diff options
Diffstat (limited to 'llvm/lib/Object/ELF.cpp')
| -rw-r--r-- | llvm/lib/Object/ELF.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/Object/ELF.cpp b/llvm/lib/Object/ELF.cpp index 55dd0c8..0ac4e7a 100644 --- a/llvm/lib/Object/ELF.cpp +++ b/llvm/lib/Object/ELF.cpp @@ -560,7 +560,11 @@ Expected<typename ELFT::DynRange> ELFFile<ELFT>::dynamicEntries() const { for (const Elf_Phdr &Phdr : *ProgramHeadersOrError) { if (Phdr.p_type == ELF::PT_DYNAMIC) { - Dyn = ArrayRef(reinterpret_cast<const Elf_Dyn *>(base() + Phdr.p_offset), + const uint8_t *DynOffset = base() + Phdr.p_offset; + if (DynOffset > end()) + return createError( + "dynamic section offset past file size: corrupted ELF"); + Dyn = ArrayRef(reinterpret_cast<const Elf_Dyn *>(DynOffset), Phdr.p_filesz / sizeof(Elf_Dyn)); break; } |