CodeSonar : pvm3.4.6 : Null Pointer Dereference

pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference at pvmd.c:3715

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	310.28987
Procedure:	sendmessage
Trace:	view
Modified:	Thu Nov 26 11:29:23 2009 show details hide 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 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

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

			Enter tm_mstat

tm_mstat(tp, mp)

struct task *tp;

struct pmsg *mp;

{

char *name;

struct hostd *hp;

struct waitc *wp;

if (upkstralloc(mp, &name )) {

2144

pvmlogerror("tm_mstat() bad msg format\n");

return 0;

}

hp = nametohost (hosts, name );

PVM_FREE(name);

if (!hp) {

mp = replymessage (mp );

2154

pkint(mp, PvmNoHost );

mp <= 4095

2155

sendmessage(mp );

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

					Enter tm_mstat / sendmessage

sendmessage(mp)

struct pmsg *mp;

{

struct hostd *hp = 0;

struct task *tp;

struct frag *fp;

struct pkt *pp;

int ff = FFSOM;

int dst = mp->m_dst; /* Null Pointer Dereference */ /* 13 more... */

					Exit tm_mstat / sendmessage

Preconditions

&$unknown_1030579 >= 1
numpmsgs = 0

Postconditions

errno' != 0
ff' = 1
freepmsgs.m_link' = &freepmsgs.m_link
freepmsgs.m_rlink' = &freepmsgs.m_link
bytes_after(&$heap_334639)' = &$unknown_1030579
$heap_334639' is allocated by malloc
$heap_334639' is freed
bytes_before(&$heap_334639)' = 0
hp' = 0
hp' = 0
mp' = 0
mp' = 0
name' = &$heap_334639

Change Warning 310.28987 : Null Pointer Dereference

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