functional tests fail –with-sanitizers=undefined #14059

1. 
   MarcoFalke commented at 11:03 pm on August 24, 2018: member

   Steps to reproduce on master and 0.17:

   0git checkout bitcoin/master && make distclean
   1./configure --with-sanitizers=undefined CC=clang CXX=clang++
   2make -j 16 check && ./test/functional/test_runner.py -j 16
   

   Runs into some divide by zero and other issues…

2. fanquake added the label Tests on Aug 24, 2018
3. 
   practicalswift commented at 9:15 pm on September 20, 2018: contributor

   This is addressed in the following PRs:

   • #14242: Avoid triggering undefined behaviour (std::memset(nullptr, 0, 0)) if an invalid string is passed to DecodeSecret(...)
   • #14239: Avoid dividing by zero (undefined behaviour) in EstimateMedianVal (policy)/ConnectTip (validation)/CreateTransaction (wallet)
   • #13546: wallet: Avoid potential use of uninitialized value bnb_used in CWallet::CreateTransaction(...)
   • #14252: build: Run functional tests and benchmarks under the undefined behaviour sanitizer (UBSan)

   Please review :-)

4. MarcoFalke referenced this in commit 1ba5583646 on Nov 5, 2018
5. MarcoFalke closed this on Nov 17, 2018

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MarcoFalke practicalswift

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Tests