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Georgii Rymar d2790aee19 [llvm-readobj] - Validate the DT_STRSZ value to avoid crash. 
It is possible to trigger a crash when a dynamic symbol has a
broken (too large) st_name and the DT_STRSZ is also broken.

We have the following code in the `Elf_Sym_Impl<ELFT>::getName`:

```
template <class ELFT>
Expected<StringRef> Elf_Sym_Impl<ELFT>::getName(StringRef StrTab) const {
  uint32_t Offset = this->st_name;
  if (Offset >= StrTab.size())
    return createStringError(object_error::parse_failed,
                             "st_name (0x%" PRIx32
                             ") is past the end of the string table"
                             " of size 0x%zx",
                             Offset, StrTab.size());
...
```

The problem is that `StrTab` here is a `ELFDumper::DynamicStringTab` member
which is not validated properly on initialization. So it is possible to bypass the
`if` even when the `st_name` is huge.

This patch fixes the issue.

Differential revision: https://reviews.llvm.org/D82201
2020-06-22 15:24:59 +03:00
benchmarks
bindings Fix go bindings after FixedVectorType -> VectorType change. 2020-05-15 16:37:57 -07:00
cmake Make ninja smart console builds more pretty 2020-06-22 06:35:13 -04:00
docs [LangRef] Fix sphinx warnings 2020-06-21 13:51:07 +02:00
examples [docs/examples] As part of using inclusive language within the llvm 2020-06-20 00:51:18 -07:00
include OptimizationRemarkEmitter.h - reduce unnecessary Function.h include to forward declaration. NFC. 2020-06-22 12:35:32 +01:00
lib [DAG] SimplifyMultipleUseDemandedBits - drop unnecessary *_EXTEND_VECTOR_INREG cases 2020-06-22 12:35:32 +01:00
projects
resources
runtimes [CMake] Fix runtimes build for host Windows (default target) 2020-06-20 10:44:22 +02:00
test [llvm-readobj] - Validate the DT_STRSZ value to avoid crash. 2020-06-22 15:24:59 +03:00
tools [llvm-readobj] - Validate the DT_STRSZ value to avoid crash. 2020-06-22 15:24:59 +03:00
unittests [clang/llvm] As part of using inclusive language within 2020-06-20 16:03:58 -07:00
utils [clang/llvm] As part of using inclusive language within 2020-06-20 16:03:58 -07:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes
.gitignore Continue removing llgo. 2020-02-10 10:33:58 -08:00
CMakeLists.txt Automatically configure MLIR when flang is enabled 2020-05-27 07:31:49 +00:00
CODE_OWNERS.TXT Make myself code owner of InferAddressSpaces 2020-06-08 21:26:01 -04:00
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT

README.txt 

The LLVM Compiler Infrastructure
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
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LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
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If you are writing a package for LLVM, see docs/Packaging.rst for our
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