crypto/ec/ec_lib.c:243: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `EC_GROUP_copy`.
Showing all 21 steps of the trace


crypto/ec/ec_lib.c:243:10: Call
241.       if ((t = EC_GROUP_new(a->meth)) == NULL)
242.           return NULL;
243.       if (!EC_GROUP_copy(t, a))
                ^
244.           goto err;
245.   

crypto/ec/ec_lib.c:130:1: Parameter `dest->order->top`
  128.   }
  129.   
  130. > int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)
  131.   {
  132.       if (dest->meth->group_copy == 0) {

crypto/ec/ec_lib.c:206:14: Call
  204.   
  205.       if ((src->meth->flags & EC_FLAGS_CUSTOM_CURVE) == 0) {
  206.           if (!BN_copy(dest->order, src->order))
                      ^
  207.               return 0;
  208.           if (!BN_copy(dest->cofactor, src->cofactor))

crypto/bn/bn_lib.c:280:1: Parameter `a->top`
    278.   }
    279.   
    280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    281.   {
    282.       bn_check_top(b);

crypto/bn/bn_lib.c:286:9: Call
    284.       if (a == b)
    285.           return a;
    286.       if (bn_wexpand(a, b->top) == NULL)
                   ^
    287.           return NULL;
    288.   

crypto/bn/bn_lib.c:942:1: Parameter `a->top`
      940.   }
      941.   
      942. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      943.   {
      944.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:944:37: Call
      942.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
      943.   {
      944.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                 ^
      945.   }
      946.   

crypto/bn/bn_lib.c:244:1: Parameter `b->top`
        242.    */
        243.   
        244. > BIGNUM *bn_expand2(BIGNUM *b, int words)
        245.   {
        246.       if (words > b->dmax) {

crypto/bn/bn_lib.c:247:23: Call
        245.   {
        246.       if (words > b->dmax) {
        247.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        248.           if (!a)
        249.               return NULL;

crypto/bn/bn_lib.c:208:1: <Offset trace>
206.   /* This is used by bn_expand2() */
207.   /* The caller MUST check that words > b->dmax before calling this */
208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
209.   {
210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: Parameter `b->top`
          206.   /* This is used by bn_expand2() */
          207.   /* The caller MUST check that words > b->dmax before calling this */
          208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          209.   {
          210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: <Length trace>
206.   /* This is used by bn_expand2() */
207.   /* The caller MUST check that words > b->dmax before calling this */
208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
209.   {
210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: Parameter `words`
          206.   /* This is used by bn_expand2() */
          207.   /* The caller MUST check that words > b->dmax before calling this */
          208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          209.   {
          210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:223:13: Call
          221.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          222.       else
          223.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          224.       if (a == NULL) {
          225.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:228:1: Parameter `num`
            226.   }
            227.   
            228. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:230:17: Call
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            231.   
            232.       FAILTEST();

crypto/mem.c:201:9: Assignment
              199.   
              200.       if (num == 0)
              201.           return NULL;
                             ^
              202.   
              203.       FAILTEST();

crypto/mem.c:230:5: Assignment
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            231.   
            232.       FAILTEST();

crypto/mem.c:235:5: Assignment
            233.       if (ret != NULL)
            234.           memset(ret, 0, num);
            235.       return ret;
                       ^
            236.   }
            237.   

crypto/bn/bn_lib.c:223:9: Assignment
          221.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          222.       else
          223.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          224.       if (a == NULL) {
          225.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:231:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `EC_GROUP_copy` 
          229.       assert(b->top <= words);
          230.       if (b->top > 0)
          231.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          232.   
          233.       return a;

