From 4097ff9914e3bd2340e14f843b6afdab6e58c477 Mon Sep 17 00:00:00 2001
From: gaoshutao <1779227906@qq.com>
Date: Tue, 2 Sep 2025 17:01:48 +0800
Subject: [PATCH] fix:nullptr check for compress2

---
 compress.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compress.c b/compress.c
index f43bacf7a..1b3c6fd22 100644
--- a/compress.c
+++ b/compress.c
@@ -26,6 +26,10 @@ int ZEXPORT compress2(Bytef *dest, uLongf *destLen, const Bytef *source,
     const uInt max = (uInt)-1;
     uLong left;
 
+    if (destLen == NULL || dest == NULL || source == NULL) {
+        return Z_STREAM_ERROR;
+    }
+
     left = *destLen;
     *destLen = 0;