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Title: Fix crashes in valueflow by Ken-Patrick · Pull Request #2236 · cppcheck-opensource/cppcheck · GitHub

Open Graph Title: Fix crashes in valueflow by Ken-Patrick · Pull Request #2236 · cppcheck-opensource/cppcheck

X Title: Fix crashes in valueflow by Ken-Patrick · Pull Request #2236 · cppcheck-opensource/cppcheck

Description: http://cppcheck1.osuosl.org:8000/crash.html For instance in http://cppcheck1.osuosl.org:8000/styx ==19651==ERROR: AddressSanitizer: SEGV on unknown address 0x00000000001c (pc 0x556f21abc3df bp 0x7ffc140d2720 sp 0x7ffc140d2710 T0) ==19651==The signal is caused by a READ memory access. ==19651==Hint: address points to the zero page. #0 0x556f21abc3de in Variable::isGlobal() const ../lib/symboldatabase.h:342 #1 0x556f221f801a in valueFlowForwardVariable ../lib/valueflow.cpp:2471 #2 0x556f22208130 in valueFlowForward ../lib/valueflow.cpp:3204 #3 0x556f221e9e14 in valueFlowReverse ../lib/valueflow.cpp:1892 #4 0x556f221f1a43 in valueFlowBeforeCondition ../lib/valueflow.cpp:2200 #5 0x556f2223dbb5 in ValueFlow::setValues(TokenList*, SymbolDatabase*, ErrorLogger*, Settings const*) ../lib/valueflow.cpp:6521 #6 0x556f220e5991 in Tokenizer::simplifyTokens1(std::__cxx11::basic_string, std::allocator > const&) ../lib/tokenize.cpp:2342 #7 0x556f21d8d066 in CppCheck::checkFile(std::__cxx11::basic_string, std::allocator > const&, std::__cxx11::basic_string, std::allocator > const&, std::istream&) ../lib/cppcheck.cpp:508 #8 0x556f21d84cd3 in CppCheck::check(std::__cxx11::basic_string, std::allocator > const&) ../lib/cppcheck.cpp:192 #9 0x556f21a28796 in CppCheckExecutor::check_internal(CppCheck&, int, char const* const*) ../cli/cppcheckexecutor.cpp:884 #10 0x556f21a24be8 in CppCheckExecutor::check(int, char const* const*) ../cli/cppcheckexecutor.cpp:198 #11 0x556f22313063 in main ../cli/main.cpp:95

Open Graph Description: http://cppcheck1.osuosl.org:8000/crash.html For instance in http://cppcheck1.osuosl.org:8000/styx ==19651==ERROR: AddressSanitizer: SEGV on unknown address 0x00000000001c (pc 0x556f21abc3df bp 0x7f...

X Description: http://cppcheck1.osuosl.org:8000/crash.html For instance in http://cppcheck1.osuosl.org:8000/styx ==19651==ERROR: AddressSanitizer: SEGV on unknown address 0x00000000001c (pc 0x556f21abc3df bp 0x7f...

Opengraph URL: https://github.com/cppcheck-opensource/cppcheck/pull/2236

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e920e00 Fix crashes in valueflow Oct 3, 2019 https://github.com/cppcheck-opensource/cppcheck/pull/2236/commits/e920e00716683c9f833e54d55ab873592be685c8
c27c482 Add test case for crash in valueflow Oct 7, 2019 https://github.com/cppcheck-opensource/cppcheck/pull/2236/commits/c27c482b7abe1700426d28896f736ab09a32fec5
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