Theoretical danger of using freed memory

[Medland, Bill]

 <<diff27.txt>> 
-------------- next part --------------
Bill Medland (medbi01 at accpac.com)
Prevent danger of accessing freed memory.  (Theoretical but unlikely bug).

Index: wine/server/select.c
===================================================================
RCS file: /home/wine/wine/server/select.c,v
retrieving revision 1.12
diff -u -r1.12 select.c
--- wine/server/select.c	2000/01/25 01:40:27	1.12
+++ wine/server/select.c	2001/11/06 20:31:58
@@ -58,7 +58,11 @@
             if (!(newusers = realloc( poll_users, new_count * sizeof(*poll_users) ))) return -1;
             if (!(newpoll = realloc( pollfd, new_count * sizeof(*pollfd) )))
             {
-                free( newusers );
+                if (allocated_users)
+                    poll_users = newusers;
+                else
+                    free( newusers );
+                obj->select = -1;
                 return -1;
             }
             poll_users = newusers;
@@ -80,6 +84,7 @@
 void remove_select_user( struct object *obj )
 {
     int user = obj->select;
+    assert( user >= 0 );
     assert( poll_users[user] == obj );
     pollfd[user].fd = -1;
     pollfd[user].events = 0;