r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = socket$nl_xfrm(0x10, 0x3, 0x6)
r2 = dup(r0)
splice(r1, &(0x7f0000000040), r2, &(0x7f0000000080), 0xffff, 0x0)