ssl/t1_lib.c:2224: error: NULL_DEREFERENCE
  pointer `null` is dereferenced by call to `ssl_security_cert()` at line 2224, column 10.
Showing all 11 steps of the trace


ssl/t1_lib.c:2215:1: start of procedure ssl_security_cert_chain()
2213.    */
2214.   
2215. > int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *x, int vfy)
2216.   {
2217.       int rv, start_idx, i;

ssl/t1_lib.c:2218:9: Taking true branch
2216.   {
2217.       int rv, start_idx, i;
2218.       if (x == NULL) {
                ^
2219.           x = sk_X509_value(sk, 0);
2220.           start_idx = 1;

ssl/t1_lib.c:2219:9: 
2217.       int rv, start_idx, i;
2218.       if (x == NULL) {
2219. >         x = sk_X509_value(sk, 0);
2220.           start_idx = 1;
2221.       } else

include/openssl/x509.h:100:1: start of procedure sk_X509_value()
  98.   typedef struct x509_cinf_st X509_CINF;
  99.   
  100. > DEFINE_STACK_OF(X509)
  101.   
  102.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:284:1: start of procedure OPENSSL_sk_value()
    282.   }
    283.   
    284. > void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    285.   {
    286.       if (st == NULL || i < 0 || i >= st->num)

crypto/stack/stack.c:286:9: Taking true branch
    284.   void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    285.   {
    286.       if (st == NULL || i < 0 || i >= st->num)
                   ^
    287.           return NULL;
    288.       return (void *)st->data[i];

crypto/stack/stack.c:287:9: 
    285.   {
    286.       if (st == NULL || i < 0 || i >= st->num)
    287. >         return NULL;
    288.       return (void *)st->data[i];
    289.   }

crypto/stack/stack.c:289:1: return from a call to OPENSSL_sk_value
    287.           return NULL;
    288.       return (void *)st->data[i];
    289. > }
    290.   
    291.   void *OPENSSL_sk_set(OPENSSL_STACK *st, int i, const void *data)

include/openssl/x509.h:100:1: return from a call to sk_X509_value
  98.   typedef struct x509_cinf_st X509_CINF;
  99.   
  100. > DEFINE_STACK_OF(X509)
  101.   
  102.   /* This is used for a table of trust checking functions */

ssl/t1_lib.c:2220:9: 
2218.       if (x == NULL) {
2219.           x = sk_X509_value(sk, 0);
2220. >         start_idx = 1;
2221.       } else
2222.           start_idx = 0;

ssl/t1_lib.c:2224:5: 
2222.           start_idx = 0;
2223.   
2224. >     rv = ssl_security_cert(s, NULL, x, vfy, 1);
2225.       if (rv != 1)
2226.           return rv;

int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *x, int vfy)
{
    int rv, start_idx, i;
    if (x == NULL) {
        x = sk_X509_value(sk, 0);
        start_idx = 1;
    } else
        start_idx = 0;
    rv = ssl_security_cert(s, NULL, x, vfy, 1);
    if (rv != 1)
        return rv;
    for (i = start_idx; i < sk_X509_num(sk); i++) {
        x = sk_X509_value(sk, i);
        rv = ssl_security_cert(s, NULL, x, vfy, 0);
        if (rv != 1)
            return rv;
    }
    return 1;
}
['int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *x, int vfy)\n{\n    int rv, start_idx, i;\n    if (x == NULL) {\n        x = sk_X509_value(sk, 0);\n        start_idx = 1;\n    } else\n        start_idx = 0;\n    rv = ssl_security_cert(s, NULL, x, vfy, 1);\n    if (rv != 1)\n        return rv;\n    for (i = start_idx; i < sk_X509_num(sk); i++) {\n        x = sk_X509_value(sk, i);\n        rv = ssl_security_cert(s, NULL, x, vfy, 0);\n        if (rv != 1)\n            return rv;\n    }\n    return 1;\n}', 'DEFINE_STACK_OF(X509)', 'void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)\n{\n    if (st == NULL || i < 0 || i >= st->num)\n        return NULL;\n    return (void *)st->data[i];\n}']