From fb67b1c13d7cb8339a181b6e1a5959fe245ff0dd Mon Sep 17 00:00:00 2001
From: wangdl <wangdl@longde.cloud>
Date: Sat, 6 Jun 2026 12:55:37 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20#39=20from=5Fbytes=5Fseparate=20?=
 =?UTF-8?q?=E6=A3=80=E6=9F=A5=20RustCallStatus=20=E8=BF=94=E5=9B=9E?=
 =?UTF-8?q?=E5=80=BC?=
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分配失败时将 out 参数置零并 return，避免返回未初始化栈垃圾。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 crates/zx_document_ffi/src/lib.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/crates/zx_document_ffi/src/lib.rs b/crates/zx_document_ffi/src/lib.rs
index d9a3b88..dd240f8 100644
--- a/crates/zx_document_ffi/src/lib.rs
+++ b/crates/zx_document_ffi/src/lib.rs
@@ -157,6 +157,15 @@ pub extern "C" fn ffi_zx_document_ffi_rustbuffer_from_bytes_separate(
             &mut call_status,
         )
     };
+    // Check if allocation succeeded
+    if call_status.code != uniffi::RustCallStatusCode::Success {
+        unsafe {
+            *out_capacity = 0;
+            *out_len = 0;
+            *out_data = std::ptr::null_mut();
+        }
+        return;
+    }
     unsafe {
         *out_capacity = buf.capacity() as u64;
         *out_len = buf.len() as u64;