CVE-2026-53100 Linux CVE debrief

Who should care

Linux kernel maintainers, Linux distribution vendors, and users of Linux kernel versions 6.14 to 6.18.33 and 6.19 to 7.0.10 should be aware of this vulnerability and apply the provided patches. Affected operators include Linux kernel developers and maintainers. Affected platforms include Linux-based systems using the mt76 module. Vulnerability-management and security teams should review the provided patches and apply them to affected systems.

Technical summary

The Linux kernel's WiFi mt76 module is vulnerable to a deadlock issue. The mt76_remain_on_channel() and mt76_roc_complete() functions acquire dev->mutex and then call mt76_set_channel(), which also acquires dev->mutex, resulting in a deadlock. To fix this issue, the patch replaces mt76_set_channel() with __mt76_set_channel() and adds cancel_delayed_work_sync() for mac_work before acquiring the mutex in mt76_remain_on_channel(). This fix is based on the official CVE record and NVD entry.

Defensive priority

Apply patches to prevent deadlock in mt76 module. This priority is based on the severity of the vulnerability and the potential impact on Linux-based systems.

Recommended defensive actions

• Apply patches from Linux kernel stable branches
• Inventory Linux kernel versions for potential exposure
• Monitor for potential exploit attempts
• Consider compensating controls for unpatched systems
• Review 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 was published on 2026-06-24T17:17:24.257Z and last modified on 2026-07-21T18:21:01.780Z. The NVD entry is currently Analyzed. This information is based on the provided source corpus. Further verification is recommended to ensure accuracy.

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.