pkey_mprotect(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1, 0xffffffffffffffff)
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
getsockopt$inet6_tcp_int(r0, 0x6, 0x1a, 0x0, &(0x7f0000000180))