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Irssi : Irssi analysis 1 : Null Pointer Dereference  at window-items.c:217

Categories: LANG.MEM.NPD CWE:476
Warning ID: 2337.2347
Procedure: window_item_find_window
Trace: View
Modified: Wed Sep 2 12:16:13 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Warning Location
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Parse Error
Other Warning
Two or More Loop Iterations
On Execution Path
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Warning Location Contributes Parse Error
Other Warning Two or More Loop Iterations On Execution Path
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/perl/ui/Window.c
   Enter XS_Irssi__UI__Window_item_find
 864 XS(XS_Irssi__UI__Window_item_find) 
 865 {
 866 #ifdef dVAR 
 867     dVAR; dXSARGS;
 868 #else 
 869     dXSARGS; 
 870 #endif 
 871     if (items != 3)
 872        Perl_croak(aTHX_ "Usage: %s(%s)", "Irssi::UI::Window::item_find", "window, server, name");
 873     PERL_UNUSED_VAR(cv); /* -W */ 
 874     {
true875         Irssi__UI__Window       window = irssi_ref_object(ST(0));
 876         Irssi__Server   server = irssi_ref_object(ST(1));
 877         char *  name = (char *)SvPV_nolen(ST(2));
 878         Irssi__Windowitem       RETVAL;
 879 #line 242 "Window.xs"
window <= 4095880         RETVAL = window_item_find_window(window, server, name);
     /u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/fe-common/core/window-items.c
     Enter XS_Irssi__UI__Window_item_find / window_item_find_window
 211   WI_ITEM_REC *window_item_find_window(WINDOW_REC *window,
$param_1 <= 4095212                                        void *server, const char *name) 
 213   {
 214           CHANNEL_REC *channel;
 215           GSList *tmp;
 216    
window <= 4095217           for (tmp = window->items; tmp != NULL; tmp = tmp->next) {     /* Null Pointer Dereference */
     Exit XS_Irssi__UI__Window_item_find / window_item_find_window
Postconditions 
_svi' = &$unknown_2816060
$unknown_2816033' = $unknown_2816033 - 4
cv' = $param_2
items' != 3
my_perl' = $param_1
name' = ((char*)&$unknown_2816060)[16]
name' = ((char*)&$unknown_2816060)[16]
server' = server'
window' = 0
window' = 0



Change Warning 2337.2347 : Null Pointer Dereference

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