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fix: add buffer-length check in stoolap.c #6

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fix: add buffer-length check in stoolap.c #6

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3 changes: 2 additions & 1 deletion src/stoolap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -286,6 +286,7 @@ static int js_to_value(napi_env env, napi_value jsval, StoolapValue* out,
void* data;
size_t len;
napi_get_buffer_info(env, jsval, &data, &len);
if (len == SIZE_MAX) return -1; /* prevent len+1 integer overflow in malloc size */
char* buf = malloc(len + 1);
if (!buf) return -1;
memcpy(buf, data, len);
Expand Down Expand Up @@ -458,7 +459,7 @@ static int js_to_value_copy(napi_env env, napi_value jsval, StoolapValue* out,
napi_get_typedarray_info(env, jsval, &ta_type, &ta_len, &ta_data, NULL, NULL);
if (ta_type == napi_float32_array) {
size_t byte_len = ta_len * 4;
uint8_t* buf = malloc(byte_len);
uint8_t* buf = calloc(ta_len, 4); /* calloc validates nmemb*size overflow internally */
if (!buf) return -1;
if (byte_len > 0) memcpy(buf, ta_data, byte_len);
heap_bufs[*heap_buf_count] = (char*)buf;
Expand Down