Index: lld/trunk/ELF/InputFiles.cpp
===================================================================
--- lld/trunk/ELF/InputFiles.cpp
+++ lld/trunk/ELF/InputFiles.cpp
@@ -775,9 +775,18 @@
     // Ignore local symbols.
     if (Versym && VersymIndex == VER_NDX_LOCAL)
       continue;
-
-    const Elf_Verdef *V =
-        VersymIndex == VER_NDX_GLOBAL ? nullptr : Verdefs[VersymIndex];
+    const Elf_Verdef *V = nullptr;
+    if (VersymIndex != VER_NDX_GLOBAL) {
+      if (VersymIndex >= Verdefs.size()) {
+        error("corrupt input file: version definition index " +
+              Twine(VersymIndex) + " for symbol " + Name +
+              " is greater than the maximum value " +
+              Twine(Verdefs.size() - 1) + "\n>>> symbol is defined in " +
+              toString(this));
+        continue;
+      }
+      V = Verdefs[VersymIndex];
+    }
 
     if (!Hidden)
       Symtab->addShared(Name, this, Sym, V);
Index: lld/trunk/test/ELF/corrupted-version-reference.s
===================================================================
--- lld/trunk/test/ELF/corrupted-version-reference.s
+++ lld/trunk/test/ELF/corrupted-version-reference.s
@@ -0,0 +1,10 @@
+# RUN: llvm-mc -triple=mips64-unknown-freebsd %s -filetype=obj -o %t.o
+# RUN: not ld.lld %t.o %S/Inputs/corrupt-version-reference.so -o %t.exe 2>&1 | FileCheck %s
+
+# CHECK: error: corrupt input file: version definition index 9 for symbol __cxa_finalize is greater than the maximum value 8
+# CHECK: >>> symbol is defined in {{.+}}/corrupt-version-reference.so
+
+.globl __start
+__start:
+    dla $a0, __cxa_finalize
+    nop