r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
bind$inet6(r0, &(0x7f00000000c0)={0xa, 0x4e20, 0x0, @loopback}, 0x1c)
perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c)
sendmsg$inet6(r0, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000540)=[{&(0x7f00000001c0)="cf", 0xfffffdef}], 0x1}, 0x10044001)
sendmsg$inet6(r0, &(0x7f0000000080)={&(0x7f0000000040)={0xa, 0x4e22, 0x0, @ipv4={'\x00', '\xff\xff', @remote}, 0x9}, 0x1c, 0x0}, 0x0)