3002  socket(PF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE) = 3
3002  setsockopt(3, SOL_SOCKET, SO_SNDBUF, [32768], 4) = 0
3002  setsockopt(3, SOL_SOCKET, SO_RCVBUF, [1048576], 4) = 0
3002  bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
3002  getsockname(3, {sa_family=AF_NETLINK, pid=3002, groups=00000000}, [12]) = 0
3002  open("/proc/self/ns/net", O_RDONLY) = -1 EACCES (Permission denied)
3002  dup(2)                            = 4
3002  fcntl(4, F_GETFL)                 = 0x8002 (flags O_RDWR|O_LARGEFILE)
3002  brk(NULL)                         = 0xaa7000
3002  brk(0xac8000)                     = 0xac8000
3002  fstat(4, 0x7ffea77c5be0)          = -1 EACCES (Permission denied)
3002  write(4, "open(\"/proc/self/ns/net\"): Permi"..., 45) = 45
3002  close(4)                          = 0
3002  exit_group(1)