istio-proxy restarts due to segmentation faults

Issue

• istio-proxies crashes with SIGSEGV

• coredump backtrace showing

  $ gdb /usr/lib/debug/usr/local/bin/envoy-2.1.1-1.el8.x86_64.debug core.envoy
  #1  raise (sig=11) at ../sysdeps/unix/sysv/linux/raise.c:40
  40      __libc_signal_block_app (&set);
  #2  0x00005582768346c9 in Envoy::SignalAction::sigHandler(int, siginfo_t*, void*) ()
  #3  0x00007fc9e98acc20 in __flockfile (stream=0x0) at ../sysdeps/pthread/flockfile.c:28
  28      _IO_lock_lock (*stream->_lock);
  #4  0x0000000000000007 in ?? ()
  #5  0x0000000000000000 in ?? ()