Index: lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
===================================================================
--- lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -1609,8 +1609,7 @@
   bool add_section = true;
   bool add_to_unified = true;
   ConstString const_segname(
-      load_cmd.segname,
-      std::min<size_t>(strlen(load_cmd.segname), sizeof(load_cmd.segname)));
+      load_cmd.segname, strnlen(load_cmd.segname, sizeof(load_cmd.segname)));
 
   SectionSP unified_section_sp(
       context.UnifiedList.FindSectionByName(const_segname));
@@ -1729,8 +1728,7 @@
 
     if (add_section) {
       ConstString section_name(
-          sect64.sectname,
-          std::min<size_t>(strlen(sect64.sectname), sizeof(sect64.sectname)));
+          sect64.sectname, strnlen(sect64.sectname, sizeof(sect64.sectname)));
       if (!const_segname) {
         // We have a segment with no name so we need to conjure up segments
         // that correspond to the section's segname if there isn't already such
Index: lldb/source/Utility/ConstString.cpp
===================================================================
--- lldb/source/Utility/ConstString.cpp
+++ lldb/source/Utility/ConstString.cpp
@@ -143,7 +143,7 @@
   const char *GetConstTrimmedCStringWithLength(const char *cstr,
                                                size_t cstr_len) {
     if (cstr != nullptr) {
-      const size_t trimmed_len = std::min<size_t>(strlen(cstr), cstr_len);
+      const size_t trimmed_len = strnlen(cstr, cstr_len);
       return GetConstCStringWithLength(cstr, trimmed_len);
     }
     return nullptr;