Crash in clang::ASTReader::get(llvm::StringRef)

Similar reports
Problem #799990
Component
llvm
Last affected version
0:20.1.8-4.fc42
Executable
/usr/bin/clangd
Error name
SIGSEGV 11
First occurrence
2026-08-24
Last occurrence
2026-09-07
Unique reports
2
Quality
-42

Statistics

Operating system Unique / Total count
Fedora 42 2 / 2
Operating system Count
Fedora 42 2
Architecture Count
x86_64 2
Related packages Count
clang-tools-extra 2
 0:20.1.8-4.fc42 2

Packages names with count less than the total count of reports are most probably not the cause of the problem.

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Backtrace

Frame # Function Binary Source or offset Line
1
clang::ASTReader::get(llvm::StringRef)
/lib64/libclang-cpp.so.20.1 0x26158a4
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
2
clang::IdentifierTable::get(llvm::StringRef)
/usr/bin/clangd 0x29c4a1
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
3
clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&)
/usr/bin/clangd 0x6c3cbe
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
4
clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor::MatchVisitor::visitMatch(clang::ast_matchers::BoundNodes const&)
/lib64/libclang-cpp.so.20.1 0xd56e39
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
5
clang::ast_matchers::internal::BoundNodesTreeBuilder::visitMatches(clang::ast_matchers::internal::BoundNodesTreeBuilder::Visitor*)
/lib64/libclang-cpp.so.20.1 0xd958fb
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
6
clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor::matchWithFilter(clang::DynTypedNode const&)
/lib64/libclang-cpp.so.20.1 0xd56633
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
7
clang::RecursiveASTVisitor<clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor>::TraverseBinaryOperator(clang::BinaryOperator*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*)
/lib64/libclang-cpp.so.20.1 0xd79055
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
8
clang::RecursiveASTVisitor<clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*)
/lib64/libclang-cpp.so.20.1 0xd68115
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
9
clang::RecursiveASTVisitor<clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor>::TraverseFunctionHelper(clang::FunctionDecl*)
/lib64/libclang-cpp.so.20.1 0xd9481d
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
10
clang::RecursiveASTVisitor<clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor>::TraverseFunctionDecl(clang::FunctionDecl*)
/lib64/libclang-cpp.so.20.1 0xd5b753
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
11
clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor::TraverseDecl(clang::Decl*)
/lib64/libclang-cpp.so.20.1 0xd5881f
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
12
clang::RecursiveASTVisitor<clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor>::TraverseTranslationUnitDecl(clang::TranslationUnitDecl*)
/lib64/libclang-cpp.so.20.1 0xd58ac8
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
13
clang::ast_matchers::internal::(anonymous namespace)::MatchASTVisitor::TraverseDecl(clang::Decl*)
/lib64/libclang-cpp.so.20.1 0xd5843f
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
14
clang::ast_matchers::MatchFinder::matchAST(clang::ASTContext&)
/lib64/libclang-cpp.so.20.1 0xd1f879
Build id: 8d14003ce6f2124dc54330f17d08c091bcd8dfbf 		-
15
clang::clangd::ParsedAST::build(llvm::StringRef, clang::clangd::ParseInputs const&, std::unique_ptr<clang::CompilerInvocation, std::default_delete<clang::CompilerInvocation> >, llvm::ArrayRef<clang::clangd::Diag>, std::shared_ptr<clang::clangd::PreambleData const>)
/usr/bin/clangd 0x30674e
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
16
void llvm::detail::UniqueFunctionBase<void>::CallImpl<clang::clangd::(anonymous namespace)::ASTWorker::runWithAST(llvm::StringRef, llvm::unique_function<void (llvm::Expected<clang::clangd::InputsAndAST>)>, clang::clangd::TUScheduler::ASTActionInvalidation)::$_0>(void*)
/usr/bin/clangd 0x3b6cb0
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
17
clang::clangd::(anonymous namespace)::ASTWorker::runTask(llvm::StringRef, llvm::function_ref<void ()>)
/usr/bin/clangd 0x3ace67
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
18
void llvm::detail::UniqueFunctionBase<void>::CallImpl<clang::clangd::(anonymous namespace)::ASTWorker::create(llvm::StringRef, clang::clangd::GlobalCompilationDatabase const&, clang::clangd::TUScheduler::ASTCache&, clang::clangd::TUScheduler::HeaderIncluderCache&, clang::clangd::AsyncTaskRunner*, clang::clangd::Semaphore&, clang::clangd::TUScheduler::Options const&, clang::clangd::ParsingCallbacks&)::$_0>(void*)
/usr/bin/clangd 0x3aaa3a
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
19
void* llvm::thread::ThreadProxy<std::tuple<clang::clangd::AsyncTaskRunner::runAsync(llvm::Twine const&, llvm::unique_function<void ()>)::$_1> >(void*) [clone .llvm.7633507556885729804]
/usr/bin/clangd 0x527115
Build id: 7ac6322a16fb862fbd324bedc16d2be5c952201e 		-
20
start_thread
/lib64/libc.so.6 0x71f34
Build id: 17a908195ad4110e58083fc22fd8ac486d01da53 		-
21
__clone3
/lib64/libc.so.6 0xf536c
Build id: 17a908195ad4110e58083fc22fd8ac486d01da53 		-