From: Adrian Prantl <aprantl@apple.com>
Date: Tue, 23 Apr 2019 15:39:13 +0000 (+0000)
Subject: [dsymutil] Fix use-after-free when sys::path::append grows the buffer.
X-Git-Tag: llvmorg-10-init~7222
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=03e906d9d59738db2f8d4c05b927cfa5dafd33c1;p=platform%2Fupstream%2Fllvm.git

[dsymutil] Fix use-after-free when sys::path::append grows the buffer.

<rdar://problem/50117620>

llvm-svn: 359001
---

diff --git a/llvm/tools/dsymutil/dsymutil.cpp b/llvm/tools/dsymutil/dsymutil.cpp
index 3256984..d14dff0 100644
--- a/llvm/tools/dsymutil/dsymutil.cpp
+++ b/llvm/tools/dsymutil/dsymutil.cpp
@@ -328,7 +328,7 @@ static Expected<OutputLocation> getOutputFileName(llvm::StringRef InputFile) {
     return std::move(E);
 
   llvm::sys::path::append(Path, "Contents", "Resources");
-  StringRef ResourceDir = Path;
+  std::string ResourceDir = Path;
   llvm::sys::path::append(Path, "DWARF", llvm::sys::path::filename(DwarfFile));
   return OutputLocation(Path.str(), ResourceDir.str());
 }