trustzone m

TrustZone M is a hardware security feature in Arm Cortex-M processors that isolates secure and non-secure software. Discussions on WindowsForum cover vulnerabilities like CVE-2024-7883, an LLVM/Clang compiler issue that can leak a small portion of the Cortex-M Secure stack into Non-secure state via floating-point registers when certain Arm Cortex-M Security Extensions (CMSE) calling patterns occur. Microsoft's MSRC has attested that Azure Linux includes the implicated open-source component, but this is a product-scoped inventory statement, not a guarantee that no other Microsoft product could be affected. The tag focuses on security implications, compiler behavior, and attestation processes related to TrustZone M.