r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
sendmmsg$inet6(r0, &(0x7f0000006840)=[{{&(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c, 0x0}}], 0x1, 0x24044054)
ioctl$sock_TIOCOUTQ(r0, 0x5411, &(0x7f0000000000))