crypto/x509/x509_vfy.c:1100: error: NULL_DEREFERENCE
  pointer `crl_issuer` last assigned on line 1099 could be null and is dereferenced by call to `X509_get_subject_name()` at line 1100, column 27.
Showing all 52 steps of the trace


crypto/x509/x509_vfy.c:1077:1: start of procedure crl_akid_check()
1075.   }
1076.   
1077. > static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,
1078.                              X509 **pissuer, int *pcrl_score)
1079.   {

crypto/x509/x509_vfy.c:1080:5: 
1078.                              X509 **pissuer, int *pcrl_score)
1079.   {
1080. >     X509 *crl_issuer = NULL;
1081.       X509_NAME *cnm = X509_CRL_get_issuer(crl);
1082.       int cidx = ctx->error_depth;

crypto/x509/x509_vfy.c:1081:5: 
1079.   {
1080.       X509 *crl_issuer = NULL;
1081. >     X509_NAME *cnm = X509_CRL_get_issuer(crl);
1082.       int cidx = ctx->error_depth;
1083.       int i;

crypto/x509/x509cset.c:156:1: start of procedure X509_CRL_get_issuer()
  154.   }
  155.   
  156. > X509_NAME *X509_CRL_get_issuer(X509_CRL *crl)
  157.   {
  158.       return crl->crl.issuer;

crypto/x509/x509cset.c:158:5: 
  156.   X509_NAME *X509_CRL_get_issuer(X509_CRL *crl)
  157.   {
  158. >     return crl->crl.issuer;
  159.   }
  160.   

crypto/x509/x509cset.c:159:1: return from a call to X509_CRL_get_issuer
  157.   {
  158.       return crl->crl.issuer;
  159. > }
  160.   
  161.   STACK_OF(X509_EXTENSION) *X509_CRL_get0_extensions(X509_CRL *crl)

crypto/x509/x509_vfy.c:1082:5: 
1080.       X509 *crl_issuer = NULL;
1081.       X509_NAME *cnm = X509_CRL_get_issuer(crl);
1082. >     int cidx = ctx->error_depth;
1083.       int i;
1084.   

crypto/x509/x509_vfy.c:1085:9: 
1083.       int i;
1084.   
1085. >     if (cidx != sk_X509_num(ctx->chain) - 1)
1086.           cidx++;
1087.   

include/openssl/x509.h:151:1: start of procedure sk_X509_num()
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:316:1: start of procedure sk_num()
    314.   }
    315.   
    316. > int sk_num(const _STACK *st)
    317.   {
    318.       if (st == NULL)

crypto/stack/stack.c:318:9: Taking true branch
    316.   int sk_num(const _STACK *st)
    317.   {
    318.       if (st == NULL)
                   ^
    319.           return -1;
    320.       return st->num;

crypto/stack/stack.c:319:9: 
    317.   {
    318.       if (st == NULL)
    319. >         return -1;
    320.       return st->num;
    321.   }

crypto/stack/stack.c:321:1: return from a call to sk_num
    319.           return -1;
    320.       return st->num;
    321. > }
    322.   
    323.   void *sk_value(const _STACK *st, int i)

include/openssl/x509.h:151:1: return from a call to sk_X509_num
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1085:9: Taking true branch
1083.       int i;
1084.   
1085.       if (cidx != sk_X509_num(ctx->chain) - 1)
                ^
1086.           cidx++;
1087.   

crypto/x509/x509_vfy.c:1086:9: 
1084.   
1085.       if (cidx != sk_X509_num(ctx->chain) - 1)
1086. >         cidx++;
1087.   
1088.       crl_issuer = sk_X509_value(ctx->chain, cidx);

crypto/x509/x509_vfy.c:1088:5: 
1086.           cidx++;
1087.   
1088. >     crl_issuer = sk_X509_value(ctx->chain, cidx);
1089.   
1090.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {

include/openssl/x509.h:151:1: start of procedure sk_X509_value()
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:323:1: start of procedure sk_value()
    321.   }
    322.   
    323. > void *sk_value(const _STACK *st, int i)
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))

crypto/stack/stack.c:325:10: Taking true branch
    323.   void *sk_value(const _STACK *st, int i)
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))
                    ^
    326.           return NULL;
    327.       return st->data[i];

crypto/stack/stack.c:326:9: 
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))
    326. >         return NULL;
    327.       return st->data[i];
    328.   }

crypto/stack/stack.c:328:1: return from a call to sk_value
    326.           return NULL;
    327.       return st->data[i];
    328. > }
    329.   
    330.   void *sk_set(_STACK *st, int i, void *value)

include/openssl/x509.h:151:1: return from a call to sk_X509_value
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1090:9: 
1088.       crl_issuer = sk_X509_value(ctx->chain, cidx);
1089.   
1090. >     if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
1091.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
1092.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;

crypto/x509v3/v3_purp.c:813:1: start of procedure X509_check_akid()
  811.   }
  812.   
  813. > int X509_check_akid(X509 *issuer, AUTHORITY_KEYID *akid)
  814.   {
  815.   

