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pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference  at ddpro.c:1433

Categories: LANG.MEM.NPD CWE:476
Warning ID: 122.28743
Procedure: exectasks
Trace: view
Modified: Thu Nov 26 11:27:41 2009   show 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
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Warning Location Contributes Parse Error
Other Warning Two or More Loop Iterations On Execution Path
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /kat0/fletcher/SATE/2010/pvm3/src/ddpro.c
   Enter exectasks
 1401 exectasks(mp, rmp, schtid) 
 1402         struct pmsg *mp;                /* the request message */ 
 1403         struct pmsg *rmp;               /* reply message blank */ 
 1404         int schtid;                             /* scheduler for new tasks */ 
 1405 {
 1406         struct pmsg *mp2;                       /* reply message hdl */ 
 1407         int i;
 1408         struct timeval now;
 1409         struct waitc_spawn *wxp;        /* new task parameters */ 
 1410         int munge_tenv = 0;
 1411         char tmp[255];
 1412         char *wd = 0;
 1413         char *savewd = 0;
 1414  
 1415         wxp = TALLOC(1, struct waitc_spawn, "waix");   /* Integer Overflow of Allocation Size (ID: 120.28741) */
 1416         BZERO((char*)wxp, sizeof(struct waitc_spawn));   /* Null Pointer Dereference (ID: 125.28746) */
 1417  
 1418         /* unpack message */ 
 1419  
 1420         if (upkuint(mp, &wxp->w_ptid) 
 1421         || upkstralloc(mp, &wxp->w_file) 
 1422         || upkint(mp, &wxp->w_flags) 
 1423         || upkint(mp, &wxp->w_veclen) 
 1424         || upkint(mp, &wxp->w_argc))
 1425                 goto bad;
 1426  
 1427         if (wxp->w_veclen < 1)
 1428                 goto bad;
 1429         wxp->w_vec = TALLOC(wxp->w_veclen, int, "tids");   /* Integer Overflow of Allocation Size (ID: 124.28745) */
 1430  
 1431         wxp->w_argc += 2;
true1432         wxp->w_argv = TALLOC(wxp->w_argc + 1, char*, "argv");   /* Integer Overflow of Allocation Size (ID: 123.28744) */
wxp->w_argv <= 40951433         BZERO((char*)wxp->w_argv, (wxp->w_argc + 1) * sizeof(char*));     /* Null Pointer Dereference */
Preconditions 
&$unknown_433707 >= 1
&$unknown_433712 != 0
((char*)&$heap_63667)[24] >= 1
Postconditions 
errno' != 0
$heap_63667' = &$heap_63668
bytes_after(&$heap_63667)' = 84
$heap_63667' is allocated by malloc
bytes_before(&$heap_63667)' = 0
((char*)&$heap_63667)[20]' = &$heap_63669
((char*)&$heap_63667)[12]' = 0
bytes_after(&$heap_63668)' = &$unknown_433707
$heap_63668' is allocated by malloc
bytes_before(&$heap_63668)' = 0
bytes_after(&$heap_63669)' = 4 * ((char*)&$heap_63667)[24]
$heap_63669' is allocated by malloc
$heap_63669' is allocated
bytes_before(&$heap_63669)' = 0
munge_tenv' = 0
savewd' = 0
wd' = 0
wxp' = &$heap_63667



Change Warning 122.28743 : Null Pointer Dereference

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