CodeSonar : Irssi : Null Pointer Dereference

Irssi : Irssi analysis 1 : Null Pointer Dereference at servers.c:652

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	2178.2183
Procedure:	server_change_nick
Trace:	View
Modified:	Wed Sep 2 11:51:47 2009 show details hide details

Priority:	None
State:	None
Finding:	None
Owner:	None
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Legend	[ X ]
Warning Location Contributes Parse Error Other Warning Two or More Loop Iterations On Execution Path Comment Macro Preprocessor Include Keyword Preprocessed Away

Legend
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

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Problem	Line	Source

			/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/irc/core/irc-nicklist.c

			Enter event_nick

383

static void event_nick(IRC_SERVER_REC *server, const char *data,

384

const char *orignick)

{

char *params, *nick;

g_return_if_fail(data != NULL);

389

g_return_if_fail(orignick != NULL);

390

391

params = event_get_params(data, 1, &nick );

392

393

if (g_strcasecmp(orignick, server->nick) == 0) {

394

/* You changed your nick */

395

if (server->last_nick != NULL &&

396

g_strcasecmp(server->last_nick, nick) == 0) {

397

/* changed with /NICK - keep it as wanted nick */

398

g_free(server->connrec->nick);

399

server->connrec->nick = g_strdup(nick);

}

server_change_nick(SERVER (server ), nick );

					/u1/paul/SATE/2010/c/irssi/irssi-0.8.14/src/core/servers.c

					Enter event_nick / server_change_nick

$param_1 <= 4095

650

void server_change_nick(SERVER_REC *server, const char *nick)

651

{

server <= 4095

652

g_free(server->nick); /* Null Pointer Dereference */

					Exit event_nick / server_change_nick

Preconditions

$param_2 != 0
$param_3 != 0
((char*)$param_1)[304] != 0

Postconditions

_g_boolean_var_' = 1
_g_boolean_var_' = 1
data' = $param_2
nick' = &$unknown_425584
nick' = &$unknown_425584
orignick' = $param_3
server' = $param_1
server' = 0

Change Warning 2178.2183 : Null Pointer Dereference

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