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irssi-0.8.14 : irssi-0.8.14 analysis 2 : Null Pointer Dereference  at TextBuffer.c:33

Categories: LANG.MEM.NPD CWE:476
Warning ID: 7406.28507
Procedure: XS_Irssi__TextUI__Line_prev
Trace: view
Modified: Thu Nov 26 11:19:36 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Warning Location
Contributes
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
Comment Macro Preprocessor
Include Keyword Preprocessed Away

Source  |  Language: C Hide Legend     
ProblemLineSource
   /kat0/fletcher/SATE/2010/irssi-0.8.14/src/perl/textui/TextBuffer.c
   Enter XS_Irssi__TextUI__Line_prev
 19 XS(XS_Irssi__TextUI__Line_prev) 
 20 {
 21 #ifdef dVAR 
 22     dVAR; dXSARGS;
 23 #else 
 24     dXSARGS; 
 25 #endif 
 26     if (items != 1)
 27        Perl_croak(aTHX_ "Usage: %s(%s)", "Irssi::TextUI::Line::prev", "line");
 28     PERL_UNUSED_VAR(cv); /* -W */ 
 29     {
true30         Irssi__TextUI__Line     line = irssi_ref_object(ST(0));
 31         Irssi__TextUI__Line     RETVAL;
 32 #line 14 "TextBuffer.xs"
line <= 409533         RETVAL = line->prev;     /* Null Pointer Dereference */
Postconditions 
$unknown_1947897' = $unknown_1947897 - 4
items' != 1
line' = 0



Change Warning 7406.28507 : Null Pointer Dereference

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