diff --git a/llvm/include/llvm/Object/ELFObjectFile.h b/llvm/include/llvm/Object/ELFObjectFile.h
--- a/llvm/include/llvm/Object/ELFObjectFile.h
+++ b/llvm/include/llvm/Object/ELFObjectFile.h
@@ -238,6 +238,7 @@
   using Elf_Rel = typename ELFT::Rel;
   using Elf_Rela = typename ELFT::Rela;
   using Elf_Dyn = typename ELFT::Dyn;
+  using Elf_Sym_Range = typename ELFT::SymRange;
 
   SectionRef toSectionRef(const Elf_Shdr *Sec) const {
     return SectionRef(toDRI(Sec), this);
@@ -625,11 +626,17 @@
   if (ESym->getType() == ELF::STT_FILE || ESym->getType() == ELF::STT_SECTION)
     Result |= SymbolRef::SF_FormatSpecific;
 
-  auto DotSymtabSecSyms = EF.symbols(DotSymtabSec);
-  if (DotSymtabSecSyms && ESym == (*DotSymtabSecSyms).begin())
-    Result |= SymbolRef::SF_FormatSpecific;
-  auto DotDynSymSecSyms = EF.symbols(DotDynSymSec);
-  if (DotDynSymSecSyms && ESym == (*DotDynSymSecSyms).begin())
+  auto CheckSymbol = [&](const Elf_Shdr *Sec) {
+    if (Expected<Elf_Sym_Range> SymbolsOrErr = EF.symbols(Sec)) {
+      if (ESym == SymbolsOrErr->begin())
+        return true;
+    } else
+      // TODO: Actually report errors helpfully.
+      consumeError(SymbolsOrErr.takeError());
+    return false;
+  };
+
+  if (CheckSymbol(DotSymtabSec) || CheckSymbol(DotDynSymSec))
     Result |= SymbolRef::SF_FormatSpecific;
 
   if (EF.getHeader()->e_machine == ELF::EM_ARM) {
diff --git a/llvm/test/Object/invalid-symtab-size.test b/llvm/test/Object/invalid-symtab-size.test
new file mode 100644
--- /dev/null
+++ b/llvm/test/Object/invalid-symtab-size.test
@@ -0,0 +1,22 @@
+## This test ensures llvm will not crash when dumping a symbol table
+## whose sh_size isn't a multiple of the symbol size (sh_size % sizeof(Elf_Sym) != 0).
+## TODO: It would be helpful if we could warn about this in future.
+
+# RUN: yaml2obj -DBITS=32 -DSIZE=33 %s -o %t.32-bit.o
+# RUN: llvm-nm %t.32-bit.o 2>&1 | FileCheck --implicit-check-not=warning %s
+# RUN: yaml2obj -DBITS=64 -DSIZE=49 %s -o %t.64-bit.o
+# RUN: llvm-nm %t.64-bit.o 2>&1 | FileCheck --implicit-check-not=warning %s
+
+#       CHECK: U
+# CHECK-EMPTY:
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS[[BITS]]
+  Data:    ELFDATA2LSB
+  Type:    ET_DYN
+  Machine: EM_386
+Sections:
+  - Name: .symtab
+    Type: SHT_SYMTAB
+    Size: [[SIZE]]