Index: ELF/SyntheticSections.cpp
===================================================================
--- ELF/SyntheticSections.cpp
+++ ELF/SyntheticSections.cpp
@@ -1843,7 +1843,9 @@
   write32(P++, NumSymbols); // nchain
 
   uint32_t *Buckets = P;
+  memset(Buckets, STN_UNDEF, NumSymbols * 4);
   uint32_t *Chains = P + NumSymbols;
+  Chains[STN_UNDEF] = STN_UNDEF;
 
   for (const SymbolTableEntry &S : InX::DynSymTab->getSymbols()) {
     Symbol *Sym = S.Sym;
Index: test/ELF/sysv-hash-no-rosegment.s
===================================================================
--- /dev/null
+++ test/ELF/sysv-hash-no-rosegment.s
@@ -0,0 +1,13 @@
+# REQUIRES: x86
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
+# RUN: ld.lld -shared --no-rosegment -o %t %t.o
+# RUN: llvm-readobj -hash-table %t | FileCheck %s
+
+# CHECK:      HashTable {
+# CHECK-NEXT:   Num Buckets: 2
+# CHECK-NEXT:   Num Chains: 2
+# CHECK-NEXT:   Buckets: [1, 0]
+# CHECK-NEXT:   Chains: [0, 0]
+# CHECK-NEXT: }
+
+callq undef@PLT