r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
pkey_mprotect(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000140)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x17)