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irssi-0.8.14 : irssi-0.8.14 analysis 2 : Null Pointer Dereference  at irc-expandos.c:89

Categories: LANG.MEM.NPD CWE:476 Warning ID: 7238.28319 Similar Warnings: 7238.28320 7238.28320       Procedure: expando_cumode Trace: view Modified: Thu Nov 26 11:08:42 2009   show details hide details

Priority: None State: None Finding: None Owner: None   edit properties

Source  |  Language: C

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Problem Line Source       /kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/core/irc-expandos.c       Enter expando_cumode   86   static char *expando_cumode(SERVER_REC *server, void *item, int *free_ret)    87   {   88           if (IS_IRC_CHANNEL(item) && CHANNEL(item)->ownnick) {   /* Null Pointer Dereference (ID: 7239.28321) */ x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/core/irc-channels.h 11 #define IS_IRC_CHANNEL(channel) \ 12         (IRC_CHANNEL(channel) ? TRUE : FALSE) x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/irc/core/irc-channels.h 8 #define IRC_CHANNEL(channel) \ 9         PROTO_CHECK_CAST(CHANNEL(channel), IRC_CHANNEL_REC, chat_type, "IRC") x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/chat-protocols.h 29 #define PROTO_CHECK_CAST(object, cast, type_field, id) \ 30         ((cast *) chat_protocol_check_cast(object, \ 31                                 offsetof(cast, type_field), id)) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/channels.h 7 #define CHANNEL(channel) \ 8         MODULE_CHECK_CAST_MODULE(channel, CHANNEL_REC, type, \ 9                               "WINDOW ITEM TYPE", "CHANNEL") x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/modules.h 67 #define MODULE_CHECK_CAST_MODULE(object, cast, type_field, module, id) \ 68         ((cast *) module_check_cast_module(object, \ 69                                 offsetof(cast, type_field), module, id)) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) x /usr/include/glib-2.0/glib/gmacros.h 179 #define TRUE    (!FALSE) x /usr/include/glib-2.0/glib/gmacros.h 175 #define FALSE   (0) x /usr/include/glib-2.0/glib/gmacros.h 175 #define FALSE   (0) x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/channels.h 7 #define CHANNEL(channel) \ 8         MODULE_CHECK_CAST_MODULE(channel, CHANNEL_REC, type, \ 9                               "WINDOW ITEM TYPE", "CHANNEL") x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/modules.h 67 #define MODULE_CHECK_CAST_MODULE(object, cast, type_field, module, id) \ 68         ((cast *) module_check_cast_module(object, \ 69                                 offsetof(cast, type_field), module, id)) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) true 89                 char prefix = NICK(CHANNEL(item)->ownnick)->prefixes[0];     /* Null Pointer Dereference */ x Problem true x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/nicklist.h 5 #define NICK(server) \ 6         MODULE_CHECK_CAST(server, NICK_REC, type, "NICK") x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/modules.h 65 #define MODULE_CHECK_CAST(object, cast, type_field, id) \ 66         ((cast *) module_check_cast(object, offsetof(cast, type_field), id)) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER) x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/channels.h 7 #define CHANNEL(channel) \ 8         MODULE_CHECK_CAST_MODULE(channel, CHANNEL_REC, type, \ 9                               "WINDOW ITEM TYPE", "CHANNEL") x /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/modules.h 67 #define MODULE_CHECK_CAST_MODULE(object, cast, type_field, module, id) \ 68         ((cast *) module_check_cast_module(object, \ 69                                 offsetof(cast, type_field), module, id)) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 414 #define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)           /kat0/fletcher/SATE/2010/irssi-0.8.14/src/core/modules.c           Enter expando_cumode / module_check_cast   31       void *module_check_cast(void *object, int type_pos, const char *id)    32       {   33               return object == NULL || module_find_id(id, x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 403 #define NULL ((void *)0) true 34                       G_STRUCT_MEMBER(int, object, type_pos)) == -1 ? NULL : object; x Problem true x /usr/include/glib-2.0/glib/gmacros.h 212 #define G_STRUCT_MEMBER(member_type, struct_p, struct_offset)   \ 213     (*(member_type*) G_STRUCT_MEMBER_P ((struct_p), (struct_offset))) x /usr/include/glib-2.0/glib/gmacros.h 210 #define G_STRUCT_MEMBER_P(struct_p, struct_offset)   \ 211     ((gpointer) ((guint8*) (struct_p) + (glong) (struct_offset))) x /usr/lib/gcc/i686-pc-linux-gnu/4.3.2/include/stddef.h 403 #define NULL ((void *)0) module_check_cast$return <= 4095 35       }  x Problem module_check_cast$return <= 4095           Exit expando_cumode / module_check_cast

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Change Warning 7238.28319 : Null Pointer Dereference

Because they are very similar, this warning shares annotations with warning 7238.28320.

Priority:	None                         P0: HighP1: MediumP2: LowSuppressedOther...
State:	AssignedFixedInvalidLaterNewNone                         Other...
Finding:	Don't CareDon't KnowFalse PositiveNone                         True PositiveUnconfirmedOther...
Owner:	testbotNone
Note:

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