CVE-2026-93165 Linux CVE debrief

Who should care

Linux kernel developers, system administrators, and security teams responsible for Linux kernel systems should assess exposure and prioritize patching or compensating controls. This includes operators managing affected Linux kernel deployments, vulnerability management teams, and security teams overseeing system security posture.

Why it matters

CVE-2026-93165 is a memory overread vulnerability in the Linux kernel's platform/chrome sensorhub. Linux kernel developers, system administrators, and security teams should assess exposure and prioritize patching or compensating controls.

• Verify Linux kernel patch levels to ensure systems are up-to-date
• Monitor system logs for potential sensorhub exploitation attempts
• Assess exposure of Linux kernel systems to CVE-2026-93165

Technical summary

The Linux kernel's platform/chrome sensorhub has a memory overread vulnerability. The issue arises from `max_response` and `sensor_num` being read from different EC commands, potentially causing the `msg->insize` to be clamped in `cros_ec_cmd_xfer()`. This could result in the subsequent `memcpy()` in `cros_ec_sensorhub_ring_handler()` overreading the `resp->fifo_info` buffer. Developers should assess exposure, prioritize patching, and monitor for exploitation attempts.

Defensive priority

Assess Linux kernel exposure, prioritize patching or compensating controls for affected systems, monitor for potential sensorhub exploitation attempts.

Recommended defensive actions

• Assess exposure of Linux kernel systems to CVE-2026-93165
• Prioritize patching or applying compensating controls for affected systems
• Monitor system logs for potential sensorhub exploitation attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability. Linux kernel developers have addressed the issue with multiple commits. To verify, defenders should check Linux kernel patch levels, review system logs for potential sensorhub exploitation attempts, and assess exposure of Linux kernel systems to CVE-2026-93165. Evidence is limited to public CVE details and associated source references.

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.