From a223402ffb7c4c4c8ec0a86685836dcc1cee3bf6 Mon Sep 17 00:00:00 2001
From: alisonshao <54658187+alisonshao@users.noreply.github.com>
Date: Wed, 26 Nov 2025 14:52:46 -0800
Subject: [PATCH] Add adapter_model.safetensors to corruption validation for
 LoRA (#14022)

---
 python/sglang/srt/model_loader/weight_utils.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/python/sglang/srt/model_loader/weight_utils.py b/python/sglang/srt/model_loader/weight_utils.py
index a534be5a6..4c236f715 100644
--- a/python/sglang/srt/model_loader/weight_utils.py
+++ b/python/sglang/srt/model_loader/weight_utils.py
@@ -393,7 +393,12 @@ def find_local_hf_snapshot_dir(
         for f in local_weight_files:
             base_name = os.path.basename(f)
             # Check if this is a single model file (not sharded)
-            if base_name in ["model.safetensors", "pytorch_model.safetensors"]:
+            # Include adapter_model.safetensors for LoRA adapters
+            if base_name in [
+                "model.safetensors",
+                "pytorch_model.safetensors",
+                "adapter_model.safetensors",
+            ]:
                 if not _validate_safetensors_file(f):
                     logger.info(
                         "Corrupted model file %s for %s. "