CodeSonar : pvm3.4.6 : Null Pointer Dereference

pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference at lpvmgen.c:3111

Categories:	LANG.MEM.NPD CWE:476
Warning ID:	388.29092
Procedure:	pvmgetenvars
Trace:	view
Modified:	Thu Nov 26 11:31:46 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/lpvmgen.c

			Enter pvmgetenvars

pvmgetenvars(ep)

char ***ep;

{

char **xpl; /* vars to export */

3102

int mxpl; /* cur length of xpl */

3103

int nxpl; /* num vars found */

char buf[200];

char *p, *q;

int n;

if (p = getenv("PVM_EXPORT")) {

3109

mxpl = 5;

true

3110

xpl = TALLOC(mxpl, char *, "env");

xpl <= 4095

3111

xpl[0] = p - 11; /* Null Pointer Dereference */

Preconditions

$input_12 >= 0

Postconditions

errno' != 0
$heap_370661' = $input_444
bytes_after(&$heap_370661)' = $input_12 + 1
$heap_370661' is allocated by malloc
$heap_370661' is a non-heap object
bytes_before(&$heap_370661)' = 0
strlen(&$heap_370661)' = $input_12
mxpl' = 5
p' = &$heap_370661
xpl' = 0

Change Warning 388.29092 : Null Pointer Dereference

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