hanchenye-llvm-project/llvm/lib/Object
Michael Trent 76d66123b2 Detect malformed LC_LINKER_COMMANDs in Mach-O binaries
Summary:
llvm-objdump can be tricked into reading beyond valid memory and
segfaulting if LC_LINKER_COMMAND strings are not null terminated. libObject
does have code to validate the integrity of the LC_LINKER_COMMAND struct,
but this validator improperly assumes linker command strings are null
terminated.

The solution is to report an error if a string extends beyond the end of
the LC_LINKER_COMMAND struct.

Reviewers: lhames, pete

Reviewed By: pete

Subscribers: rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59179

llvm-svn: 355851
2019-03-11 18:29:25 +00:00
..
Archive.cpp [libObject][NFC] Include filename in error message 2019-02-06 20:51:04 +00:00
ArchiveWriter.cpp [libObject][NFC] Use sys::path::convert_to_slash. 2019-02-19 18:14:44 +00:00
Binary.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CMakeLists.txt
COFFImportFile.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
COFFModuleDefinition.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
COFFObjectFile.cpp [COFF] Add new relocation types. 2019-01-27 19:53:36 +00:00
Decompressor.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ELF.cpp [llvm-objdump] Should print unknown d_tag in hex format 2019-03-02 04:20:28 +00:00
ELFObjectFile.cpp Improve "llvm-nm -f sysv" output for Elf files 2019-03-08 22:00:50 +00:00
Error.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
IRObjectFile.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
IRSymtab.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
MachOObjectFile.cpp Detect malformed LC_LINKER_COMMANDs in Mach-O binaries 2019-03-11 18:29:25 +00:00
MachOUniversal.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ModuleSymbolTable.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Object.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ObjectFile.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
RecordStreamer.cpp [AsmPrinter] Remove hidden flag -print-schedule. 2019-02-04 12:51:26 +00:00
RecordStreamer.h [AsmPrinter] Remove hidden flag -print-schedule. 2019-02-04 12:51:26 +00:00
SymbolSize.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SymbolicFile.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
WasmObjectFile.cpp [WebAssembly] Generalize section ordering constraints 2019-02-20 02:22:36 +00:00
WindowsResource.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00