CVE-2024-7883 – CMSE secure state may leak from stack to floating-point registers

https://notcve.org/view.php?id=CVE-2024-7883

When using Arm Cortex-M Security Extensions (CMSE), Secure stack contents can be leaked to Non-secure state via floating-point registers when a Secure to Non-secure function call is made that returns a floating-point value and when this is the first use of floating-point since entering Secure state. This allows an attacker to read a limited quantity of Secure stack contents with an impact on confidentiality. This issue is specific to code generated using LLVM-based compilers. • https://developer.arm.com/Arm%20Security%20Center/Cortex-M%20Security%20Extensions%20Vulnerability • CWE-226: Sensitive Information in Resource Not Removed Before Reuse •