Merge pull request #22868 from taosdata/fix/xsren/TS-3957/readLineOnW…

…indows free old pointer as realloc failed.
taosdata · Sep 12, 2023 · 86c990d · 86c990d
2 parents e832908 + 51359ad
commit 86c990d
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
@@ -862,8 +862,13 @@ int64_t taosGetLineFile(TdFilePtr pFile, char **__restrict ptrBuf) {
     }
 
     bufferSize += 512;
-    *ptrBuf = taosMemoryRealloc(*ptrBuf, bufferSize);
-    if (*ptrBuf == NULL) return -1;
+    void* newBuf = taosMemoryRealloc(*ptrBuf, bufferSize);
+    if (newBuf == NULL) {
+      taosMemoryFreeClear(*ptrBuf);
+      return -1;
+    }
+
+    *ptrBuf = newBuf;
   }
 
   (*ptrBuf)[totalBytesRead] = '\0';