r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
sendmsg$inet6(r0, &(0x7f0000000d00)={&(0x7f0000000940)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @dev}}, 0x1c, &(0x7f0000000b80)=[{&(0x7f0000000980)="ff", 0x1}], 0x1}, 0x24000040)