static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
{
    BN_ULONG *a = NULL;
    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 = OPENSSL_secure_zalloc(words * sizeof(*a));
    else
        a = OPENSSL_zalloc(words * sizeof(*a));
    if (a == NULL) {
        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);
        return NULL;
    }
    assert(b->top <= words);
    if (b->top > 0)
        memcpy(a, b->d, sizeof(*a) * b->top);
    return a;
}
['EC_GROUP *EC_GROUP_dup(const EC_GROUP *a)\n{\n    EC_GROUP *t = NULL;\n    int ok = 0;\n    if (a == NULL)\n        return NULL;\n    if ((t = EC_GROUP_new(a->meth)) == NULL)\n        return NULL;\n    if (!EC_GROUP_copy(t, a))\n        goto err;\n    ok = 1;\n err:\n    if (!ok) {\n        EC_GROUP_free(t);\n        return NULL;\n    }\n        return t;\n}', 'int EC_GROUP_copy(EC_GROUP *dest, const EC_GROUP *src)\n{\n    if (dest->meth->group_copy == 0) {\n        ECerr(EC_F_EC_GROUP_COPY, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);\n        return 0;\n    }\n    if (dest->meth != src->meth) {\n        ECerr(EC_F_EC_GROUP_COPY, EC_R_INCOMPATIBLE_OBJECTS);\n        return 0;\n    }\n    if (dest == src)\n        return 1;\n    dest->curve_name = src->curve_name;\n    dest->pre_comp_type = src->pre_comp_type;\n    switch (src->pre_comp_type) {\n    case PCT_none:\n        dest->pre_comp.ec = NULL;\n        break;\n    case PCT_nistz256:\n#ifdef ECP_NISTZ256_ASM\n        dest->pre_comp.nistz256 = EC_nistz256_pre_comp_dup(src->pre_comp.nistz256);\n#endif\n        break;\n#ifndef OPENSSL_NO_EC_NISTP_64_GCC_128\n    case PCT_nistp224:\n        dest->pre_comp.nistp224 = EC_nistp224_pre_comp_dup(src->pre_comp.nistp224);\n        break;\n    case PCT_nistp256:\n        dest->pre_comp.nistp256 = EC_nistp256_pre_comp_dup(src->pre_comp.nistp256);\n        break;\n    case PCT_nistp521:\n        dest->pre_comp.nistp521 = EC_nistp521_pre_comp_dup(src->pre_comp.nistp521);\n        break;\n#else\n    case PCT_nistp224:\n    case PCT_nistp256:\n    case PCT_nistp521:\n        break;\n#endif\n    case PCT_ec:\n        dest->pre_comp.ec = EC_ec_pre_comp_dup(src->pre_comp.ec);\n        break;\n    }\n    if (src->mont_data != NULL) {\n        if (dest->mont_data == NULL) {\n            dest->mont_data = BN_MONT_CTX_new();\n            if (dest->mont_data == NULL)\n                return 0;\n        }\n        if (!BN_MONT_CTX_copy(dest->mont_data, src->mont_data))\n            return 0;\n    } else {\n        BN_MONT_CTX_free(dest->mont_data);\n        dest->mont_data = NULL;\n    }\n    if (src->generator != NULL) {\n        if (dest->generator == NULL) {\n            dest->generator = EC_POINT_new(dest);\n            if (dest->generator == NULL)\n                return 0;\n        }\n        if (!EC_POINT_copy(dest->generator, src->generator))\n            return 0;\n    } else {\n        EC_POINT_clear_free(dest->generator);\n        dest->generator = NULL;\n    }\n    if ((src->meth->flags & EC_FLAGS_CUSTOM_CURVE) == 0) {\n        if (!BN_copy(dest->order, src->order))\n            return 0;\n        if (!BN_copy(dest->cofactor, src->cofactor))\n            return 0;\n    }\n    dest->asn1_flag = src->asn1_flag;\n    dest->asn1_form = src->asn1_form;\n    if (src->seed) {\n        OPENSSL_free(dest->seed);\n        if ((dest->seed = OPENSSL_malloc(src->seed_len)) == NULL) {\n            ECerr(EC_F_EC_GROUP_COPY, ERR_R_MALLOC_FAILURE);\n            return 0;\n        }\n        if (!memcpy(dest->seed, src->seed, src->seed_len))\n            return 0;\n        dest->seed_len = src->seed_len;\n    } else {\n        OPENSSL_free(dest->seed);\n        dest->seed = NULL;\n        dest->seed_len = 0;\n    }\n    return dest->meth->group_copy(dest, src);\n}', 'BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)\n{\n    bn_check_top(b);\n    if (a == b)\n        return a;\n    if (bn_wexpand(a, b->top) == NULL)\n        return NULL;\n    if (b->top > 0)\n        memcpy(a->d, b->d, sizeof(b->d[0]) * b->top);\n    a->neg = b->neg;\n    a->top = b->top;\n    a->flags |= b->flags & BN_FLG_FIXED_TOP;\n    bn_check_top(a);\n    return a;\n}', 'BIGNUM *bn_wexpand(BIGNUM *a, int words)\n{\n    return (words <= a->dmax) ? a : bn_expand2(a, words);\n}', 'BIGNUM *bn_expand2(BIGNUM *b, int words)\n{\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    return b;\n}', 'static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)\n{\n    BN_ULONG *a = NULL;\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 = OPENSSL_secure_zalloc(words * sizeof(*a));\n    else\n        a = OPENSSL_zalloc(words * sizeof(*a));\n    if (a == NULL) {\n        BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);\n        return NULL;\n    }\n    assert(b->top <= words);\n    if (b->top > 0)\n        memcpy(a, b->d, sizeof(*a) * b->top);\n    return a;\n}', 'void *CRYPTO_zalloc(size_t num, const char *file, int line)\n{\n    void *ret = CRYPTO_malloc(num, file, line);\n    FAILTEST();\n    if (ret != NULL)\n        memset(ret, 0, num);\n    return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n    void *ret = NULL;\n    INCREMENT(malloc_count);\n    if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)\n        return malloc_impl(num, file, line);\n    if (num == 0)\n        return NULL;\n    FAILTEST();\n    if (allow_customize) {\n        allow_customize = 0;\n    }\n#ifndef OPENSSL_NO_CRYPTO_MDEBUG\n    if (call_malloc_debug) {\n        CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);\n        ret = malloc(num);\n        CRYPTO_mem_debug_malloc(ret, num, 1, file, line);\n    } else {\n        ret = malloc(num);\n    }\n#else\n    (void)(file); (void)(line);\n    ret = malloc(num);\n#endif\n    return ret;\n}']