r0 = socket$inet(0xa, 0x3, 0xff)
r1 = dup(r0)
sendmsg$inet6(r1, &(0x7f00000004c0)={&(0x7f0000000000)={0xa, 0x0, 0x0, @loopback}, 0x1c, &(0x7f0000000200)=[{&(0x7f0000000080)="5476399cc070c5457d97a34fb71f1c26f411f933fd890e31f901030a9d918a9f706d5df811e8a60b", 0x28}], 0x1, &(0x7f0000001580)=ANY=[@ANYBLOB="1400000000000000290000000b00000000000b920000000010010000000000002900000037"], 0x128}, 0x0)