CVE-2026-23295 Linux CVE debrief

Who should care

Linux kernel developers and administrators responsible for maintaining and securing Linux-based systems should be aware of this vulnerability. They should verify kernel versions and apply patches to address the issue. Additionally, they should review the system's configuration and assess the potential impact of the vulnerability on their systems. Linux kernel developers should also review the code changes and ensure that the fix is properly implemented.

Why it matters

The CVE-2026-23295 vulnerability in the Linux kernel's accel/amdxdna component can cause a deadlock when an application issues a query IOCTL while auto suspend is running. Linux kernel developers and administrators should verify kernel versions and apply patches to address the issue.

• Verify Linux kernel versions to ensure they are not vulnerable to the deadlock issue.
• Apply patches to address the deadlock vulnerability in the Linux kernel's accel/amdxdna component.

Technical summary

A deadlock vulnerability in the Linux kernel's accel/amdxdna component can occur when an application issues a query IOCTL while auto suspend is running. The vulnerability has been resolved by releasing dev_lock before calling pm_runtime_resume_and_get() and reacquiring it after the call completes. This fix prevents potential system hangs and ensures smoother operation of the accel/amdxdna component. The technical details of the vulnerability involve the improper handling of the dev_lock in the accel/amdxdna component, which can lead to a deadlock situation.

Defensive priority

Apply patches to address the deadlock vulnerability in the Linux kernel's accel/amdxdna component.

Recommended defensive actions

• Apply patches to address the deadlock vulnerability in the Linux kernel's accel/amdxdna component.
• Review and update Linux kernel versions to ensure they are not vulnerable.
• Verify Linux kernel versions to ensure they are not vulnerable to the deadlock issue.
• 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.
• Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE record and NVD vulnerability detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. The Linux kernel's accel/amdxdna component is susceptible to a deadlock vulnerability, which can be triggered when an application issues a query IOCTL while auto suspend is running. To verify the presence of this vulnerability, defenders should review the Linux kernel version and compare it with the patched version. Additionally, they should check the system's configuration and assess

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.