openssl/openssl

Creating OpenSSL binaries with Control flow guard enabled fails with multiple test failure

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#22,554 opened on Oct 30, 2023

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branch: masterhelp wantedtriaged: feature

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Description

I am trying to create a non-shared fips enabled build with control flow guard enabled:

command used: perl Configure VC-WIN64A enable-fips enable-capieng --prefix=D:\opensslBuild\x64\dll --openssldir=D:\opensslBuild\openssldir no-shared CFLAGS=/guard:cf LDFLAGS=/guard:cf LIB_CFLAGS=/guard:cf

This is failing with multiple test failures.

Without using CFLAGS=/guard:cf LDFLAGS=/guard:cf LIB_CFLAGS=/guard:cf , Build is successfuly created.

Contributor guide

Research direction
Investigate why enabling Control Flow Guard (CFG) causes test failures in OpenSSL FIPS build. Examine the failing tests, check if CFG is incompatible with certain code patterns in OpenSSL, and potentially disable CFG for specific tests or fix the code.
Tech stack
c
Domain
security
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
CGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30