bkramer added a comment.
This seems to trigger a use after free in `lldb-api ::
functionalities/thread/create_after_attach/TestCreateAfterAttach.py`
asan log:
==4741==ERROR: AddressSanitizer: heap-use-after-free on address
0x62f00023bf58 at pc 0x563639db88f1 bp 0x7ffd942412f0 sp 0x7ffd942412e8
READ of size 4 at 0x62f00023bf58 thread T0
#0 0x563639db88f0 in HasChildren
lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h:124:37
#1 0x563639db88f0 in GetFirstChild
lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h:148:12
#2 0x563639db88f0 in GetFirstChild
lldb/source/Plugins/SymbolFile/DWARF/DWARFDIE.cpp:101:34
#3 0x563639db88f0 in child_iterator
lldb/source/Plugins/SymbolFile/DWARF/DWARFDIE.h:107:57
#4 0x563639db88f0 in DWARFDIE::children() const
lldb/source/Plugins/SymbolFile/DWARF/DWARFDIE.cpp:466:27
#5 0x563639d9f4e1 in
DWARFASTParserClang::EnsureAllDIEsInDeclContextHaveBeenParsed(lldb_private::CompilerDeclContext)
lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp:2203:37
#6 0x563639f1ab62 in
lldb_private::TypeSystemClang::DeclContextFindDeclByName(void*,
lldb_private::ConstString, bool)
lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp:9494:22
#7 0x563639f489fd in
lldb_private::CompilerDeclContext::FindDeclByName(lldb_private::ConstString,
bool) lldb/source/Symbol/CompilerDeclContext.cpp:20:27
#8 0x563639b6113c in
lldb_private::ClangExpressionDeclMap::LookupLocalVariable(lldb_private::NameSearchContext&,
lldb_private::ConstString, lldb_private::SymbolContext&,
lldb_private::CompilerDeclContext const&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:1084:20
#9 0x563639b5d7cf in
lldb_private::ClangExpressionDeclMap::FindExternalVisibleDecls(lldb_private::NameSearchContext&,
std::__u::shared_ptr<lldb_private::Module>, lldb_private::CompilerDeclContext
const&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:1434:9
#10 0x563639b5c9df in
lldb_private::ClangExpressionDeclMap::FindExternalVisibleDecls(lldb_private::NameSearchContext&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:728:5
#11 0x563639b3df83 in
lldb_private::ClangASTSource::FindExternalVisibleDeclsByName(clang::DeclContext
const*, clang::DeclarationName)
lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp:180:3
#12 0x56363d02aa30 in clang::DeclContext::lookup(clang::DeclarationName)
const clang/lib/AST/DeclBase.cpp:1706:17
#13 0x56363c2bca5b in LookupDirect(clang::Sema&, clang::LookupResult&,
clang::DeclContext const*) clang/lib/Sema/SemaLookup.cpp:1108:39
#14 0x56363c2b67f5 in CppNamespaceLookup(clang::Sema&,
clang::LookupResult&, clang::ASTContext&, clang::DeclContext*, (anonymous
namespace)::UnqualUsingDirectiveSet&) clang/lib/Sema/SemaLookup.cpp:1207:16
#15 0x56363c2b5a1e in clang::Sema::CppLookupName(clang::LookupResult&,
clang::Scope*) clang/lib/Sema/SemaLookup.cpp:1495:15
#16 0x56363c2bc0f2 in clang::Sema::LookupName(clang::LookupResult&,
clang::Scope*, bool, bool) clang/lib/Sema/SemaLookup.cpp:2259:9
#17 0x56363bdb50b8 in clang::Sema::BuildUsingDeclaration(clang::Scope*,
clang::AccessSpecifier, clang::SourceLocation, bool, clang::SourceLocation,
clang::CXXScopeSpec&, clang::DeclarationNameInfo, clang::SourceLocation,
clang::ParsedAttributesView const&, bool, bool)
clang/lib/Sema/SemaDeclCXX.cpp:12329:5
#18 0x56363bdb49f3 in clang::Sema::ActOnUsingDeclaration(clang::Scope*,
clang::AccessSpecifier, clang::SourceLocation, clang::SourceLocation,
clang::CXXScopeSpec&, clang::UnqualifiedId&, clang::SourceLocation,
