USB Type-C ANX7411 IRQ Workqueue Use-After-Free

Executive Summary

This vulnerability in the Linux kernel involves a race condition in the USB Type-C ANX7411 driver. The issue occurs because the IRQ handler can still queue work to a workqueue after the driver's remove function starts destroying it. The fix ensures the IRQ is disabled before the workqueue is torn down to prevent this race condition.

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Detection Guidance

This vulnerability is specific to the Linux kernel's USB Type-C driver (anx7411). Detection requires checking if the affected driver is loaded and examining kernel logs for related errors. Use commands like 'lsmod | grep anx7411' to check if the module is loaded and 'dmesg | grep anx7411' to review kernel messages for anomalies.

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Impact Analysis

This vulnerability could lead to system instability or crashes if the IRQ triggers workqueue operations during driver removal. It may cause unexpected behavior in USB Type-C functionality but is unlikely to directly impact end users beyond potential device unavailability or kernel errors.

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Compliance Impact

This vulnerability does not directly affect compliance with standards like GDPR or HIPAA as it is a low-level kernel issue related to USB Type-C device handling. No evidence suggests it impacts data protection or privacy requirements.

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Mitigation Strategies

Update the Linux kernel to the latest patched version to resolve the usb typec anx7411 IRQ issue. Check your distribution's security updates or kernel patches for CVE-2026-98768.

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