misaligned pointer dereference: address must be a multiple of 0x2

[john916zhang]

Thanks for developing this wonderful tools. However, after I set the system proxy to 127.0.0.1, the program crashes immediately. BTW, I am using Macbook Pro M1X. Thanks.

faf-dns-proxy v0.9.2 | repo: https://github.com/errantmind/faf-dns-proxy

  35ms -> gateway.icloud.com                             UNKNOWN  IN         8.8.4.4     [1]
thread 'tokio-runtime-worker' panicked at src/dns.rs:180:35:
misaligned pointer dereference: address must be a multiple of 0x2 but is 0x140138029
stack backtrace:
   0: rust_begin_unwind
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:647:5
   1: core::panicking::panic_nounwind_fmt::runtime
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panicking.rs:110:18
   2: core::panicking::panic_nounwind_fmt
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panicking.rs:122:9
   3: core::panicking::panic_misaligned_pointer_dereference
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panicking.rs:221:5
   4: faf_dns_proxy::proxy::handle_reads::{{closure}}
   5: tokio::runtime::task::core::Core<T,S>::poll::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/core.rs:328:17
   6: tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/loom/std/unsafe_cell.rs:16:9
   7: tokio::runtime::task::core::Core<T,S>::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/core.rs:317:30
   8: tokio::runtime::task::harness::poll_future::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:485:19
   9: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panic/unwind_safe.rs:272:9
  10: std::panicking::try::do_call
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:554:40
  11: std::panicking::try
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:518:19
  12: std::panic::catch_unwind
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panic.rs:142:14
  13: tokio::runtime::task::harness::poll_future
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:473:18
  14: tokio::runtime::task::harness::Harness<T,S>::poll_inner
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:208:27
  15: tokio::runtime::task::harness::Harness<T,S>::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:153:15
  16: tokio::runtime::task::raw::RawTask::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/raw.rs:201:18
  17: tokio::runtime::task::LocalNotified<S>::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/mod.rs:416:9
  18: tokio::runtime::scheduler::multi_thread::worker::Context::run_task::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:576:18
  19: tokio::runtime::coop::with_budget
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:107:5
  20: tokio::runtime::coop::budget
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:73:5
  21: tokio::runtime::scheduler::multi_thread::worker::Context::run_task
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:575:9
  22: tokio::runtime::scheduler::multi_thread::worker::Context::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:526:24
  23: tokio::runtime::scheduler::multi_thread::worker::run::{{closure}}::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:491:21
  24: tokio::runtime::context::scoped::Scoped<T>::set
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/scoped.rs:40:9
  25: tokio::runtime::scheduler::multi_thread::worker::run::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:486:9
  26: tokio::runtime::context::runtime::enter_runtime
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/runtime.rs:65:16
  27: tokio::runtime::scheduler::multi_thread::worker::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:478:5
  28: tokio::runtime::scheduler::multi_thread::worker::Launch::launch::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/multi_thread/worker.rs:447:45
  29: <tokio::runtime::blocking::task::BlockingTask<T> as core::future::future::Future>::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/blocking/task.rs:42:21
  30: tokio::runtime::task::core::Core<T,S>::poll::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/core.rs:328:17
  31: tokio::loom::std::unsafe_cell::UnsafeCell<T>::with_mut
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/loom/std/unsafe_cell.rs:16:9
  32: tokio::runtime::task::core::Core<T,S>::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/core.rs:317:30
  33: tokio::runtime::task::harness::poll_future::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:485:19
  34: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/core/src/panic/unwind_safe.rs:272:9
  35: std::panicking::try::do_call
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:554:40
  36: std::panicking::try
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panicking.rs:518:19
  37: std::panic::catch_unwind
             at /rustc/25ef9e3d85d934b27d9dada2f9dd52b1dc63bb04/library/std/src/panic.rs:142:14
  38: tokio::runtime::task::harness::poll_future
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:473:18
  39: tokio::runtime::task::harness::Harness<T,S>::poll_inner
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:208:27
  40: tokio::runtime::task::harness::Harness<T,S>::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/harness.rs:153:15
  41: tokio::runtime::task::raw::RawTask::poll
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/raw.rs:201:18
  42: tokio::runtime::task::UnownedTask<S>::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/task/mod.rs:453:9
  43: tokio::runtime::blocking::pool::Task::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/blocking/pool.rs:159:9
  44: tokio::runtime::blocking::pool::Inner::run
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/blocking/pool.rs:513:17
  45: tokio::runtime::blocking::pool::Spawner::spawn_thread::{{closure}}
             at /Users/jp/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/blocking/pool.rs:471:13
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
thread caused non-unwinding panic. aborting.
[1]    89189 abort      RUST_BACKTRACE=1 cargo run