clang::ParsedAttributesView const&) clang/lib/Sema/SemaDeclCXX.cpp:11833:7
#19 0x56363b49df12 in
clang::Parser::ParseUsingDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation,
clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier)
clang/lib/Parse/ParseDeclCXX.cpp:803:26
#20 0x56363b49c27d in
clang::Parser::ParseUsingDirectiveOrDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation&,
clang::ParsedAttributes&) clang/lib/Parse/ParseDeclCXX.cpp:512:10
#21 0x56363b46c161 in
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&,
clang::SourceLocation*) clang/lib/Parse/ParseDecl.cpp:1797:12
#22 0x56363b55fb99 in
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributes&, clang::ParsedAttributes&)
clang/lib/Parse/ParseStmt.cpp:247:16
#23 0x56363b55cfb6 in
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
clang/lib/Parse/ParseStmt.cpp:115:20
#24 0x56363b56c048 in clang::Parser::ParseCompoundStatementBody(bool)
clang/lib/Parse/ParseStmt.cpp:1171:11
#25 0x56363b56e32d in
clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&) clang/lib/Parse/ParseStmt.cpp:2442:21
#26 0x56363b5988a8 in
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
clang/lib/Parse/Parser.cpp:1428:10
#27 0x56363b47493a in
clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*,
clang::Parser::ForRangeInit*) clang/lib/Parse/ParseDecl.cpp:2117:27
#28 0x56363b5971c9 in
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
clang/lib/Parse/Parser.cpp:1179:10
#29 0x56363b596633 in
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
clang/lib/Parse/Parser.cpp:1193:12
#30 0x56363b594dbc in
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&,
clang::ParsingDeclSpec*) clang/lib/Parse/Parser.cpp:1019:12
#31 0x56363b592079 in
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&,
clang::Sema::ModuleImportState&) clang/lib/Parse/Parser.cpp:737:12
#32 0x56363b453bbe in clang::ParseAST(clang::Sema&, bool, bool)
clang/lib/Parse/ParseAST.cpp:162:20
#33 0x563639b7608c in
lldb_private::ClangExpressionParser::ParseInternal(lldb_private::DiagnosticManager&,
clang::CodeCompleteConsumer*, unsigned int, unsigned int)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionParser.cpp:1176:5
#34 0x563639b9e617 in
lldb_private::ClangUserExpression::TryParse(lldb_private::DiagnosticManager&,
lldb_private::ExecutionContextScope*, lldb_private::ExecutionContext&,
lldb_private::ExecutionPolicy, bool, bool)
lldb/source/Plugins/ExpressionParser/Clang/ClangUserExpression.cpp:580:35
#35 0x563639b9ecff in
lldb_private::ClangUserExpression::Parse(lldb_private::DiagnosticManager&,
lldb_private::ExecutionContext&, lldb_private::ExecutionPolicy, bool, bool)
lldb/source/Plugins/ExpressionParser/Clang/ClangUserExpression.cpp:679:24
#36 0x563639aa5039 in
lldb_private::UserExpression::Evaluate(lldb_private::ExecutionContext&,
lldb_private::EvaluateExpressionOptions const&, llvm::StringRef,
llvm::StringRef, std::__u::shared_ptr<lldb_private::ValueObject>&,
lldb_private::Status&, std::__u::basic_string<char,
std::__u::char_traits<char>, std::__u::allocator<char>>*,
lldb_private::ValueObject*) lldb/source/Expression/UserExpression.cpp:271:27
#37 0x56363a090e07 in
lldb_private::Target::EvaluateExpression(llvm::StringRef,
lldb_private::ExecutionContextScope*,
std::__u::shared_ptr<lldb_private::ValueObject>&,
lldb_private::EvaluateExpressionOptions const&, std::__u::basic_string<char,
std::__u::char_traits<char>, std::__u::allocator<char>>*,
lldb_private::ValueObject*) lldb/source/Target/Target.cpp:2520:25
#38 0x56363980c17d in
