CVE-2026-80774 Linux CVE debrief

Who should care

Linux system administrators, security teams, and developers using HID: asus devices should verify kernel versions, assess exposure, and apply patches if available. They should also review system logs for related issues and track exceptions. The vulnerability can cause a kernel splat in ASAN builds and may have implications for systems using HID: asus devices. Linux kernel developers and maintainers should verify patch application and test coverage.

Why it matters

This vulnerability can cause a kernel splat in ASAN builds and may have implications for systems using HID: asus devices. Linux system administrators and security teams should verify kernel versions and assess exposure.

• Verify Linux kernel versions to ensure patching
• Assess exposure in systems using HID: asus devices

Technical summary

The Linux kernel HID: asus module has a vulnerability due to a missing hid_is_usb() check. This can cause issues when using the to_usb_interface() function on devices that are not actually USB devices. The vulnerability can trigger a kernel splat in ASAN builds. Linux system administrators and security teams should verify kernel versions and assess exposure in systems using HID: asus devices. The bug can be triggered by uhid-created devices that identify as being on BUS_USB but don't have a USB parent. The fix involves adding a hid_is_usb() check before using to_usb_interface().

Defensive priority

Verify Linux kernel versions and assess exposure in systems using HID: asus devices.

Recommended defensive actions

• Verify Linux kernel versions in use
• Assess exposure in systems using HID: asus devices
• Apply patches if available
• Review system logs for related issues
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions, retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. Multiple source references are available, including kernel.org links to specific commits. Linux kernel developers and maintainers should verify patch application and test coverage. Security teams should assess exposure in systems using HID: asus devices and verify kernel versions. The vulnerability can cause a kernel splat in ASAN builds, and defenders should review system logs for related issues.

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.