CVE-2026-97909 Linux CVE debrief

Who should care

Linux kernel developers and maintainers, Linux distribution vendors, and users of Linux-based systems that utilize the ASoC sti driver. Additional stakeholders include operators, security teams, and vulnerability management teams that need to assess their exposure and verify the fix.

Why it matters

A vulnerability in the Linux kernel's ASoC sti driver requires verification of IRQ lock initialization to prevent potential issues. Linux kernel developers, maintainers, and users of Linux-based systems that utilize the ASoC sti driver should assess their exposure and verify the fix.

• Verify IRQ lock initialization in the ASoC sti driver
• Assess the impact on system stability and security
• Review kernel version and patch level for affected systems

Technical summary

The Linux kernel's ASoC sti driver has a vulnerability due to the IRQ lock being initialized after the IRQ is requested. This can lead to a potential problem if an interrupt occurs before the lock is initialized. The fix involves initializing the lock before registering the IRQ. The vulnerability affects Linux kernel developers and maintainers, Linux distribution vendors, and users of Linux-based systems that utilize the ASoC sti driver. Additional technical analysis is required to fully understand the impact and assess affected systems.

Defensive priority

Medium

Recommended defensive actions

• Review the Linux kernel's ASoC sti driver for IRQ lock initialization
• Verify the fix by initializing the lock before registering the IRQ
• Assess the impact on systems using the affected kernel version
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• 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.

Evidence notes

The CVE record and NVD entry provide information on the vulnerability. However, the details are limited, and further verification is required to assess the impact and affected systems. The Linux kernel's ASoC sti driver has a vulnerability due to the IRQ lock being initialized after the IRQ is requested. This can lead to a potential problem if an interrupt occurs before the lock is initialized. The fix involves initializing the lock before registering the IRQ. Additional verification is needed to confirm affected systems and assess A

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.