crypto/x509v3/v3_purp.c:816:10: Taking false branch
  814.   {
  815.   
  816.       if (!akid)
                  ^
  817.           return X509_V_OK;
  818.   

crypto/x509v3/v3_purp.c:820:9: Taking false branch
  818.   
  819.       /* Check key ids (if present) */
  820.       if (akid->keyid && issuer->skid &&
                 ^
  821.           ASN1_OCTET_STRING_cmp(akid->keyid, issuer->skid))
  822.           return X509_V_ERR_AKID_SKID_MISMATCH;

crypto/x509v3/v3_purp.c:824:9: Taking false branch
  822.           return X509_V_ERR_AKID_SKID_MISMATCH;
  823.       /* Check serial number */
  824.       if (akid->serial &&
                 ^
  825.           ASN1_INTEGER_cmp(X509_get_serialNumber(issuer), akid->serial))
  826.           return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;

crypto/x509v3/v3_purp.c:828:9: Taking false branch
  826.           return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
  827.       /* Check issuer name */
  828.       if (akid->issuer) {
                 ^
  829.           /*
  830.            * Ugh, for some peculiar reason AKID includes SEQUENCE OF

crypto/x509v3/v3_purp.c:849:5: 
  847.               return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
  848.       }
  849. >     return X509_V_OK;
  850.   }
  851.   

crypto/x509v3/v3_purp.c:850:1: return from a call to X509_check_akid
  848.       }
  849.       return X509_V_OK;
  850. > }
  851.   
  852.   uint32_t X509_get_extension_flags(X509 *x)

crypto/x509/x509_vfy.c:1090:9: Taking true branch
1088.       crl_issuer = sk_X509_value(ctx->chain, cidx);
1089.   
1090.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
                ^
1091.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
1092.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;

crypto/x509/x509_vfy.c:1091:13: Taking false branch
1089.   
1090.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
1091.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
                    ^
1092.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;
1093.               *pissuer = crl_issuer;

crypto/x509/x509_vfy.c:1098:10: 
1096.       }
1097.   
1098. >     for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1099.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1100.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

crypto/x509/x509_vfy.c:1098:18: 
1096.       }
1097.   
1098. >     for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1099.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1100.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

include/openssl/x509.h:151:1: start of procedure sk_X509_num()
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:316:1: start of procedure sk_num()
    314.   }
    315.   
    316. > int sk_num(const _STACK *st)
    317.   {
    318.       if (st == NULL)

crypto/stack/stack.c:318:9: Taking true branch
    316.   int sk_num(const _STACK *st)
    317.   {
    318.       if (st == NULL)
                   ^
    319.           return -1;
    320.       return st->num;

crypto/stack/stack.c:319:9: 
    317.   {
    318.       if (st == NULL)
    319. >         return -1;
    320.       return st->num;
    321.   }

crypto/stack/stack.c:321:1: return from a call to sk_num
    319.           return -1;
    320.       return st->num;
    321. > }
    322.   
    323.   void *sk_value(const _STACK *st, int i)

include/openssl/x509.h:151:1: return from a call to sk_X509_num
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1098:18: Loop condition is true. Entering loop body
1096.       }
1097.   
1098.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
                         ^
1099.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1100.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

crypto/x509/x509_vfy.c:1099:9: 
1097.   
1098.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1099. >         crl_issuer = sk_X509_value(ctx->chain, cidx);
1100.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
1101.               continue;

include/openssl/x509.h:151:1: start of procedure sk_X509_value()
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:323:1: start of procedure sk_value()
    321.   }
    322.   
    323. > void *sk_value(const _STACK *st, int i)
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))

crypto/stack/stack.c:325:10: Taking true branch
    323.   void *sk_value(const _STACK *st, int i)
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))
                    ^
    326.           return NULL;
    327.       return st->data[i];

crypto/stack/stack.c:326:9: 
    324.   {
    325.       if (!st || (i < 0) || (i >= st->num))
    326. >         return NULL;
    327.       return st->data[i];
    328.   }

crypto/stack/stack.c:328:1: return from a call to sk_value
    326.           return NULL;
    327.       return st->data[i];
    328. > }
    329.   
    330.   void *sk_set(_STACK *st, int i, void *value)

include/openssl/x509.h:151:1: return from a call to sk_X509_value
  149.   typedef struct x509_cinf_st X509_CINF;
  150.   
  151. > DEFINE_STACK_OF(X509)
  152.   
  153.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1100:13: 
1098.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1099.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1100. >         if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
1101.               continue;
1102.           if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {

crypto/x509/x509_cmp.c:148:1: start of procedure X509_get_subject_name()
  146.   #endif
  147.   
  148. > X509_NAME *X509_get_subject_name(X509 *a)
  149.   {
  150.       return (a->cert_info.subject);

crypto/x509/x509_cmp.c:150:5: 
  148.   X509_NAME *X509_get_subject_name(X509 *a)
  149.   {
  150. >     return (a->cert_info.subject);
  151.   }
  152.   
