Commit db56fd00 authored by Ramil Kalimullin's avatar Ramil Kalimullin
Browse files

Fix for bug#37669: Server crash by setting "@@session.innodb_table_locks" 

Problem: reading/writing data from/to an address without proper
alignment leads to SIGBUS on some platforms.

Fix: use the correct data type when dereferencing variable values.
parent 449d359f

sql/sql_plugin.cc

+2 −2
Original line number Diff line number Diff line
@@ -1882,7 +1882,7 @@ static int check_func_bool(THD *thd, struct st_mysql_sys_var *var, 
    }

    result= (int) tmp;

  }

  *(int*)save= -result;

  *(my_bool *) save= -result;

  return 0;

err:

  my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->name, strvalue);
@@ -2063,7 +2063,7 @@ static int check_func_set(THD *thd, struct st_mysql_sys_var *var, 
static void update_func_bool(THD *thd, struct st_mysql_sys_var *var,

                             void *tgt, const void *save)

{

  *(my_bool *) tgt= *(int *) save ? 1 : 0;

  *(my_bool *) tgt= *(my_bool *) save ? TRUE : FALSE;

}