lldb_private::CommandObjectExpression::EvaluateExpression(llvm::StringRef,
lldb_private::Stream&, lldb_private::Stream&,
lldb_private::CommandReturnObject&)
lldb/source/Commands/CommandObjectExpression.cpp:402:38
#39 0x56363980d703 in
lldb_private::CommandObjectExpression::DoExecute(llvm::StringRef,
lldb_private::CommandReturnObject&)
lldb/source/Commands/CommandObjectExpression.cpp:626:7
#40 0x563639ad9301 in lldb_private::CommandObjectRaw::Execute(char
const*, lldb_private::CommandReturnObject&)
lldb/source/Interpreter/CommandObject.cpp:769:17
#41 0x563639ac357c in
lldb_private::CommandInterpreter::HandleCommand(char const*,
lldb_private::LazyBool, lldb_private::CommandReturnObject&)
lldb/source/Interpreter/CommandInterpreter.cpp:1988:14
0x62f00023bf58 is located 47960 bytes inside of 53152-byte region
[0x62f000230400,0x62f00023d3a0)
freed by thread T0 here:
#0 0x563639384022 in operator delete(void*, unsigned long)
compiler-rt/lib/asan/asan_new_delete.cpp:164:3
#1 0x563639ddb422 in __libcpp_operator_delete<void *, unsigned long>
include/c++/v1/new:256:3
#2 0x563639ddb422 in __do_deallocate_handle_size<>
include/c++/v1/new:282:10
#3 0x563639ddb422 in __libcpp_deallocate include/c++/v1/new:296:14
#4 0x563639ddb422 in deallocate include/c++/v1/__memory/allocator.h:128:13
#5 0x563639ddb422 in deallocate
include/c++/v1/__memory/allocator_traits.h:282:13
#6 0x563639ddb422 in ~__split_buffer include/c++/v1/__split_buffer:355:9
#7 0x563639ddb422 in std::__u::vector<DWARFDebugInfoEntry,
std::__u::allocator<DWARFDebugInfoEntry>>::shrink_to_fit()
include/c++/v1/vector:1525:5
#8 0x563639dd4f07 in DWARFUnit::ClearDIEsRWLocked()
lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp:599:15
#9 0x563639dd4e6a in DWARFUnit::ScopedExtractDIEs::~ScopedExtractDIEs()
lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp:183:9
#10 0x563639df0f2c in reset llvm/include/llvm/ADT/Optional.h:88:12
#11 0x563639df0f2c in ~OptionalStorage
llvm/include/llvm/ADT/Optional.h:67:24
#12 0x563639df0f2c in ~Optional llvm/include/llvm/ADT/APInt.h:33:29
#13 0x563639df0f2c in destroy include/c++/v1/__memory/allocator.h:170:15
#14 0x563639df0f2c in
destroy<llvm::Optional<DWARFUnit::ScopedExtractDIEs>, void>
include/c++/v1/__memory/allocator_traits.h:309:13
#15 0x563639df0f2c in __base_destruct_at_end include/c++/v1/vector:833:9
#16 0x563639df0f2c in __clear include/c++/v1/vector:827:29
#17 0x563639df0f2c in
std::__u::vector<llvm::Optional<DWARFUnit::ScopedExtractDIEs>,
std::__u::allocator<llvm::Optional<DWARFUnit::ScopedExtractDIEs>>>::~vector()
include/c++/v1/vector:436:9
#18 0x563639debf7d in lldb_private::ManualDWARFIndex::Index()
lldb/source/Plugins/SymbolFile/DWARF/ManualDWARFIndex.cpp:137:1
#19 0x563639dedbf3 in
lldb_private::ManualDWARFIndex::GetGlobalVariables(DWARFUnit&,
llvm::function_ref<bool (DWARFDIE)>)
lldb/source/Plugins/SymbolFile/DWARF/ManualDWARFIndex.cpp:390:3
#20 0x563639e12633 in
SymbolFileDWARF::ParseVariablesForContext(lldb_private::SymbolContext const&)
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp:3131:18
#21 0x563639f44425 in lldb_private::CompileUnit::GetVariableList(bool)
lldb/source/Symbol/CompileUnit.cpp:213:36
#22 0x56363a04799f in
lldb_private::StackFrame::GetInScopeVariableList(bool, bool)
lldb/source/Target/StackFrame.cpp:487:25
#23 0x563639b6100e in
lldb_private::ClangExpressionDeclMap::LookupLocalVariable(lldb_private::NameSearchContext&,
lldb_private::ConstString, lldb_private::SymbolContext&,
