From: kpettersson
Date: October 24 2007 10:29am
Subject: bk commit into 5.0 tree (thek:1.2537) BUG#16470

Below is the list of changes that have just been committed into a local
5.0 repository of thek. When thek does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
For information on how to access the public repository
see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet@stripped, 2007-10-24 10:29:24+02:00, thek@adventure.(none) +1 -0
  Bug #16470 crash on grant if old grant tables
  
  If a user upgraded the server without running mysql_upgrade, and later tried
  to run a GRANT command on grant tables like tables_priv, the server would
  crash.
  
  This patch fixes this problem by checking if the grant tables were properly
  initialized before attempt to store any new grants.

  sql/sql_acl.cc@stripped, 2007-10-24 10:29:21+02:00, thek@adventure.(none) +3 -6
    If grant_reload fails, don't try to store new GRANTs because the grant tables
    weren't properly initialized.

diff -Nrup a/sql/sql_acl.cc b/sql/sql_acl.cc
--- a/sql/sql_acl.cc	2007-06-20 14:24:27 +02:00
+++ b/sql/sql_acl.cc	2007-10-24 10:29:21 +02:00
@@ -2780,7 +2780,7 @@ bool mysql_table_grant(THD *thd, TABLE_L
              "--skip-grant-tables");	/* purecov: inspected */
     DBUG_RETURN(TRUE);				/* purecov: inspected */
   }
-  if (rights & ~TABLE_ACLS)
+  if ((rights & ~TABLE_ACLS) || !grant_option)
   {
     my_message(ER_ILLEGAL_GRANT_FOR_TABLE, ER(ER_ILLEGAL_GRANT_FOR_TABLE),
                MYF(0));
@@ -3328,20 +3328,17 @@ void  grant_free(void)
 my_bool grant_init()
 {
   THD  *thd;
-  my_bool return_val;
   DBUG_ENTER("grant_init");
 
   if (!(thd= new THD))
     DBUG_RETURN(1);				/* purecov: deadcode */
   thd->thread_stack= (char*) &thd;
   thd->store_globals();
-  return_val=  grant_reload(thd);
+  grant_option= !grant_reload(thd);
   delete thd;
   /* Remember that we don't have a THD */
   my_pthread_setspecific_ptr(THR_THD,  0);
-  /* Set the grant option flag so we will check grants */
-  grant_option= TRUE;
-  DBUG_RETURN(return_val);
+  DBUG_RETURN(!grant_option);
 }