CodeSonar : pvm3.4.6 : Null Pointer Dereference

pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference at job.c:215

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	486.29260
Procedure:	obuf_new
Trace:	view
Modified:	Thu Nov 26 11:36:29 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/console/job.c

			Enter obuf_new

struct obuf *

obuf_new(jp, tid)

struct job *jp;

int tid;

{

struct obuf *op = jp->j_obufs->o_link;

209

struct obuf *op2;

210

211

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

212

op = op->o_link;

213

if (op->o_tid != tid) {

true

214

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

op2 <= 4095

215

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

Preconditions

jp->j_obufs->o_link->o_tid <= tid - 1
((char*)*$unknown_12101436)[8] != tid
((char*)$unknown_12101436)[8] <= tid - 1
jp->j_obufs->o_link != jp->j_obufs
*$unknown_12101436 = jp->j_obufs

Postconditions

errno' != 0
op' = *$unknown_12101436
op2' = 0

Change Warning 486.29260 : Null Pointer Dereference

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