lldb_private::CompilerDeclContext const&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:1076:32
#24 0x563639b5d7cf in
lldb_private::ClangExpressionDeclMap::FindExternalVisibleDecls(lldb_private::NameSearchContext&,
std::__u::shared_ptr<lldb_private::Module>, lldb_private::CompilerDeclContext
const&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:1434:9
#25 0x563639b5c9df in
lldb_private::ClangExpressionDeclMap::FindExternalVisibleDecls(lldb_private::NameSearchContext&)
lldb/source/Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.cpp:728:5
#26 0x563639b3df83 in
lldb_private::ClangASTSource::FindExternalVisibleDeclsByName(clang::DeclContext
const*, clang::DeclarationName)
lldb/source/Plugins/ExpressionParser/Clang/ClangASTSource.cpp:180:3
#27 0x56363d02aa30 in clang::DeclContext::lookup(clang::DeclarationName)
const clang/lib/AST/DeclBase.cpp:1706:17
#28 0x56363c2bca5b in LookupDirect(clang::Sema&, clang::LookupResult&,
clang::DeclContext const*) clang/lib/Sema/SemaLookup.cpp:1108:39
#29 0x56363c2b67f5 in CppNamespaceLookup(clang::Sema&,
clang::LookupResult&, clang::ASTContext&, clang::DeclContext*, (anonymous
namespace)::UnqualUsingDirectiveSet&) clang/lib/Sema/SemaLookup.cpp:1207:16
#30 0x56363c2b5a1e in clang::Sema::CppLookupName(clang::LookupResult&,
clang::Scope*) clang/lib/Sema/SemaLookup.cpp:1495:15
#31 0x56363c2bc0f2 in clang::Sema::LookupName(clang::LookupResult&,
clang::Scope*, bool, bool) clang/lib/Sema/SemaLookup.cpp:2259:9
#32 0x56363bdb50b8 in clang::Sema::BuildUsingDeclaration(clang::Scope*,
clang::AccessSpecifier, clang::SourceLocation, bool, clang::SourceLocation,
clang::CXXScopeSpec&, clang::DeclarationNameInfo, clang::SourceLocation,
clang::ParsedAttributesView const&, bool, bool)
clang/lib/Sema/SemaDeclCXX.cpp:12329:5
#33 0x56363bdb49f3 in clang::Sema::ActOnUsingDeclaration(clang::Scope*,
clang::AccessSpecifier, clang::SourceLocation, clang::SourceLocation,
clang::CXXScopeSpec&, clang::UnqualifiedId&, clang::SourceLocation,
clang::ParsedAttributesView const&) clang/lib/Sema/SemaDeclCXX.cpp:11833:7
#34 0x56363b49df12 in
clang::Parser::ParseUsingDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation,
clang::SourceLocation&, clang::ParsedAttributes&, clang::AccessSpecifier)
clang/lib/Parse/ParseDeclCXX.cpp:803:26
#35 0x56363b49c27d in
clang::Parser::ParseUsingDirectiveOrDeclaration(clang::DeclaratorContext,
clang::Parser::ParsedTemplateInfo const&, clang::SourceLocation&,
clang::ParsedAttributes&) clang/lib/Parse/ParseDeclCXX.cpp:512:10
#36 0x56363b46c161 in
clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&,
clang::SourceLocation*) clang/lib/Parse/ParseDecl.cpp:1797:12
#37 0x56363b55fb99 in
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributes&, clang::ParsedAttributes&)
clang/lib/Parse/ParseStmt.cpp:247:16
#38 0x56363b55cfb6 in
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
clang/lib/Parse/ParseStmt.cpp:115:20
#39 0x56363b56c048 in clang::Parser::ParseCompoundStatementBody(bool)
clang/lib/Parse/ParseStmt.cpp:1171:11
#40 0x56363b56e32d in
clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&) clang/lib/Parse/ParseStmt.cpp:2442:21
#41 0x56363b5988a8 in
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
clang/lib/Parse/Parser.cpp:1428:10
#42 0x56363b47493a in
clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*,
clang::Parser::ForRangeInit*) clang/lib/Parse/ParseDecl.cpp:2117:27
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D131437/new/
https://reviews.llvm.org/D131437
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