r0 = socket$inet6(0xa, 0x1, 0x0)
r1 = fcntl$dupfd(r0, 0x0, r0)
bind$inet6(r1, &(0x7f00000000c0)={0xa, 0x7e, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c)
r2 = socket$inet6(0xa, 0x1, 0x0)
r3 = fcntl$dupfd(r2, 0x0, r2)
bind$inet6(r3, &(0x7f00000000c0)={0xa, 0x7e, 0x0, @empty}, 0x1c)