MDEV-25586 : SIGSEGV in my_strcasecmp_utf8mb3

Fixed NULL pointer reference to db.str
MariaDB · May 5, 2021 · f673277 · f673277
1 parent 803fa4b
commit f673277
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/sql/table.cc b/sql/table.cc
@@ -279,7 +279,8 @@ TABLE_CATEGORY get_table_category(const LEX_CSTRING *db,
   DBUG_ASSERT(name != NULL);
 
 #ifdef WITH_WSREP
-  if (my_strcasecmp(system_charset_info, db->str, "mysql") == 0 &&
+  if (db->str &&
+      my_strcasecmp(system_charset_info, db->str, "mysql") == 0 &&
       my_strcasecmp(system_charset_info, name->str, "wsrep_streaming_log") == 0)
   {
     return TABLE_CATEGORY_INFORMATION;