crypto/x509/x509_vfy.c:1203: error: NULL_DEREFERENCE
  pointer `crl_issuer` last assigned on line 1202 could be null and is dereferenced by call to `X509_get_subject_name()` at line 1203, column 27.
Showing all 52 steps of the trace


crypto/x509/x509_vfy.c:1180:1: start of procedure crl_akid_check()
1178.   }
1179.   
1180. > static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,
1181.                              X509 **pissuer, int *pcrl_score)
1182.   {

crypto/x509/x509_vfy.c:1183:5: 
1181.                              X509 **pissuer, int *pcrl_score)
1182.   {
1183. >     X509 *crl_issuer = NULL;
1184.       X509_NAME *cnm = X509_CRL_get_issuer(crl);
1185.       int cidx = ctx->error_depth;

crypto/x509/x509_vfy.c:1184:5: 
1182.   {
1183.       X509 *crl_issuer = NULL;
1184. >     X509_NAME *cnm = X509_CRL_get_issuer(crl);
1185.       int cidx = ctx->error_depth;
1186.       int i;

crypto/x509/x509cset.c:113:1: start of procedure X509_CRL_get_issuer()
  111.   }
  112.   
  113. > X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl)
  114.   {
  115.       return crl->crl.issuer;

crypto/x509/x509cset.c:115:5: 
  113.   X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl)
  114.   {
  115. >     return crl->crl.issuer;
  116.   }
  117.   

crypto/x509/x509cset.c:116:1: return from a call to X509_CRL_get_issuer
  114.   {
  115.       return crl->crl.issuer;
  116. > }
  117.   
  118.   const STACK_OF(X509_EXTENSION) *X509_CRL_get0_extensions(const X509_CRL *crl)

crypto/x509/x509_vfy.c:1185:5: 
1183.       X509 *crl_issuer = NULL;
1184.       X509_NAME *cnm = X509_CRL_get_issuer(crl);
1185. >     int cidx = ctx->error_depth;
1186.       int i;
1187.   

crypto/x509/x509_vfy.c:1188:9: 
1186.       int i;
1187.   
1188. >     if (cidx != sk_X509_num(ctx->chain) - 1)
1189.           cidx++;
1190.   

include/openssl/x509.h:98:1: start of procedure sk_X509_num()
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:258:1: start of procedure OPENSSL_sk_num()
    256.   }
    257.   
    258. > int OPENSSL_sk_num(const OPENSSL_STACK *st)
    259.   {
    260.       if (st == NULL)

crypto/stack/stack.c:260:9: Taking true branch
    258.   int OPENSSL_sk_num(const OPENSSL_STACK *st)
    259.   {
    260.       if (st == NULL)
                   ^
    261.           return -1;
    262.       return st->num;

crypto/stack/stack.c:261:9: 
    259.   {
    260.       if (st == NULL)
    261. >         return -1;
    262.       return st->num;
    263.   }

crypto/stack/stack.c:263:1: return from a call to OPENSSL_sk_num
    261.           return -1;
    262.       return st->num;
    263. > }
    264.   
    265.   void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)

include/openssl/x509.h:98:1: return from a call to sk_X509_num
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1188:9: Taking true branch
1186.       int i;
1187.   
1188.       if (cidx != sk_X509_num(ctx->chain) - 1)
                ^
1189.           cidx++;
1190.   

crypto/x509/x509_vfy.c:1189:9: 
1187.   
1188.       if (cidx != sk_X509_num(ctx->chain) - 1)
1189. >         cidx++;
1190.   
1191.       crl_issuer = sk_X509_value(ctx->chain, cidx);

crypto/x509/x509_vfy.c:1191:5: 
1189.           cidx++;
1190.   
1191. >     crl_issuer = sk_X509_value(ctx->chain, cidx);
1192.   
1193.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {

include/openssl/x509.h:98:1: start of procedure sk_X509_value()
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:265:1: start of procedure OPENSSL_sk_value()
    263.   }
    264.   
    265. > void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)

crypto/stack/stack.c:267:9: Taking true branch
    265.   void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)
                   ^
    268.           return NULL;
    269.       return (void *)st->data[i];

crypto/stack/stack.c:268:9: 
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)
    268. >         return NULL;
    269.       return (void *)st->data[i];
    270.   }

crypto/stack/stack.c:270:1: return from a call to OPENSSL_sk_value
    268.           return NULL;
    269.       return (void *)st->data[i];
    270. > }
    271.   
    272.   void *OPENSSL_sk_set(OPENSSL_STACK *st, int i, const void *data)

include/openssl/x509.h:98:1: return from a call to sk_X509_value
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1193:9: 
1191.       crl_issuer = sk_X509_value(ctx->chain, cidx);
1192.   
1193. >     if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
1194.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
1195.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;

crypto/x509v3/v3_purp.c:778:1: start of procedure X509_check_akid()
  776.   }
  777.   
  778. > int X509_check_akid(X509 *issuer, AUTHORITY_KEYID *akid)
  779.   {
  780.   

