crypto/ec/ec_lib.c:925: error: BUFFER_OVERRUN_L3
  Offset: [0, 1] Size: [0, +oo] by call to `EC_POINTs_mul`.
Showing all 13 steps of the trace


crypto/ec/ec_lib.c:926:27: Assignment
924.   
925.       return EC_POINTs_mul(group, r, g_scalar,
926.                            (point != NULL
                                 ^
927.                             && p_scalar != NULL), points, scalars, ctx);
928.   }

crypto/ec/ec_lib.c:925:12: Call
923.       scalars[0] = p_scalar;
924.   
925.       return EC_POINTs_mul(group, r, g_scalar,
                  ^
926.                            (point != NULL
927.                             && p_scalar != NULL), points, scalars, ctx);

crypto/ec/ec_lib.c:903:1: Parameter `num`
  901.    */
  902.   
  903. > int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
  904.                     size_t num, const EC_POINT *points[],
  905.                     const BIGNUM *scalars[], BN_CTX *ctx)

crypto/ec/ec_lib.c:909:16: Call
  907.       if (group->meth->mul == 0)
  908.           /* use default */
  909.           return ec_wNAF_mul(group, r, scalar, num, points, scalars, ctx);
                        ^
  910.   
  911.       return group->meth->mul(group, r, scalar, num, points, scalars, ctx);

crypto/ec/ec_mult.c:154:1: <Offset trace>
152.    * in the addition if scalar != NULL
153.    */
154. > int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
155.                   size_t num, const EC_POINT *points[], const BIGNUM *scalars[],
156.                   BN_CTX *ctx)

crypto/ec/ec_mult.c:154:1: Parameter `num`
    152.    * in the addition if scalar != NULL
    153.    */
    154. > int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
    155.                   size_t num, const EC_POINT *points[], const BIGNUM *scalars[],
    156.                   BN_CTX *ctx)

crypto/ec/ec_mult.c:154:1: <Length trace>
152.    * in the addition if scalar != NULL
153.    */
154. > int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
155.                   size_t num, const EC_POINT *points[], const BIGNUM *scalars[],
156.                   BN_CTX *ctx)

crypto/ec/ec_mult.c:154:1: Parameter `num`
    152.    * in the addition if scalar != NULL
    153.    */
    154. > int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
    155.                   size_t num, const EC_POINT *points[], const BIGNUM *scalars[],
    156.                   BN_CTX *ctx)

crypto/ec/ec_mult.c:248:5: Assignment
    246.       }
    247.   
    248.       totalnum = num + numblocks;
               ^
    249.   
    250.       wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]);

crypto/ec/ec_mult.c:250:13: Call
    248.       totalnum = num + numblocks;
    249.   
    250.       wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]);
                       ^
    251.       wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]);
    252.       wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]); /* includes space

crypto/mem.c:125:9: Assignment
      123.   
      124.       if (num <= 0)
      125.           return NULL;
                     ^
      126.   
      127.       allow_customize = 0;

crypto/ec/ec_mult.c:250:5: Assignment
    248.       totalnum = num + numblocks;
    249.   
    250.       wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]);
               ^
    251.       wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]);
    252.       wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]); /* includes space

crypto/ec/ec_mult.c:274:9: Array access: Offset: [0, 1] Size: [0, +oo] by call to `EC_POINTs_mul` 
    272.   
    273.           bits = i < num ? BN_num_bits(scalars[i]) : BN_num_bits(scalar);
    274.           wsize[i] = EC_window_bits_for_scalar_size(bits);
                   ^
    275.           num_val += (size_t)1 << (wsize[i] - 1);
    276.           wNAF[i + 1] = NULL;     /* make sure we always have a pivot */

