socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) sendmmsg(r0, &(0x7f0000003180)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000000700)=[{0x10}], 0xf}}], 0x1, 0x0)