cleanse: switch to SecureZeroMemory for Windows cross-compile #26950

pull fanquake wants to merge 1 commits into bitcoin:master from fanquake:check_for_SecureZeroMemory changing 1 files +4 −4
  1. fanquake commented at 11:59 am on January 23, 2023: member
    This PR switches our Windows release builds to use the SecureZeroMemory() provided by mingw-w64.
  2. fanquake added the label Windows on Jan 23, 2023
  3. DrahtBot commented at 11:59 am on January 23, 2023: contributor

    The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

    Code Coverage

    For detailed information about the code coverage, see the test coverage report.

    Reviews

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    Type Reviewers
    ACK sipa, TheCharlatan
    Concept ACK hebasto, laanwj, theuni

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    Conflicts

    Reviewers, this pull request conflicts with the following ones:

    • #30423 (contrib: simplify test-security-check by fanquake)
    • #29790 ([DO NOT MERGE] cmake: Migrate CI scripts to CMake-based build system – WIP by hebasto)
    • #27038 (security-check: test for _FORTIFY_SOURCE usage in release binaries by fanquake)
    • #25573 ([POC] guix: produce a fully -static-pie bitcoind by fanquake)

    If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

  4. hebasto commented at 1:10 pm on May 11, 2023: member
    Concept ACK.
  5. DrahtBot added the label CI failed on Oct 29, 2023
  6. DrahtBot removed the label CI failed on Nov 3, 2023
  7. DrahtBot added the label CI failed on Jan 13, 2024
  8. laanwj commented at 7:26 am on April 24, 2024: member

    Concept ACK

    Using SecureZeroMemory when it’s available on Windows makes a lot of sense imo.

  9. in contrib/devtools/security-check.py:171 in 7fe215390e outdated 
    166+    # We are looking for rep stosb, which is f3 aa (243 170).
167+    # We search for 170, and check for a preceding 243,
168+    # so we don't match the endbr64 instruction at the
169+    # beginning of the function.
170+    aa = content.index(170)
171+    return content[aa-1] == 243
    laanwj commented at 7:30 am on April 24, 2024:
    This checks that the function is there, not whether it is used, in the right places. But it may be enough as a start. Edit: Oh never mind, you’re not looking for SecureZeroMemory itself, only its implementation within memory_cleanse. This makes sense.
    fanquake commented at 11:40 am on April 24, 2024:

    Oh never mind, you’re not looking for SecureZeroMemory itself, only its implementation within memory_cleanse. This makes sense.

    Yea. Happy to try and extend / improve things further where we can.

  10. fanquake renamed this:
    cleanse: switch to SecureZeroMemory for Windows cross-compile, check for usage
    cleanse: switch to SecureZeroMemory for Windows cross-compile
    on Jul 23, 2024
  11. fanquake force-pushed on Jul 23, 2024
  12. fanquake marked this as ready for review on Jul 23, 2024
  13. theuni commented at 4:53 pm on July 23, 2024: member
    Concept ACK. Can’t think of any reason why not, if mingw supports it.
  14. DrahtBot removed the label CI failed on Jul 23, 2024
  15. cleanse: Use SecureZeroMemory for mingw-w64 (release) builds c399c80a09
  16. fanquake force-pushed on Jul 24, 2024
  17. sipa commented at 2:03 pm on July 24, 2024: member
    utACK c399c80a09a393d38368a44ef04753e9f62350f0
  18. DrahtBot requested review from laanwj on Jul 24, 2024
  19. DrahtBot requested review from theuni on Jul 24, 2024
  20. DrahtBot requested review from hebasto on Jul 24, 2024
  21. fanquake commented at 3:40 pm on July 24, 2024: member

    Guix Build (aarch64, x86_64):

     0b2617f05ed438479493daac5d6faa637d9bc8368186f41db270392ae8bcc2ff1  guix-build-c399c80a09a3/output/aarch64-linux-gnu/SHA256SUMS.part
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 2299e1401c19e901c30096b870b34c342318d08c89bc3b6ac02a82e718ddc41ad  guix-build-c399c80a09a3/output/aarch64-linux-gnu/bitcoin-c399c80a09a3-aarch64-linux-gnu.tar.gz
 3dea5a78d4fb14deaa0ebc2d347a08064270722ebd5e69b71c11b54467a550635  guix-build-c399c80a09a3/output/arm-linux-gnueabihf/SHA256SUMS.part
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241adc754353889f365755e1b3bcfc960df237c4e196cf591e0e07142bce902352  guix-build-c399c80a09a3/output/x86_64-w64-mingw32/SHA256SUMS.part
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  22. TheCharlatan approved
  23. TheCharlatan commented at 4:12 pm on July 24, 2024: contributor
    ACK c399c80a09a393d38368a44ef04753e9f62350f0
  24. fanquake merged this on Jul 26, 2024
  25. fanquake closed this on Jul 26, 2024
  26. fanquake deleted the branch on Jul 26, 2024


fanquake DrahtBot hebasto laanwj theuni sipa TheCharlatan


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