int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,
                size_t num, const EC_POINT *points[], const BIGNUM *scalars[],
                BN_CTX *ctx)
{
    BN_CTX *new_ctx = NULL;
    const EC_POINT *generator = NULL;
    EC_POINT *tmp = NULL;
    size_t totalnum;
    size_t blocksize = 0, numblocks = 0;
    size_t pre_points_per_block = 0;
    size_t i, j;
    int k;
    int r_is_inverted = 0;
    int r_is_at_infinity = 1;
    size_t *wsize = NULL;
    signed char **wNAF = NULL;
    size_t *wNAF_len = NULL;
    size_t max_len = 0;
    size_t num_val;
    EC_POINT **val = NULL;
    EC_POINT **v;
    EC_POINT ***val_sub = NULL;
    const EC_PRE_COMP *pre_comp = NULL;
    int num_scalar = 0;
    int ret = 0;
    if (group->meth != r->meth) {
        ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS);
        return 0;
    }
    if ((scalar == NULL) && (num == 0)) {
        return EC_POINT_set_to_infinity(group, r);
    }
    for (i = 0; i < num; i++) {
        if (group->meth != points[i]->meth) {
            ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS);
            return 0;
        }
    }
    if (ctx == NULL) {
        ctx = new_ctx = BN_CTX_new();
        if (ctx == NULL)
            goto err;
    }
    if (scalar != NULL) {
        generator = EC_GROUP_get0_generator(group);
        if (generator == NULL) {
            ECerr(EC_F_EC_WNAF_MUL, EC_R_UNDEFINED_GENERATOR);
            goto err;
        }
        pre_comp = group->pre_comp.ec;
        if (pre_comp && pre_comp->numblocks
            && (EC_POINT_cmp(group, generator, pre_comp->points[0], ctx) ==
                0)) {
            blocksize = pre_comp->blocksize;
            numblocks = (BN_num_bits(scalar) / blocksize) + 1;
            if (numblocks > pre_comp->numblocks)
                numblocks = pre_comp->numblocks;
            pre_points_per_block = (size_t)1 << (pre_comp->w - 1);
            if (pre_comp->num != (pre_comp->numblocks * pre_points_per_block)) {
                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                goto err;
            }
        } else {
            pre_comp = NULL;
            numblocks = 1;
            num_scalar = 1;
        }
    }
    totalnum = num + numblocks;
    wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]);
    wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]);
    wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]);
    val_sub = OPENSSL_malloc(totalnum * sizeof val_sub[0]);
    if (wNAF != NULL)
        wNAF[0] = NULL;
    if (wsize == NULL || wNAF_len == NULL || wNAF == NULL || val_sub == NULL) {
        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    num_val = 0;
    for (i = 0; i < num + num_scalar; i++) {
        size_t bits;
        bits = i < num ? BN_num_bits(scalars[i]) : BN_num_bits(scalar);
        wsize[i] = EC_window_bits_for_scalar_size(bits);
        num_val += (size_t)1 << (wsize[i] - 1);
        wNAF[i + 1] = NULL;
        wNAF[i] =
            bn_compute_wNAF((i < num ? scalars[i] : scalar), wsize[i],
                            &wNAF_len[i]);
        if (wNAF[i] == NULL)
            goto err;
        if (wNAF_len[i] > max_len)
            max_len = wNAF_len[i];
    }
    if (numblocks) {
        if (pre_comp == NULL) {
            if (num_scalar != 1) {
                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                goto err;
            }
        } else {
            signed char *tmp_wNAF = NULL;
            size_t tmp_len = 0;
            if (num_scalar != 0) {
                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                goto err;
            }
            wsize[num] = pre_comp->w;
            tmp_wNAF = bn_compute_wNAF(scalar, wsize[num], &tmp_len);
            if (!tmp_wNAF)
                goto err;
            if (tmp_len <= max_len) {
                numblocks = 1;
                totalnum = num + 1;
                wNAF[num] = tmp_wNAF;
                wNAF[num + 1] = NULL;
                wNAF_len[num] = tmp_len;
