socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
write$binfmt_aout(r0, 0x0, 0x0)
ioctl$sock_TIOCINQ(r1, 0x541b, &(0x7f0000000140))