socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000003100)={<r0=>0xffffffffffffffff})
setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000040)={0x1, &(0x7f0000000000)=[{0x6}]}, 0x10)
setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1b, &(0x7f0000003180)={0x0, 0x0}, 0x10)