                if (tmp_len > max_len)
                    max_len = tmp_len;
                val_sub[num] = pre_comp->points;
            } else {
                signed char *pp;
                EC_POINT **tmp_points;
                if (tmp_len < numblocks * blocksize) {
                    numblocks = (tmp_len + blocksize - 1) / blocksize;
                    if (numblocks > pre_comp->numblocks) {
                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                        goto err;
                    }
                    totalnum = num + numblocks;
                }
                pp = tmp_wNAF;
                tmp_points = pre_comp->points;
                for (i = num; i < totalnum; i++) {
                    if (i < totalnum - 1) {
                        wNAF_len[i] = blocksize;
                        if (tmp_len < blocksize) {
                            ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                            goto err;
                        }
                        tmp_len -= blocksize;
                    } else
                        wNAF_len[i] = tmp_len;
                    wNAF[i + 1] = NULL;
                    wNAF[i] = OPENSSL_malloc(wNAF_len[i]);
                    if (wNAF[i] == NULL) {
                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);
                        OPENSSL_free(tmp_wNAF);
                        goto err;
                    }
                    memcpy(wNAF[i], pp, wNAF_len[i]);
                    if (wNAF_len[i] > max_len)
                        max_len = wNAF_len[i];
                    if (*tmp_points == NULL) {
                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
                        OPENSSL_free(tmp_wNAF);
                        goto err;
                    }
                    val_sub[i] = tmp_points;
                    tmp_points += pre_points_per_block;
                    pp += blocksize;
                }
                OPENSSL_free(tmp_wNAF);
            }
        }
    }
    val = OPENSSL_malloc((num_val + 1) * sizeof val[0]);
    if (val == NULL) {
        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    val[num_val] = NULL;
    v = val;
    for (i = 0; i < num + num_scalar; i++) {
        val_sub[i] = v;
        for (j = 0; j < ((size_t)1 << (wsize[i] - 1)); j++) {
            *v = EC_POINT_new(group);
            if (*v == NULL)
                goto err;
            v++;
        }
    }
    if (!(v == val + num_val)) {
        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);
        goto err;
    }
    if ((tmp = EC_POINT_new(group)) == NULL)
        goto err;
    for (i = 0; i < num + num_scalar; i++) {
        if (i < num) {
            if (!EC_POINT_copy(val_sub[i][0], points[i]))
                goto err;
        } else {
            if (!EC_POINT_copy(val_sub[i][0], generator))
                goto err;
        }
        if (wsize[i] > 1) {
            if (!EC_POINT_dbl(group, tmp, val_sub[i][0], ctx))
                goto err;
            for (j = 1; j < ((size_t)1 << (wsize[i] - 1)); j++) {
                if (!EC_POINT_add
                    (group, val_sub[i][j], val_sub[i][j - 1], tmp, ctx))
                    goto err;
            }
        }
    }
    if (!EC_POINTs_make_affine(group, num_val, val, ctx))
        goto err;
    r_is_at_infinity = 1;
    for (k = max_len - 1; k >= 0; k--) {
        if (!r_is_at_infinity) {
            if (!EC_POINT_dbl(group, r, r, ctx))
                goto err;
        }
        for (i = 0; i < totalnum; i++) {
            if (wNAF_len[i] > (size_t)k) {
                int digit = wNAF[i][k];
                int is_neg;
                if (digit) {
                    is_neg = digit < 0;
                    if (is_neg)
                        digit = -digit;
                    if (is_neg != r_is_inverted) {
                        if (!r_is_at_infinity) {
                            if (!EC_POINT_invert(group, r, ctx))
                                goto err;
