Text  |   XML   |   Visible Warnings:

pvm3.4.6 : pvm3.4.6 analysis 2 : Null Pointer Dereference  at pvmd.c:1002

Categories: LANG.MEM.NPD CWE:476
Warning ID: 271.28941
Procedure: main
Trace: view
Modified: Thu Nov 26 11:28:59 2009   show details
 
Priority: None
State: None
Finding: None
Owner: None
  edit properties

Legend [ X ]
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 Hide Legend     
ProblemLineSource
   /kat0/fletcher/SATE/2010/pvm3/src/pvmd.c
   Enter main
 947 main(argc, argv) 
 948         int argc;
 949         char **argv;
 950 {
 951         int i, j;
 952         char *name = "";
 953         struct passwd *pe;
 954         int testmode = 0;
 955         struct timeval tnow;
 956         char buf[128];
 957  
 958 #ifndef WIN32 
 959         /* check for extension config options */ 
 960         check_ext_input();
 961  
 962         /* make sure 0, 1, 2 are in use */ 
 963         (void)open("/dev/null", O_RDONLY, 0);
 964         (void)open("/dev/null", O_RDONLY, 0);   /* File System Race Condition (ID: 272.28943) */
 965         (void)open("/dev/null", O_RDONLY, 0);   /* File System Race Condition (ID: 272.28942) */
 966 #else 
 967         /* WSAStartup has to be called before any socket command */ 
 968         /* can be executed. Why ? Ask Bill   */ 
 969  
 970         if (WSAStartup(0x0101, &WSAData) != 0) {
 971               printf("\nWSAStartup() failed\n");
 972               ExitProcess(1);
 973         }
 974         setsockopt(INVALID_SOCKET,SOL_SOCKET,SO_OPENTYPE,
 975                         (char *)&nAlert,sizeof(int));
 976         osinfo=malloc(sizeof(OSVERSIONINFO));
 977         osinfo->dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 978         GetVersionEx(osinfo);
 979         os_is_NT= ( osinfo->dwPlatformId == VER_PLATFORM_WIN32_NT); 
 980 #endif 
 981  
 982         {
 983                 char *p;
 984                 if (p = getenv("PVMDDEBUG"))
 985                         pvmdebmask = pvmstrtoi(p);
 986         }
 987  
 988 #ifndef WIN32 
 989         if ((pvm_useruid = getuid()) == -1) {
 990                 pvmlogerror("main() can't getuid()\n");
 991                 pvmbailout(0);
 992         }
 993         pvmchkuid( pvm_useruid );
 994 #else 
 995         username = MyGetUserName(); 
 996 #endif 
 997  
 998         pvmsetlog(3);
 999  
 1000 #ifndef WIN32 
 1001         if (pe = getpwuid(pvm_useruid))
true1002                 username = STRALLOC(pe->pw_name);     /* Null Pointer Dereference */
Preconditions 
((char*)&$heap_310148)[1] <= 120
((char*)&$heap_310148)[1] >= 48
$input_12 >= 1
$input_194148 >= 0
$input_444 = 48
td = 0
Postconditions 
*stdin' is allocated by fopen
bytes_before(stdin)' = 0
errno' != 0
$heap_310145' is allocated by open
$heap_310145' is allocated
$heap_310146' is allocated by open
$heap_310146' is allocated
$heap_310147' is allocated by open
$heap_310147' is allocated
$heap_310148' = $input_444
bytes_after(&$heap_310148)' = $input_12 + 1
$heap_310148' is allocated by malloc
$heap_310148' is a non-heap object
bytes_before(&$heap_310148)' = 0
strlen(&$heap_310148)' = $input_12
$heap_310149' = $input_194156
bytes_after(&$heap_310149)' = $input_194148 + 1
$heap_310149' is allocated by malloc
$heap_310149' is a non-heap object
bytes_before(&$heap_310149)' = 0
strlen(&$heap_310149)' = $input_194148
name' = &#string0[0]
p' = &$heap_310148
pe' = &stored_passwd.pw_name
pvm_useruid' != -1
td' = &$heap_310149
testmode' = 0



Change Warning 271.28941 : Null Pointer Dereference

Priority:
State:
Finding:
Owner:
Note: