r0 = syz_io_uring_setup(0x50c8, &(0x7f0000000600), &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000000680), &(0x7f00000006c0))
io_uring_register$IORING_UNREGISTER_EVENTFD(r0, 0x5, 0x0, 0x0)