                        }
                        r_is_inverted = !r_is_inverted;
                    }
                    if (r_is_at_infinity) {
                        if (!EC_POINT_copy(r, val_sub[i][digit >> 1]))
                            goto err;
                        r_is_at_infinity = 0;
                    } else {
                        if (!EC_POINT_add
                            (group, r, r, val_sub[i][digit >> 1], ctx))
                            goto err;
                    }
                }
            }
        }
    }
    if (r_is_at_infinity) {
        if (!EC_POINT_set_to_infinity(group, r))
            goto err;
    } else {
        if (r_is_inverted)
            if (!EC_POINT_invert(group, r, ctx))
                goto err;
    }
    ret = 1;
 err:
    BN_CTX_free(new_ctx);
    EC_POINT_free(tmp);
    OPENSSL_free(wsize);
    OPENSSL_free(wNAF_len);
    if (wNAF != NULL) {
        signed char **w;
        for (w = wNAF; *w != NULL; w++)
            OPENSSL_free(*w);
        OPENSSL_free(wNAF);
    }
    if (val != NULL) {
        for (v = val; *v != NULL; v++)
            EC_POINT_clear_free(*v);
        OPENSSL_free(val);
    }
    OPENSSL_free(val_sub);
    return ret;
}
['int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *g_scalar,\n                 const EC_POINT *point, const BIGNUM *p_scalar, BN_CTX *ctx)\n{\n    const EC_POINT *points[1];\n    const BIGNUM *scalars[1];\n    points[0] = point;\n    scalars[0] = p_scalar;\n    return EC_POINTs_mul(group, r, g_scalar,\n                         (point != NULL\n                          && p_scalar != NULL), points, scalars, ctx);\n}', 'int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,\n                  size_t num, const EC_POINT *points[],\n                  const BIGNUM *scalars[], BN_CTX *ctx)\n{\n    if (group->meth->mul == 0)\n        return ec_wNAF_mul(group, r, scalar, num, points, scalars, ctx);\n    return group->meth->mul(group, r, scalar, num, points, scalars, ctx);\n}', 'int ec_wNAF_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *scalar,\n                size_t num, const EC_POINT *points[], const BIGNUM *scalars[],\n                BN_CTX *ctx)\n{\n    BN_CTX *new_ctx = NULL;\n    const EC_POINT *generator = NULL;\n    EC_POINT *tmp = NULL;\n    size_t totalnum;\n    size_t blocksize = 0, numblocks = 0;\n    size_t pre_points_per_block = 0;\n    size_t i, j;\n    int k;\n    int r_is_inverted = 0;\n    int r_is_at_infinity = 1;\n    size_t *wsize = NULL;\n    signed char **wNAF = NULL;\n    size_t *wNAF_len = NULL;\n    size_t max_len = 0;\n    size_t num_val;\n    EC_POINT **val = NULL;\n    EC_POINT **v;\n    EC_POINT ***val_sub = NULL;\n    const EC_PRE_COMP *pre_comp = NULL;\n    int num_scalar = 0;\n    int ret = 0;\n    if (group->meth != r->meth) {\n        ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS);\n        return 0;\n    }\n    if ((scalar == NULL) && (num == 0)) {\n        return EC_POINT_set_to_infinity(group, r);\n    }\n    for (i = 0; i < num; i++) {\n        if (group->meth != points[i]->meth) {\n            ECerr(EC_F_EC_WNAF_MUL, EC_R_INCOMPATIBLE_OBJECTS);\n            return 0;\n        }\n    }\n    if (ctx == NULL) {\n        ctx = new_ctx = BN_CTX_new();\n        if (ctx == NULL)\n            goto err;\n    }\n    if (scalar != NULL) {\n        generator = EC_GROUP_get0_generator(group);\n        if (generator == NULL) {\n            ECerr(EC_F_EC_WNAF_MUL, EC_R_UNDEFINED_GENERATOR);\n            goto err;\n        }\n        pre_comp = group->pre_comp.ec;\n        if (pre_comp && pre_comp->numblocks\n            && (EC_POINT_cmp(group, generator, pre_comp->points[0], ctx) ==\n                0)) {\n            blocksize = pre_comp->blocksize;\n            numblocks = (BN_num_bits(scalar) / blocksize) + 1;\n            if (numblocks > pre_comp->numblocks)\n                numblocks = pre_comp->numblocks;\n            pre_points_per_block = (size_t)1 << (pre_comp->w - 1);\n            if (pre_comp->num != (pre_comp->numblocks * pre_points_per_block)) {\n                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                goto err;\n            }\n        } else {\n            pre_comp = NULL;\n            numblocks = 1;\n            num_scalar = 1;\n        }\n    }\n    totalnum = num + numblocks;\n    wsize = OPENSSL_malloc(totalnum * sizeof wsize[0]);\n    wNAF_len = OPENSSL_malloc(totalnum * sizeof wNAF_len[0]);\n    wNAF = OPENSSL_malloc((totalnum + 1) * sizeof wNAF[0]);\n    val_sub = OPENSSL_malloc(totalnum * sizeof val_sub[0]);\n    if (wNAF != NULL)\n        wNAF[0] = NULL;\n    if (wsize == NULL || wNAF_len == NULL || wNAF == NULL || val_sub == NULL) {\n        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n        goto err;\n    }\n    num_val = 0;\n    for (i = 0; i < num + num_scalar; i++) {\n        size_t bits;\n        bits = i < num ? BN_num_bits(scalars[i]) : BN_num_bits(scalar);\n        wsize[i] = EC_window_bits_for_scalar_size(bits);\n        num_val += (size_t)1 << (wsize[i] - 1);\n        wNAF[i + 1] = NULL;\n        wNAF[i] =\n            bn_compute_wNAF((i < num ? scalars[i] : scalar), wsize[i],\n                            &wNAF_len[i]);\n        if (wNAF[i] == NULL)\n            goto err;\n        if (wNAF_len[i] > max_len)\n            max_len = wNAF_len[i];\n    }\n    if (numblocks) {\n        if (pre_comp == NULL) {\n            if (num_scalar != 1) {\n                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                goto err;\n            }\n        } else {\n            signed char *tmp_wNAF = NULL;\n            size_t tmp_len = 0;\n            if (num_scalar != 0) {\n                ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                goto err;\n            }\n            wsize[num] = pre_comp->w;\n            tmp_wNAF = bn_compute_wNAF(scalar, wsize[num], &tmp_len);\n            if (!tmp_wNAF)\n                goto err;\n            if (tmp_len <= max_len) {\n                numblocks = 1;\n                totalnum = num + 1;\n                wNAF[num] = tmp_wNAF;\n                wNAF[num + 1] = NULL;\n                wNAF_len[num] = tmp_len;\n                if (tmp_len > max_len)\n                    max_len = tmp_len;\n                val_sub[num] = pre_comp->points;\n            } else {\n                signed char *pp;\n                EC_POINT **tmp_points;\n                if (tmp_len < numblocks * blocksize) {\n                    numblocks = (tmp_len + blocksize - 1) / blocksize;\n                    if (numblocks > pre_comp->numblocks) {\n                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                        goto err;\n                    }\n                    totalnum = num + numblocks;\n                }\n                pp = tmp_wNAF;\n                tmp_points = pre_comp->points;\n                for (i = num; i < totalnum; i++) {\n                    if (i < totalnum - 1) {\n                        wNAF_len[i] = blocksize;\n                        if (tmp_len < blocksize) {\n                            ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                            goto err;\n                        }\n                        tmp_len -= blocksize;\n                    } else\n                        wNAF_len[i] = tmp_len;\n                    wNAF[i + 1] = NULL;\n                    wNAF[i] = OPENSSL_malloc(wNAF_len[i]);\n                    if (wNAF[i] == NULL) {\n                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n                        OPENSSL_free(tmp_wNAF);\n                        goto err;\n                    }\n                    memcpy(wNAF[i], pp, wNAF_len[i]);\n                    if (wNAF_len[i] > max_len)\n                        max_len = wNAF_len[i];\n                    if (*tmp_points == NULL) {\n                        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n                        OPENSSL_free(tmp_wNAF);\n                        goto