CodeSonar : pvm3.4.6 : Null Pointer Dereference

pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference at lpvmcat.c:256

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	362.29048
Procedure:	tobuf_new
Trace:	view
Modified:	Thu Nov 26 11:30:33 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/lpvmcat.c

			Enter tobuf_new

245

static struct tobuf *

tobuf_new(tid)

int tid;

{

struct tobuf *op = tobuflist->o_link;

250

struct tobuf *op2;

251

252

while (op != tobuflist && op->o_tid < tid)

253

op = op->o_link;

254

if (op->o_tid != tid) {

true

255

op2 = TALLOC(1, struct tobuf, "tobuf");

op2 <= 4095

256

BZERO((char*)op2, sizeof(struct tobuf)); /* Null Pointer Dereference */

Preconditions

((char*)*$unknown_2688075)[8] != tid
tobuflist->o_link->o_tid <= tid - 1
((char*)$unknown_2688075)[8] <= tid - 1
tobuflist->o_link != tobuflist
tobuflist = *$unknown_2688075

Postconditions

errno' != 0
op' = *$unknown_2688075
op2' = 0

Change Warning 362.29048 : Null Pointer Dereference

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