crypto/x509v3/v3_purp.c:781:10: Taking false branch
  779.   {
  780.   
  781.       if (!akid)
                  ^
  782.           return X509_V_OK;
  783.   

crypto/x509v3/v3_purp.c:785:9: Taking false branch
  783.   
  784.       /* Check key ids (if present) */
  785.       if (akid->keyid && issuer->skid &&
                 ^
  786.           ASN1_OCTET_STRING_cmp(akid->keyid, issuer->skid))
  787.           return X509_V_ERR_AKID_SKID_MISMATCH;

crypto/x509v3/v3_purp.c:789:9: Taking false branch
  787.           return X509_V_ERR_AKID_SKID_MISMATCH;
  788.       /* Check serial number */
  789.       if (akid->serial &&
                 ^
  790.           ASN1_INTEGER_cmp(X509_get_serialNumber(issuer), akid->serial))
  791.           return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;

crypto/x509v3/v3_purp.c:793:9: Taking false branch
  791.           return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
  792.       /* Check issuer name */
  793.       if (akid->issuer) {
                 ^
  794.           /*
  795.            * Ugh, for some peculiar reason AKID includes SEQUENCE OF

crypto/x509v3/v3_purp.c:814:5: 
  812.               return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;
  813.       }
  814. >     return X509_V_OK;
  815.   }
  816.   

crypto/x509v3/v3_purp.c:815:1: return from a call to X509_check_akid
  813.       }
  814.       return X509_V_OK;
  815. > }
  816.   
  817.   uint32_t X509_get_extension_flags(X509 *x)

crypto/x509/x509_vfy.c:1193:9: Taking true branch
1191.       crl_issuer = sk_X509_value(ctx->chain, cidx);
1192.   
1193.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
                ^
1194.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
1195.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;

crypto/x509/x509_vfy.c:1194:13: Taking false branch
1192.   
1193.       if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
1194.           if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
                    ^
1195.               *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;
1196.               *pissuer = crl_issuer;

crypto/x509/x509_vfy.c:1201:10: 
1199.       }
1200.   
1201. >     for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1202.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1203.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

crypto/x509/x509_vfy.c:1201:18: 
1199.       }
1200.   
1201. >     for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1202.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1203.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

include/openssl/x509.h:98:1: start of procedure sk_X509_num()
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:258:1: start of procedure OPENSSL_sk_num()
    256.   }
    257.   
    258. > int OPENSSL_sk_num(const OPENSSL_STACK *st)
    259.   {
    260.       if (st == NULL)

crypto/stack/stack.c:260:9: Taking true branch
    258.   int OPENSSL_sk_num(const OPENSSL_STACK *st)
    259.   {
    260.       if (st == NULL)
                   ^
    261.           return -1;
    262.       return st->num;

crypto/stack/stack.c:261:9: 
    259.   {
    260.       if (st == NULL)
    261. >         return -1;
    262.       return st->num;
    263.   }

crypto/stack/stack.c:263:1: return from a call to OPENSSL_sk_num
    261.           return -1;
    262.       return st->num;
    263. > }
    264.   
    265.   void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)

include/openssl/x509.h:98:1: return from a call to sk_X509_num
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1201:18: Loop condition is true. Entering loop body
1199.       }
1200.   
1201.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
                         ^
1202.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1203.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))

crypto/x509/x509_vfy.c:1202:9: 
1200.   
1201.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1202. >         crl_issuer = sk_X509_value(ctx->chain, cidx);
1203.           if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
1204.               continue;

include/openssl/x509.h:98:1: start of procedure sk_X509_value()
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/stack/stack.c:265:1: start of procedure OPENSSL_sk_value()
    263.   }
    264.   
    265. > void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)

crypto/stack/stack.c:267:9: Taking true branch
    265.   void *OPENSSL_sk_value(const OPENSSL_STACK *st, int i)
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)
                   ^
    268.           return NULL;
    269.       return (void *)st->data[i];

crypto/stack/stack.c:268:9: 
    266.   {
    267.       if (st == NULL || i < 0 || i >= st->num)
    268. >         return NULL;
    269.       return (void *)st->data[i];
    270.   }

crypto/stack/stack.c:270:1: return from a call to OPENSSL_sk_value
    268.           return NULL;
    269.       return (void *)st->data[i];
    270. > }
    271.   
    272.   void *OPENSSL_sk_set(OPENSSL_STACK *st, int i, const void *data)

include/openssl/x509.h:98:1: return from a call to sk_X509_value
  96.   typedef struct x509_cinf_st X509_CINF;
  97.   
  98. > DEFINE_STACK_OF(X509)
  99.   
  100.   /* This is used for a table of trust checking functions */

crypto/x509/x509_vfy.c:1203:13: 
1201.       for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
1202.           crl_issuer = sk_X509_value(ctx->chain, cidx);
1203. >         if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
1204.               continue;
1205.           if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {

crypto/x509/x509_cmp.c:100:1: start of procedure X509_get_subject_name()
  98.   #endif
  99.   
  100. > X509_NAME *X509_get_subject_name(const X509 *a)
  101.   {
  102.       return (a->cert_info.subject);

crypto/x509/x509_cmp.c:102:5: 
  100.   X509_NAME *X509_get_subject_name(const X509 *a)
  101.   {
  102. >     return (a->cert_info.subject);
  103.   }
  104.   

