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| author | Filipe Cabecinhas <me@filcab.net> | 2015-01-15 23:50:44 +0000 |
|---|---|---|
| committer | Filipe Cabecinhas <me@filcab.net> | 2015-01-15 23:50:44 +0000 |
| commit | c552c9abcef103e45a7e604116d3046ecb240925 (patch) | |
| tree | 91dd28e2288d3e98f94200a373857b091d5dbf7d /llvm/lib/Object/MachOObjectFile.cpp | |
| parent | 13023a1af6965374b0c253e8092cc36fbb46dcab (diff) | |
| download | llvm-c552c9abcef103e45a7e604116d3046ecb240925.zip llvm-c552c9abcef103e45a7e604116d3046ecb240925.tar.gz llvm-c552c9abcef103e45a7e604116d3046ecb240925.tar.bz2 | |
Fix edge case when Start overflowed in 32 bit mode
llvm-svn: 226229
Diffstat (limited to 'llvm/lib/Object/MachOObjectFile.cpp')
| -rw-r--r-- | llvm/lib/Object/MachOObjectFile.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp index a367a49..4f54407 100644 --- a/llvm/lib/Object/MachOObjectFile.cpp +++ b/llvm/lib/Object/MachOObjectFile.cpp @@ -336,8 +336,9 @@ std::error_code MachOObjectFile::getSymbolName(DataRefImpl Symb, StringRef StringTable = getStringTableData(); MachO::nlist_base Entry = getSymbolTableEntryBase(this, Symb); const char *Start = &StringTable.data()[Entry.n_strx]; - if (Start >= getData().end()) - report_fatal_error("Symbol name entry points past end of file."); + if (Start < getData().begin() || Start >= getData().end()) + report_fatal_error( + "Symbol name entry points before beginning or past end of file."); Res = StringRef(Start); return object_error::success; } |