Security researcher found an issue with HomeKit which could make iPhone unusable. Issue is triggered by very long HomeKit device name (more than 500,000 characters).

This issue will affect first the Home app and if this device appears on Control Center, the whole iOS will become unresponsive or sluggish.

Issue is still present in current iOS and iPadOS releases.

Public disclosure: doorLock

Reference: This HomeKit bug could make your iPhone completely unusable; here are the details

Recommendations

Developer:

Beware of existing issue. Avoid long HomeKit device names. Avoid accepting invitations to unknown homes in Home app.

QA engineer:

Beware of existing issue. Avoid long HomeKit device names. Avoid accepting invitations to unknown homes in Home app.

PM/DM:

Beware of existing issue.

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