Python http.server - illegal hardware instruction

Bug Description

There is an unexpected failure from our unwrap_or_bypass_with for getaddrinfo detour when bypassed with Bypass::NullNode

Steps to Reproduce

Simply run python3 -m http.server 80 via mirrord with no extra arguments

mirrord exec python3 -- -m http.server 80

(if you provide --bind 0.0.0.0 or --bind :: everything works including the expected error when asking for --bind ::1)

Backtrace

Process:               Python [10632]
Path:                  /opt/homebrew/*/Python.framework/Versions/3.12/Resources/Python.app/Contents/MacOS/Python
Identifier:            org.python.python
Version:               3.12.4 (3.12.4)
Code Type:             ARM-64 (Native)
Parent Process:        zsh [81591]
Responsible:           stable [1083]
User ID:               501

Date/Time:             2024-08-14 10:57:44.4400 +0300
OS Version:            macOS 14.5 (23F79)
Report Version:        12
Anonymous UUID:        54462CB7-3237-FD4A-99FE-AF5F854D2573

Sleep/Wake UUID:       FFE5010F-C5EB-4D29-B97B-0BEF87723868

Time Awake Since Boot: 520000 seconds
Time Since Wake:       2192 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x00000000fffd93e0

Termination Reason:    Namespace SIGNAL, Code 4 Illegal instruction: 4
Terminating Process:   exc handler [10632]

Thread 0 Crashed::  Dispatch queue: com.apple.main-thread
0   ???                                    0x102b8907c ???
1   ???                                    0x102b8900c ???
2   libxpc.dylib                           0x19f6a8ea0 _xpc_bundle_resolve_sync + 588
3   libxpc.dylib                           0x19f67baac ___xpc_bundle_resolve_block_invoke + 240
4   libdispatch.dylib                      0x19f7c63e8 _dispatch_client_callout + 20
5   libdispatch.dylib                      0x19f7c7c68 _dispatch_once_callout + 32
6   libxpc.dylib                           0x19f6a8a88 _xpc_bundle_resolve + 124
7   libxpc.dylib                           0x19f67feb4 xpc_bundle_get_info_dictionary + 24
8   libsystem_trace.dylib                  0x19f6c2b58 _os_trace_init_slow + 112
9   libdispatch.dylib                      0x19f7c63e8 _dispatch_client_callout + 20
10  libdispatch.dylib                      0x19f7c7c68 _dispatch_once_callout + 32
11  libsystem_trace.dylib                  0x19f6c4f30 os_log_create + 856
12  libsystem_info.dylib                   0x19f9caf48 si_destination_compare_init_once + 76
13  libsystem_pthread.dylib                0x19f972cf4 __pthread_once_handler + 76
14  libsystem_platform.dylib               0x19f9a49e0 _os_once_callout + 32
15  libsystem_pthread.dylib                0x19f972c8c pthread_once + 100
16  libsystem_info.dylib                   0x19f9c9ce0 si_destination_compare + 116
17  libsystem_c.dylib                      0x19f819580 _isort + 136
18  libsystem_info.dylib                   0x19f9b1a80 _gai_sort_list + 216
19  libsystem_info.dylib                   0x19f9b0ad4 si_addrinfo + 1168
20  libsystem_info.dylib                   0x19f9b059c getaddrinfo + 168
21  12481619252624471300-libmirrord_layer.dylib        0x1090b8804 mirrord_layer::socket::hooks::getaddrinfo_detour::_$u7b$$u7b$closure$u7d$$u7d$::h9654e962c13b4426 + 116 (hooks.rs:280)
22  12481619252624471300-libmirrord_layer.dylib        0x108f3f2c4 mirrord_layer::detour::Detour$LT$S$GT$::unwrap_or_bypass_with::hbe0819bed1d479f5 + 188 (detour.rs:377)
23  12481619252624471300-libmirrord_layer.dylib        0x10908a300 mirrord_layer::socket::hooks::getaddrinfo_detour::h083a0b7b5600f886 + 384 (hooks.rs:271)
24  ???                                    0x102b5450c ???
25  Python                                 0x10311ed88 cfunction_call + 72
26  Python                                 0x1030cd348 _PyObject_MakeTpCall + 128
27  Python                                 0x1031c1580 _PyEval_EvalFrameDefault + 44000
28  Python                                 0x1031b6730 PyEval_EvalCode + 184
29  Python                                 0x1031b2fe4 builtin_exec + 416
30  Python                                 0x10311e4b8 cfunction_vectorcall_FASTCALL_KEYWORDS + 92
31  Python                                 0x1031c1420 _PyEval_EvalFrameDefault + 43648
32  Python                                 0x103238908 pymain_run_module + 228
33  Python                                 0x103238068 Py_RunMain + 428
34  Python                                 0x103238664 pymain_main + 304
35  Python                                 0x103238704 Py_BytesMain + 40
36  dyld                                   0x19f5ee0e0 start + 2360

