commit efaaf410a651dbba0a62ea8489cc1d8ab1b36d26
author David Majnemer <david.majnemer@gmail.com> Sat May 28 20:04:48 2016 +0000
committer David Majnemer <david.majnemer@gmail.com> Sat May 28 20:04:48 2016 +0000
tree b6da75856b24d8ecd2d2d490839ddb99a0d1c8d3
parent c6cb2ec36ea5a3c149b58a3bb28dccafaa8ceaa0

[COFFDumper] Make sure there is sufficient padding left in the string table

llvm-svn: 271146

llvm/tools/llvm-readobj/COFFDumper.cpp

diff --git a/llvm/tools/llvm-readobj/COFFDumper.cpp b/llvm/tools/llvm-readobj/COFFDumper.cpp
index 6fc57e8..a216a05 100644
--- a/llvm/tools/llvm-readobj/COFFDumper.cpp
+++ b/llvm/tools/llvm-readobj/COFFDumper.cpp
@@ -687,7 +687,10 @@
     default:
       break;
     }
-    Data = Data.drop_front(alignTo(SubSectionSize, 4));
+    uint32_t PaddedSize = alignTo(SubSectionSize, 4);
+    if (PaddedSize > Data.size())
+      error(object_error::parse_failed);
+    Data = Data.drop_front(PaddedSize);
   }
 }