CVE-2026-90424 Linux CVE debrief

Who should care

Linux administrators and security teams should assess exposure and prioritize patching for affected systems, focusing on the iommu/tegra241-cmdqv module. System operators, platform administrators, and security teams responsible for Linux kernel management should review the vulnerability and implement necessary patches or mitigations. Additionally, teams responsible for vulnerability management, asset inventory, and security monitoring should be aware of

Why it matters

Linux kernel vulnerability CVE-2026-90424 patched to address VINTF0 leak, requiring assessment and patching for affected systems.

• Verify Linux kernel updates to prevent potential VINTF0 leaks
• Assess system exposure to determine patch priority

Technical summary

The Linux kernel vulnerability CVE-2026-90424 was resolved, addressing a VINTF0 leak on the init-failure path in the iommu/tegra241-cmdqv module. The vulnerability was caused by improper handling of VINTF0 during initialization, potentially leading to memory leaks. The patch addresses these issues by ensuring proper cleanup and reducing the risk of exploitation. The technical resolution involves updating the tegra241_cmdqv_init_structures function to properly handle VINTF0 allocation and deallocation. This change prevents potential memory leaks and ensures the stability of the Linux kernel.

Defensive priority

Assess Linux kernel exposure, prioritize patching for affected systems.

Recommended defensive actions

• Assess Linux kernel exposure to CVE-2026-90424
• Prioritize patching for affected systems
• Verify system updates for the iommu/tegra241-cmdqv module
• Review compensating controls for exposed systems
• Check relevant monitoring and detection logs
• Track exceptions and retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record and source item provide details on the vulnerability and its resolution. The Linux kernel vulnerability CVE-2026-90424 was resolved, addressing a VINTF0 leak on the init-failure path in the iommu/tegra241-cmdqv module. The vulnerability was publicly disclosed and patched, with the CVE record serving as the primary source of information. Evidence of the vulnerability's existence and impact can be found in the official CVE record and associated source items. The resolution involves updating the tegra241_cmdqv_init_structures function to pre

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.