From 4ef8676aaf20c8a7ffbdec5f9bf930199171ace3 Mon Sep 17 00:00:00 2001
From: Cary Xu <klxu@taosdata.com>
Date: Wed, 2 Nov 2022 17:11:12 +0800
Subject: [PATCH] fix: invalid read of tsdb path

---
 include/os/osDef.h                     | 10 ----------
 include/os/osFile.h                    | 10 ++++++++++
 source/dnode/vnode/src/tsdb/tsdbOpen.c |  2 +-
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/include/os/osDef.h b/include/os/osDef.h
index f5a79934bf..297d19e21a 100644
--- a/include/os/osDef.h
+++ b/include/os/osDef.h
@@ -244,16 +244,6 @@ void syslog(int unused, const char *format, ...);
 #define TD_CHARSET_LEN  64
 #define TD_TIMEZONE_LEN 96
 
-#ifdef WINDOWS
-#define TD_PATH_MAX _MAX_PATH
-#elif defined(PATH_MAX)
-#define TD_PATH_MAX PATH_MAX
-#elif defined(_XOPEN_PATH_MAX)
-#define TD_PATH_MAX _XOPEN_PATH_MAX
-#else
-#define TD_PATH_MAX _POSIX_PATH_MAX
-#endif
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/os/osFile.h b/include/os/osFile.h
index 21e3d2e6cf..f6759d19a7 100644
--- a/include/os/osFile.h
+++ b/include/os/osFile.h
@@ -42,6 +42,16 @@ extern "C" {
 #define PATH_MAX 256
 #endif
 
+#ifdef WINDOWS
+#define TD_PATH_MAX _MAX_PATH
+#elif defined(PATH_MAX)
+#define TD_PATH_MAX PATH_MAX
+#elif defined(_XOPEN_PATH_MAX)
+#define TD_PATH_MAX _XOPEN_PATH_MAX
+#else
+#define TD_PATH_MAX _POSIX_PATH_MAX
+#endif
+
 typedef struct TdFile *TdFilePtr;
 
 #define TD_FILE_CREATE   0x0001
diff --git a/source/dnode/vnode/src/tsdb/tsdbOpen.c b/source/dnode/vnode/src/tsdb/tsdbOpen.c
index ffeaea0ce9..e109edca11 100644
--- a/source/dnode/vnode/src/tsdb/tsdbOpen.c
+++ b/source/dnode/vnode/src/tsdb/tsdbOpen.c
@@ -38,7 +38,7 @@ int tsdbOpen(SVnode *pVnode, STsdb **ppTsdb, const char *dir, STsdbKeepCfg *pKee
   int    slen = 0;
 
   *ppTsdb = NULL;
-  slen = strlen(pVnode->path) + strlen(dir) + 3;
+  slen = TD_PATH_MAX;
 
   if (slen > TD_PATH_MAX) {
     terrno = TSDB_CODE_OUT_OF_RANGE;