An out-of-bounds read issue was addressed with improved bounds checking. This issue is fixed in watchOS 8.7, tvOS 15.6, iOS 15.6 and iPadOS 15.6, macOS Monterey 12.5. An app may be able to disclose kernel memory.
https://support.apple.com/en-us/HT213346
https://support.apple.com/en-us/HT213345