evutil_weakrand_seed_(struct evutil_weakrand_state *state, ev_uint32_t seed)
{
	if (seed == 0) {
		struct timeval tv;
		evutil_gettimeofday(&tv, NULL);
		seed = (ev_uint32_t)tv.tv_sec + (ev_uint32_t)tv.tv_usec;
#ifdef _WIN32
		seed += (ev_uint32_t) _getpid();
#else
		seed += (ev_uint32_t) getpid();
#endif
	}
	state->seed = seed;
	return seed;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.