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Pvm : Pvm analysis 1 : Null Pointer Dereference  at pvmd.c:5362

Categories: LANG.MEM.NPD CWE:476
Warning ID: 2686.2735
Similar Warnings: 2686.2736
Procedure: master_config
Trace: View
Modified: Wed Sep 2 12:43:22 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
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Source  |  Language: C Hide Legend     
ProblemLineSource
   /u1/paul/SATE/2010/c/pvm/pvm3/src/pvmd.c
   Enter master_config
 5317 master_config(hn, argc, argv) 
 5318         char *hn;                       /* hostname or null */ 
 5319         int argc;
 5320         char **argv;
 5321 {
 5322         struct hostent *he;
 5323         struct hostd *hp;
 5324         struct hostd *hp2;
 5325         int i;
 5326         char *s;
 5327  
 5328         if (argc > 2) {
 5329                 pvmlogerror("usage: pvmd3 [-ddebugmask] [-nhostname] [hostfile]\n");
 5330                 pvmbailout(0);
 5331         }
 5332         if (argc == 2) {
 5333                 filehosts = readhostfile(argv[1]);
 5334         }
 5335         else if (s = getenv("PVMHOSTFILE")) {
 5336                 filehosts = readhostfile(s);
 5337         }
 5338         if (pvmdebmask & PDMSTARTUP) {
 5339                 if (filehosts) {
 5340                         pvmlogerror("master_config() host file:\n");
 5341                         ht_dump(filehosts);
 5342  
 5343                 } else 
 5344                         pvmlogerror("master_config() null host file\n");
 5345         }
 5346  
 5347         hosts = ht_new(1);
 5348         hosts->ht_serial = 1;
 5349         hosts->ht_master = 1;
 5350         hosts->ht_cons = 1;
 5351         hosts->ht_local = 1;
 5352  
 5353         hp = hd_new(1);
 5354         hp->hd_name = STRALLOC(hn);   /* Null Pointer Dereference (ID: 2687.2738) */
 5355         hp->hd_arch = STRALLOC(myarchname);   /* Null Pointer Dereference (ID: 2685.2737) */
 5356         hp->hd_mtu = pvmudpmtu;
 5357         hp->hd_dsig = pvmmydsig;
 5358         ht_insert(hosts, hp);
 5359         hd_unref(hp);
 5360  
true5361         hp = hd_new(0);
hp <= 40955362         hp->hd_name = STRALLOC("pvmd'");     /* Null Pointer Dereference */
Preconditions
$param_2 <= 1
((char*)&$heap_143213)[8] >= 0
((char*)&$heap_143215)[144] >= 0
((char*)&$heap_143215)[32] != 0
$input_12 >= 0
Postconditions
((char*)$heap_143215)[32]' is freed
argc' = $param_2
argv' = $param_3
atnewline' = 1
filehosts' = 0
$heap_143212' = $input_60
bytes_after(&$heap_143212)' = $input_12 + 1
$heap_143212' is allocated by malloc
$heap_143212' is a non-heap object
bytes_before(&$heap_143212)' = 0
strlen(&$heap_143212)' = $input_12
$heap_143213' = 1
bytes_after(&$heap_143213)' = 40
$heap_143213' is allocated by malloc
$heap_143213' is allocated
bytes_before(&$heap_143213)' = 0
strlen(&$heap_143213)' = 0
((char*)&$heap_143213)[16]' = 1
((char*)&$heap_143213)[20]' = 1
((char*)&$heap_143213)[12]' = 1
$heap_143215' = 0
bytes_after(&$heap_143215)' = 200
$heap_143215' is allocated by malloc
$heap_143215' is freed
bytes_before(&$heap_143215)' = 0
strlen(&$heap_143215)' = 0
((char*)&$heap_143215)[136]' = &$heap_143217
((char*)&$heap_143215)[152]' = 1
((char*)&$heap_143215)[16]' = &$heap_143221
((char*)&$heap_143215)[168]' = 1000
((char*)&$heap_143215)[176]' = &$heap_143218
((char*)&$heap_143215)[76]' = pvmmydsig
((char*)&$heap_143215)[8]' = &$heap_143220
((char*)&$heap_143215)[84]' = pvmudpmtu
((char*)&$heap_143215)[88]' = 2
((char*)&$heap_143215)[104]' = 1
((char*)&$heap_143215)[108]' = 1
((char*)&$heap_143215)[112]' = &$heap_143216
((char*)&$heap_143215)[120]' = &$heap_143219
bytes_after(&$heap_143216)' = 184
$heap_143216' is allocated by malloc
bytes_before(&$heap_143216)' = 0
((char*)&$heap_143216)[16]' = 0
((char*)&$heap_143216)[176]' = 0
((char*)&$heap_143216)[24]' = 0
((char*)&$heap_143216)[32]' = 0
((char*)&$heap_143216)[40]' = 0
bytes_after(&$heap_143217)' = 184
$heap_143217' is allocated by malloc
bytes_before(&$heap_143217)' = 0
bytes_after(&$heap_143218)' = 32
$heap_143218' is allocated by malloc
bytes_before(&$heap_143218)' = 0
((char*)&$heap_143218)[16]' = 0
((char*)&$heap_143218)[20]' = 0
((char*)&$heap_143218)[24]' = 0
bytes_after(&$heap_143219)' = 184
$heap_143219' is allocated by malloc
bytes_before(&$heap_143219)' = 0
((char*)&$heap_143219)[176]' = 0
((char*)&$heap_143219)[32]' = 0
((char*)&$heap_143219)[40]' = 0
$heap_143220' = *$param_1
bytes_after(&$heap_143220)' = strlen($param_1) + 1
$heap_143220' is allocated by malloc
bytes_before(&$heap_143220)' = 0
strlen(&$heap_143220)' = strlen($param_1)
$heap_143221' = *myarchname
bytes_after(&$heap_143221)' = strlen(myarchname) + 1
$heap_143221' is allocated by malloc
bytes_before(&$heap_143221)' = 0
strlen(&$heap_143221)' = strlen(myarchname)
$heap_143222' = 112
bytes_after(&$heap_143222)' = 6
$heap_143222' is allocated by malloc
$heap_143222' is allocated
bytes_before(&$heap_143222)' = 0
strlen(&$heap_143222)' = 5
hn' = $param_1
hosts' = &$heap_143213
hp' = 0
s' = &$heap_143212
tmbuf.tm_sec' = &$unknown_872522




Change Warning 2686.2735 : Null Pointer Dereference

Because they are very similar, this warning shares annotations with warning 2686.2736.

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