r0 = socket$unix(0x1, 0x1, 0x0)
sendmmsg(r0, &(0x7f0000003900)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)=[{0x10, 0x1, 0x2}], 0x10}}], 0x1, 0x0)