r0 = epoll_create(0x53) r1 = signalfd4(0xffffffffffffffff, &(0x7f00000000c0), 0x8, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f0000000100)) r2 = epoll_create(0x1) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r0, &(0x7f0000000000))