apps/ts.c:806: error: BUFFER_OVERRUN_L3
  Offset: [3, +oo] (⇐ [0, +oo] + 3) Size: [0, 8388607] by call to `BN_add_word`.
Showing all 14 steps of the trace


apps/ts.c:802:19: Call
800.               goto err;
801.           }
802.           if ((bn = ASN1_INTEGER_to_BN(serial, NULL)) == NULL)
                         ^
803.               goto err;
804.           ASN1_INTEGER_free(serial);

crypto/asn1/a_int.c:629:12: Call
  627.   BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
  628.   {
  629.       return asn1_string_to_bn(ai, bn, V_ASN1_INTEGER);
                    ^
  630.   }
  631.   

crypto/asn1/a_int.c:563:1: Parameter `bn->d`
    561.   }
    562.   
    563. > static BIGNUM *asn1_string_to_bn(const ASN1_INTEGER *ai, BIGNUM *bn,
    564.                                    int itype)
    565.   {

apps/ts.c:806:14: Call
804.           ASN1_INTEGER_free(serial);
805.           serial = NULL;
806.           if (!BN_add_word(bn, 1))
                    ^
807.               goto err;
808.           if ((serial = BN_to_ASN1_INTEGER(bn, NULL)) == NULL)

crypto/bn/bn_word.c:123:1: Parameter `*a->d`
  121.   }
  122.   
  123. > int BN_add_word(BIGNUM *a, BN_ULONG w)
  124.   {
  125.       BN_ULONG l;

crypto/bn/bn_word.c:136:16: Call
  134.       /* degenerate case: a is zero */
  135.       if (BN_is_zero(a))
  136.           return BN_set_word(a, w);
                        ^
  137.       /* handle 'a' when negative */
  138.       if (a->neg) {

crypto/bn/bn_lib.c:530:1: Parameter `*a->d`
    528.   }
    529.   
    530. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    531.   {
    532.       bn_check_top(a);

crypto/bn/bn_lib.c:533:9: Call
    531.   {
    532.       bn_check_top(a);
    533.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    534.           return (0);
    535.       a->neg = 0;

crypto/bn/bn_lib.c:390:1: Parameter `*b->d`
      388.    */
      389.   
      390. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      391.   {
      392.       bn_check_top(b);

crypto/bn/bn_lib.c:395:23: Call
      393.   
      394.       if (words > b->dmax) {
      395.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      396.           if (!a)
      397.               return NULL;

crypto/bn/bn_lib.c:300:1: <Length trace>
298.   /* This is used by bn_expand2() */
299.   /* The caller MUST check that words > b->dmax before calling this */
300. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
301.   {
302.       BN_ULONG *A, *a = NULL;

crypto/bn/bn_lib.c:300:1: Parameter `*b->d`
        298.   /* This is used by bn_expand2() */
        299.   /* The caller MUST check that words > b->dmax before calling this */
        300. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        301.   {
        302.       BN_ULONG *A, *a = NULL;

crypto/bn/bn_lib.c:335:5: Assignment
        333.   
        334.   #if 1
        335.       B = b->d;
                   ^
        336.       /* Check if the previous number needs to be copied */
        337.       if (B != NULL) {

crypto/bn/bn_lib.c:352:18: Array access: Offset: [3, +oo] (⇐ [0, +oo] + 3) Size: [0, 8388607] by call to `BN_add_word` 
        350.               a1 = B[1];
        351.               a2 = B[2];
        352.               a3 = B[3];
                                ^
        353.               A[0] = a0;
        354.               A[1] = a1;