err;\n                    }\n                    val_sub[i] = tmp_points;\n                    tmp_points += pre_points_per_block;\n                    pp += blocksize;\n                }\n                OPENSSL_free(tmp_wNAF);\n            }\n        }\n    }\n    val = OPENSSL_malloc((num_val + 1) * sizeof val[0]);\n    if (val == NULL) {\n        ECerr(EC_F_EC_WNAF_MUL, ERR_R_MALLOC_FAILURE);\n        goto err;\n    }\n    val[num_val] = NULL;\n    v = val;\n    for (i = 0; i < num + num_scalar; i++) {\n        val_sub[i] = v;\n        for (j = 0; j < ((size_t)1 << (wsize[i] - 1)); j++) {\n            *v = EC_POINT_new(group);\n            if (*v == NULL)\n                goto err;\n            v++;\n        }\n    }\n    if (!(v == val + num_val)) {\n        ECerr(EC_F_EC_WNAF_MUL, ERR_R_INTERNAL_ERROR);\n        goto err;\n    }\n    if ((tmp = EC_POINT_new(group)) == NULL)\n        goto err;\n    for (i = 0; i < num + num_scalar; i++) {\n        if (i < num) {\n            if (!EC_POINT_copy(val_sub[i][0], points[i]))\n                goto err;\n        } else {\n            if (!EC_POINT_copy(val_sub[i][0], generator))\n                goto err;\n        }\n        if (wsize[i] > 1) {\n            if (!EC_POINT_dbl(group, tmp, val_sub[i][0], ctx))\n                goto err;\n            for (j = 1; j < ((size_t)1 << (wsize[i] - 1)); j++) {\n                if (!EC_POINT_add\n                    (group, val_sub[i][j], val_sub[i][j - 1], tmp, ctx))\n                    goto err;\n            }\n        }\n    }\n    if (!EC_POINTs_make_affine(group, num_val, val, ctx))\n        goto err;\n    r_is_at_infinity = 1;\n    for (k = max_len - 1; k >= 0; k--) {\n        if (!r_is_at_infinity) {\n            if (!EC_POINT_dbl(group, r, r, ctx))\n                goto err;\n        }\n        for (i = 0; i < totalnum; i++) {\n            if (wNAF_len[i] > (size_t)k) {\n                int digit = wNAF[i][k];\n                int is_neg;\n                if (digit) {\n                    is_neg = digit < 0;\n                    if (is_neg)\n                        digit = -digit;\n                    if (is_neg != r_is_inverted) {\n                        if (!r_is_at_infinity) {\n                            if (!EC_POINT_invert(group, r, ctx))\n                                goto err;\n                        }\n                        r_is_inverted = !r_is_inverted;\n                    }\n                    if (r_is_at_infinity) {\n                        if (!EC_POINT_copy(r, val_sub[i][digit >> 1]))\n                            goto err;\n                        r_is_at_infinity = 0;\n                    } else {\n                        if (!EC_POINT_add\n                            (group, r, r, val_sub[i][digit >> 1], ctx))\n                            goto err;\n                    }\n                }\n            }\n        }\n    }\n    if (r_is_at_infinity) {\n        if (!EC_POINT_set_to_infinity(group, r))\n            goto err;\n    } else {\n        if (r_is_inverted)\n            if (!EC_POINT_invert(group, r, ctx))\n                goto err;\n    }\n    ret = 1;\n err:\n    BN_CTX_free(new_ctx);\n    EC_POINT_free(tmp);\n    OPENSSL_free(wsize);\n    OPENSSL_free(wNAF_len);\n    if (wNAF != NULL) {\n        signed char **w;\n        for (w = wNAF; *w != NULL; w++)\n            OPENSSL_free(*w);\n        OPENSSL_free(wNAF);\n    }\n    if (val != NULL) {\n        for (v = val; *v != NULL; v++)\n            EC_POINT_clear_free(*v);\n        OPENSSL_free(val);\n    }\n    OPENSSL_free(val_sub);\n    return ret;\n}', 'void *CRYPTO_malloc(size_t num, const char *file, int line)\n{\n    void *ret = NULL;\n    if (num <= 0)\n        return NULL;\n    allow_customize = 0;\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;\n    (void)line;\n    ret = malloc(num);\n#endif\n#ifndef OPENSSL_CPUID_OBJ\n    if (ret && (num > 2048)) {\n        extern unsigned char cleanse_ctr;\n        ((unsigned char *)ret)[0] = cleanse_ctr;\n    }\n#endif\n    return ret;\n}']