A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

llvm-project commit bd456297 was discovered to contain a segmentation fault via the component mlir::Block::getArgument.

llvm-project commit 6c01b5c was discovered to contain a segmentation fault via the component mlir::Type::getDialect().

llvm-project commit a0138390 was discovered to contain a segmentation fault via the component mlir::spirv::TargetEnv::TargetEnv(mlir::spirv::TargetEnvAttr).

llvm-project commit a0138390 was discovered to contain a segmentation fault via the component matchAndRewriteSortOp<mlir::sparse_tensor::SortOp>(mlir::sparse_tensor::SortOp.

llvm-project commit a0138390 was discovered to contain a segmentation fault via the component mlir::Type::isa<mlir::LLVM::LLVMVoidType.

llvm-project commit a0138390 was discovered to contain an assertion failure at !replacements.count(op) && "operation was already replaced.

llvm-project commit fdbc55a5 was discovered to contain a segmentation fault via the component mlir::IROperand<mlir::OpOperand.

LLVM a0dab4950 has a segmentation fault in mlir::outlineSingleBlockRegion. NOTE: third parties dispute this because the LLVM security policy excludes "Language front-ends ... for which a malicious input file can cause undesirable behavior."

The GetHTMLRunDir function in the scan-build utility in Clang 3.5 and earlier allows local users to obtain sensitive information or overwrite arbitrary files via a symlink attack on temporary directories with predictable names.