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irssi-0.8.14 : irssi-0.8.14 analysis 2 : Null Pointer Dereference  at dcc-get.c:336

Categories: LANG.MEM.NPD CWE:476
Warning ID: 7271.28357
Procedure: dcc_get_passive
Trace: view
Modified: Thu Nov 26 11:09:02 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Parse Error
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Two or More Loop Iterations
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/dcc/dcc-resume.c
   Enter ctcp_msg_dcc_accept
 161 static void ctcp_msg_dcc_accept(IRC_SERVER_REC *server, const char *data,
 162                                 const char *nick, const char *addr,
 163                                 const char *target, DCC_REC *chat) 
 164 {
 165         FILE_DCC_REC *dcc;
 166         uoff_t size;
 167         int pasv_id;
 168  
 169         if (!dcc_ctcp_resume_parse(DCC_GET_TYPE, data, nick, &dcc, &size, &pasv_id) ||
 170             (dcc != NULL && DCC_GET(dcc)->get_type != DCC_GET_RESUME)) {   /* Null Pointer Dereference (ID: 7273.28359) */
 171                 signal_emit("dcc error ctcp", 5, "ACCEPT", data,
 172                             nick, addr, target);
 173         } else if (dcc != NULL && dcc_resume_file_check(dcc, server, size)) {
 174                 if (!dcc_is_passive(dcc))
 175                         dcc_get_connect(DCC_GET(dcc));
 176                 else 
true177                         dcc_get_passive(DCC_GET(dcc));
     /kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/dcc/dcc-get.c
     Enter ctcp_msg_dcc_accept / dcc_get_passive
 329   void dcc_get_passive(GET_DCC_REC *dcc) 
 330   {
 331           GIOChannel *handle;
 332           IPADDR own_ip;
 333           int port;
 334           char host[MAX_IP_LEN];
 335    
 336           handle = dcc_listen(net_sendbuffer_handle(dcc->server->handle),     /* Null Pointer Dereference */
dcc <= 4095337                               &own_ip, &port);
     Exit ctcp_msg_dcc_accept / dcc_get_passive
Preconditions 
&$unknown_343115 != 0
&$unknown_343117 <= ((char*)&$unknown_343116)[152] - 1
((char*)&$unknown_343116)[184] = 3
dcc_conns >= 0
Postconditions 
$unknown_343116' = &$unknown_343118
((char*)&$unknown_343116)[140]' >= 0
dcc' = 0
dcc' = &$unknown_343116
size' = &$unknown_343117



Change Warning 7271.28357 : Null Pointer Dereference

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