static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,
                           X509 **pissuer, int *pcrl_score)
{
    X509 *crl_issuer = NULL;
    X509_NAME *cnm = X509_CRL_get_issuer(crl);
    int cidx = ctx->error_depth;
    int i;
    if (cidx != sk_X509_num(ctx->chain) - 1)
        cidx++;
    crl_issuer = sk_X509_value(ctx->chain, cidx);
    if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
        if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {
            *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;
            *pissuer = crl_issuer;
            return;
        }
    }
    for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {
        crl_issuer = sk_X509_value(ctx->chain, cidx);
        if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
            continue;
        if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
            *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_SAME_PATH;
            *pissuer = crl_issuer;
            return;
        }
    }
    if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT))
        return;
    for (i = 0; i < sk_X509_num(ctx->untrusted); i++) {
        crl_issuer = sk_X509_value(ctx->untrusted, i);
        if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))
            continue;
        if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {
            *pissuer = crl_issuer;
            *pcrl_score |= CRL_SCORE_AKID;
            return;
        }
    }
}
['static void crl_akid_check(X509_STORE_CTX *ctx, X509_CRL *crl,\n                           X509 **pissuer, int *pcrl_score)\n{\n    X509 *crl_issuer = NULL;\n    X509_NAME *cnm = X509_CRL_get_issuer(crl);\n    int cidx = ctx->error_depth;\n    int i;\n    if (cidx != sk_X509_num(ctx->chain) - 1)\n        cidx++;\n    crl_issuer = sk_X509_value(ctx->chain, cidx);\n    if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {\n        if (*pcrl_score & CRL_SCORE_ISSUER_NAME) {\n            *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_ISSUER_CERT;\n            *pissuer = crl_issuer;\n            return;\n        }\n    }\n    for (cidx++; cidx < sk_X509_num(ctx->chain); cidx++) {\n        crl_issuer = sk_X509_value(ctx->chain, cidx);\n        if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))\n            continue;\n        if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {\n            *pcrl_score |= CRL_SCORE_AKID | CRL_SCORE_SAME_PATH;\n            *pissuer = crl_issuer;\n            return;\n        }\n    }\n    if (!(ctx->param->flags & X509_V_FLAG_EXTENDED_CRL_SUPPORT))\n        return;\n    for (i = 0; i < sk_X509_num(ctx->untrusted); i++) {\n        crl_issuer = sk_X509_value(ctx->untrusted, i);\n        if (X509_NAME_cmp(X509_get_subject_name(crl_issuer), cnm))\n            continue;\n        if (X509_check_akid(crl_issuer, crl->akid) == X509_V_OK) {\n            *pissuer = crl_issuer;\n            *pcrl_score |= CRL_SCORE_AKID;\n            return;\n        }\n    }\n}', 'X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl)\n{\n    return crl->crl.issuer;\n}', 'DEFINE_STACK_OF(X509)', 'int OPENSSL_sk_num(const OPENSSL_STACK *st)\n{\n    if (st == NULL)\n        return -1;\n    return st->num;\n}', '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}', 'int X509_check_akid(X509 *issuer, AUTHORITY_KEYID *akid)\n{\n    if (!akid)\n        return X509_V_OK;\n    if (akid->keyid && issuer->skid &&\n        ASN1_OCTET_STRING_cmp(akid->keyid, issuer->skid))\n        return X509_V_ERR_AKID_SKID_MISMATCH;\n    if (akid->serial &&\n        ASN1_INTEGER_cmp(X509_get_serialNumber(issuer), akid->serial))\n        return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;\n    if (akid->issuer) {\n        GENERAL_NAMES *gens;\n        GENERAL_NAME *gen;\n        X509_NAME *nm = NULL;\n        int i;\n        gens = akid->issuer;\n        for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) {\n            gen = sk_GENERAL_NAME_value(gens, i);\n            if (gen->type == GEN_DIRNAME) {\n                nm = gen->d.dirn;\n                break;\n            }\n        }\n        if (nm && X509_NAME_cmp(nm, X509_get_issuer_name(issuer)))\n            return X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH;\n    }\n    return X509_V_OK;\n}', 'X509_NAME *X509_get_subject_name(const X509 *a)\n{\n    return (a->cert_info.subject);\n}']