r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$sock_int(r0, 0x1, 0x29, &(0x7f0000000040)=0xe1, 0x4)
sendmsg$inet6(r0, &(0x7f0000000400)={&(0x7f0000000100)={0xa, 0x4e20, 0x0, @dev}, 0x1c, 0x0}, 0x0)