1 files changed, 14 insertions, 10 deletions
diff --git a/contrib/llvm-project/llvm/lib/Object/WasmObjectFile.cpp b/contrib/llvm-project/llvm/lib/Object/WasmObjectFile.cpp
index 11b9b579a8d7..168fb57935d6 100644
--- a/contrib/llvm-project/llvm/lib/Object/WasmObjectFile.cpp
+++ b/contrib/llvm-project/llvm/lib/Object/WasmObjectFile.cpp
@@ -723,17 +723,21 @@ Error WasmObjectFile::parseLinkingSectionSymtab(ReadContext &Ctx) {
       Info.Name = readString(Ctx);
       if (IsDefined) {
         auto Index = readVaruint32(Ctx);
-        if (Index >= DataSegments.size())
-          return make_error<GenericBinaryError>("invalid data symbol index",
-                                                object_error::parse_failed);
         auto Offset = readVaruint64(Ctx);
         auto Size = readVaruint64(Ctx);
-        size_t SegmentSize = DataSegments[Index].Data.Content.size();
-        if (Offset > SegmentSize)
-          return make_error<GenericBinaryError>(
-              "invalid data symbol offset: `" + Info.Name + "` (offset: " +
-                  Twine(Offset) + " segment size: " + Twine(SegmentSize) + ")",
-              object_error::parse_failed);
+        if (!(Info.Flags & wasm::WASM_SYMBOL_ABSOLUTE)) {
+          if (static_cast<size_t>(Index) >= DataSegments.size())
+            return make_error<GenericBinaryError>(
+                "invalid data segment index: " + Twine(Index),
+                object_error::parse_failed);
+          size_t SegmentSize = DataSegments[Index].Data.Content.size();
+          if (Offset > SegmentSize)
+            return make_error<GenericBinaryError>(
+                "invalid data symbol offset: `" + Info.Name +
+                    "` (offset: " + Twine(Offset) +
+                    " segment size: " + Twine(SegmentSize) + ")",
+                object_error::parse_failed);
+        }
         Info.DataRef = wasm::WasmDataReference{Index, Offset, Size};
       }
       break;
@@ -1088,7 +1092,7 @@ Error WasmObjectFile::parseCustomSection(WasmSection &Sec, ReadContext &Ctx) {
   } else if (Sec.Name == "target_features") {
     if (Error Err = parseTargetFeaturesSection(Ctx))
       return Err;
-  } else if (Sec.Name.startswith("reloc.")) {
+  } else if (Sec.Name.starts_with("reloc.")) {
     if (Error Err = parseRelocSection(Sec.Name, Ctx))
       return Err;
   }