static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
    BN_ULONG *A, *a = NULL;
    const BN_ULONG *B;
    int i;
    bn_check_top(b);
    if (words > (INT_MAX / (4 * BN_BITS2))) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);
        return NULL;
    }
    if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);
        return (NULL);
    }
    if (BN_get_flags(b,BN_FLG_SECURE))
        a = A = OPENSSL_secure_malloc(words * sizeof(*a));
    else
        a = A = OPENSSL_malloc(words * sizeof(*a));
    if (A == NULL) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
        return (NULL);
    }
#ifdef PURIFY
    memset(a, 0, sizeof(*a) * words);
#endif
#if 1
    B = b->d;
    if (B != NULL) {
        for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {
            BN_ULONG a0, a1, a2, a3;
            a0 = B[0];
            a1 = B[1];
            a2 = B[2];
            a3 = B[3];
            A[0] = a0;
            A[1] = a1;
            A[2] = a2;
            A[3] = a3;
        }
        switch (b->top & 3) {
        case 3:
            A[2] = B[2];
        case 2:
            A[1] = B[1];
        case 1:
            A[0] = B[0];
        case 0:
            ;
        }
    }
#else
    memset(A, 0, sizeof(*A) * words);
    memcpy(A, b->d, sizeof(b->d[0]) * b->top);
#endif
    return (a);
}
['static ASN1_INTEGER *next_serial(const char *serialfile)\n{\n    int ret = 0;\n    BIO *in = NULL;\n    ASN1_INTEGER *serial = NULL;\n    BIGNUM *bn = NULL;\n    if ((serial = ASN1_INTEGER_new()) == NULL)\n        goto err;\n    if ((in = BIO_new_file(serialfile, "r")) == NULL) {\n        ERR_clear_error();\n        BIO_printf(bio_err, "Warning: could not open file %s for "\n                   "reading, using serial number: 1\\n", serialfile);\n        if (!ASN1_INTEGER_set(serial, 1))\n            goto err;\n    } else {\n        char buf[1024];\n        if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {\n            BIO_printf(bio_err, "unable to load number from %s\\n",\n                       serialfile);\n            goto err;\n        }\n        if ((bn = ASN1_INTEGER_to_BN(serial, NULL)) == NULL)\n            goto err;\n        ASN1_INTEGER_free(serial);\n        serial = NULL;\n        if (!BN_add_word(bn, 1))\n            goto err;\n        if ((serial = BN_to_ASN1_INTEGER(bn, NULL)) == NULL)\n            goto err;\n    }\n    ret = 1;\n err:\n    if (!ret) {\n        ASN1_INTEGER_free(serial);\n        serial = NULL;\n    }\n    BIO_free_all(in);\n    BN_free(bn);\n    return serial;\n}', 'BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)\n{\n    return asn1_string_to_bn(ai, bn, V_ASN1_INTEGER);\n}', 'static BIGNUM *asn1_string_to_bn(const ASN1_INTEGER *ai, BIGNUM *bn,\n                                 int itype)\n{\n    BIGNUM *ret;\n    if ((ai->type & ~V_ASN1_NEG) != itype) {\n        ASN1err(ASN1_F_ASN1_STRING_TO_BN, ASN1_R_WRONG_INTEGER_TYPE);\n        return NULL;\n    }\n    ret = BN_bin2bn(ai->data, ai->length, bn);\n    if (ret == 0) {\n        ASN1err(ASN1_F_ASN1_STRING_TO_BN, ASN1_R_BN_LIB);\n        return NULL;\n    }\n    if (ai->type & V_ASN1_NEG)\n        BN_set_negative(ret, 1);\n    return ret;\n}', 'int BN_add_word(BIGNUM *a, BN_ULONG w)\n{\n    BN_ULONG l;\n    int i;\n    bn_check_top(a);\n    w &= BN_MASK2;\n    if (!w)\n        return 1;\n    if (BN_is_zero(a))\n        return BN_set_word(a, w);\n    if (a->neg) {\n        a->neg = 0;\n        i = BN_sub_word(a, w);\n        if (!BN_is_zero(a))\n            a->neg = !(a->neg);\n        return (i);\n    }\n    for (i = 0; w != 0 && i < a->top; i++) {\n        a->d[i] = l = (a->d[i] + w) & BN_MASK2;\n        w = (w > l) ? 1 : 0;\n    }\n    if (w && i == a->top) {\n        if (bn_wexpand(a, a->top + 1) == NULL)\n            return 0;\n        a->top++;\n        a->d[i] = w;\n    }\n    bn_check_top(a);\n    return (1);\n}', 'int BN_set_word(BIGNUM *a, BN_ULONG w)\n{\n    bn_check_top(a);\n    if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)\n        return (0);\n    a->neg = 0;\n    a->d[0] = w;\n    a->top = (w ? 1 : 0);\n    bn_check_top(a);\n    return (1);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\n    bn_check_top(b);\n    if (words > b->dmax) {\n        BN_ULONG *a = bn_expand_internal(b, words);\n        if (!a)\n            return NULL;\n        if (b->d) {\n            OPENSSL_cleanse(b->d, b->dmax * sizeof(b->d[0]));\n            bn_free_d(b);\n        }\n        b->d = a;\n        b->dmax = words;\n    }\n    bn_check_top(b);\n    return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n    BN_ULONG *A, *a = NULL;\n    const BN_ULONG *B;\n    int i;\n    bn_check_top(b);\n    if (words > (INT_MAX / (4 * BN_BITS2))) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_BIGNUM_TOO_LONG);\n        return NULL;\n    }\n    if (BN_get_flags(b, BN_FLG_STATIC_DATA)) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, BN_R_EXPAND_ON_STATIC_BIGNUM_DATA);\n        return (NULL);\n    }\n    if (BN_get_flags(b,BN_FLG_SECURE))\n        a = A = OPENSSL_secure_malloc(words * sizeof(*a));\n    else\n        a = A = OPENSSL_malloc(words * sizeof(*a));\n    if (A == NULL) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n        return (NULL);\n    }\n#ifdef PURIFY\n    memset(a, 0, sizeof(*a) * words);\n#endif\n#if 1\n    B = b->d;\n    if (B != NULL) {\n        for (i = b->top >> 2; i > 0; i--, A += 4, B += 4) {\n            BN_ULONG a0, a1, a2, a3;\n            a0 = B[0];\n            a1 = B[1];\n            a2 = B[2];\n            a3 = B[3];\n            A[0] = a0;\n            A[1] = a1;\n            A[2] = a2;\n            A[3] = a3;\n        }\n        switch (b->top & 3) {\n        case 3:\n            A[2] = B[2];\n        case 2:\n            A[1] = B[1];\n        case 1:\n            A[0] = B[0];\n        case 0:\n            ;\n        }\n    }\n#else\n    memset(A, 0, sizeof(*A) * words);\n    memcpy(A, b->d, sizeof(b->d[0]) * b->top);\n#endif\n    return (a);\n}']