CodeSonar : pvm3.4.6 : Null Pointer Dereference

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	80.28670
Procedure:	tev_send_endtask
Trace:	view
Modified:	Thu Nov 26 11:27:20 2009 show details hide details

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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

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Problem	Line	Source

			/kat0/fletcher/SATE/2010/pvm3/src/pvmdtev.c

			Enter tev_send_endtask

	400		tev_send_endtask( dst, ctx, tag, tid, status, usec, uusec, ssec, susec )
	401		int dst;
	402		int ctx;
	403		int tag;
	404		int tid;
	405		int status;
	406		long usec;
	407		long uusec;
	408		long ssec;
	409		long susec;
	410		{
			...
	413		static int end = 0;
	414
	415		struct timeval now;
	416
	417		struct pmsg *mp;
	418
	419		int flag;
	420		int tmp;
	421		int i;
	422

mp = mesg_new ( 0 );

mp->m_ctx = ctx; /* Null Pointer Dereference */

Preconditions

numpmsgs = 0

Postconditions

errno' != 0
freepmsgs.m_link' = &freepmsgs.m_link
freepmsgs.m_rlink' = &freepmsgs.m_link
mp' = 0