From 6915b2d5ea4abb0174f4b0bff6dcb8c1b985f1a3 Mon Sep 17 00:00:00 2001
From: didebughu <didebughu@gmail.com>
Date: Tue, 23 Dec 2025 16:04:57 +0800
Subject: [PATCH] fix: Referrers() may return nil

---
 pkg/analyzer/defer_only.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkg/analyzer/defer_only.go b/pkg/analyzer/defer_only.go
index ca97ad2..701c7c6 100644
--- a/pkg/analyzer/defer_only.go
+++ b/pkg/analyzer/defer_only.go
@@ -292,6 +292,10 @@ func getAction(instr ssa.Instruction, targetTypes []any) action {
 			return actionReturned
 		}
 
+		if instr.Addr.Referrers() == nil {
+			return actionNoOp
+		}
+
 		if len(*instr.Addr.Referrers()) == 0 {
 			return actionNoOp
 		}
@@ -378,6 +382,10 @@ func checkDeferred(pass *analysis.Pass, instrs *[]ssa.Instruction, targetTypes [
 				return
 			}
 		case *ssa.Store:
+			if instr.Addr.Referrers() == nil {
+				return
+			}
+
 			if len(*instr.Addr.Referrers()) == 0 {
 				return
 			}