771bbbb62a99 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: Don't run the error ISR before probe sets up vintfs __tegra241_cmdqv_probe() requests the error IRQ before it has allocated the cmdqv->vintfs array and set cmdqv->num_vintfs. A CMDQV left enabled with a latched error across a kexec fires the IRQ as soon as it is requested, and tegra241_cmdqv_isr() then walks the uninitialized cmdqv->vintfs array. Request the IRQ only after cmdqv->vintfs is allocated and zeroed, so that a latched interrupt firing early runs the ISR against a valid array of NULL slots that it safely skips.

Quoted source text, attributed separately from HOL analysis.