Thread 0 crashed with ARM Thread State (64-bit):
    x0: 0x000000010906da14   x1: 0x0000000000000002   x2: 0x0000000000000046   x3: 0x000000010a269be8
    x4: 0x00000000002eace0   x5: 0x0000000000000020   x6: 0x0000000000000073   x7: 0x0000000000000830
    x8: 0x0000000102ba4640   x9: 0x0000000000000001  x10: 0x0000000102b8900c  x11: 0x0000000000000014
   x12: 0x0000000000000000  x13: 0x00000000001ff800  x14: 0x00000000000007fb  x15: 0x0000000060000000
   x16: 0x000000019f971da4  x17: 0x0000000150e04c90  x18: 0x0000000000000000  x19: 0x0000000130f06e60
   x20: 0x00006000023b5400  x21: 0x00006000023bc300  x22: 0x0000000000000005  x23: 0x00006000023b5400
   x24: 0x0000000151875800  x25: 0x0000000000000001  x26: 0x000000016d7a1be0  x27: 0x00000002064e8000
   x28: 0x0000600000fb8050   fp: 0x000000016d7a13d0   lr: 0x0000000102b8907c
    sp: 0x000000016d7a11a0   pc: 0x0000000102b8907c cpsr: 0x80001000
   far: 0x0000000000000000  esr: 0x02000000  Address size fault

Relevant Logs

2024-08-14T07:57:44.437312Z TRACE ThreadId(01) getaddrinfo: mirrord_layer::socket::ops: new rawish_node=None rawish_service=Some("80") raw_hints=Some(addrinfo { ai_flags: 1, ai_family: 0, ai_socktype: 1, ai_protocol: 0, ai_addrlen: 0, ai_canonname: 0x0, ai_addr: 0x0, ai_next: 0x0 })
2024-08-14T07:57:44.437350Z TRACE ThreadId(01) getaddrinfo: mirrord_layer::socket::ops: return=Bypass(NullNode) rawish_node=None rawish_service=Some("80") raw_hints=Some(addrinfo { ai_flags: 1, ai_family: 0, ai_socktype: 1, ai_protocol: 0, ai_addrlen: 0, ai_canonname: 0x0, ai_addr: 0x0, ai_next: 0x0 })
2024-08-14T07:57:44.437367Z TRACE ThreadId(01) getaddrinfo: mirrord_layer::socket::ops: close time.busy=41.0µs time.idle=14.6µs rawish_node=None rawish_service=Some("80") raw_hints=Some(addrinfo { ai_flags: 1, ai_family: 0, ai_socktype: 1, ai_protocol: 0, ai_addrlen: 0, ai_canonname: 0x0, ai_addr: 0x0, ai_next: 0x0 })
zsh: illegal hardware instruction  RUST_LOG=trace MIRRORD_PROGRESS_MODE=off  exec --target  python3 -- -m  80

Your operating system and version

macOS 14.5 (23F79)

Local process

/opt/homebrew/bin/python3

Local process version

3.12.4

Additional Info

This appears only to happen when IPv6 is available, when same command executes with mirrord container -- podman run python python3 -m http.server 80 it works fine

metalbear-co / mirrord