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Bug #17754

closed

NoMethodError#to_s makes segmentation fault when Module#name returns non string value

Added by kachick (Kenichi Kamiya) 19 days ago. Updated 13 days ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Target version:
-
ruby -v:
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin20]
[ruby-core:103062]

Description

GH-PR: https://github.com/ruby/ruby/pull/4328

This code makes segmentation fault.

$ ruby -v
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin20]
pre = Module.new do
  def name
    :Foo
  end
end
mod = Module.new
mod.singleton_class.prepend(pre)
mod.this_method_does_not_exist

Reported file is below.

Process:               ruby [82842]
Path:                  /Users/USER/*/ruby
Identifier:            ruby
Version:               0
Code Type:             X86-64 (Native)
Parent Process:        zsh [36190]
Responsible:           iTerm2 [775]
User ID:               501

Date/Time:             2021-03-27 23:04:09.684 +0900
OS Version:            macOS 11.2.3 (20D91)
Report Version:        12
Bridge OS Version:     5.2 (18P4347)
Anonymous UUID:        45AC3339-EF82-D14F-C1BE-DDCB9F9108C6

Sleep/Wake UUID:       08C82E43-4D43-462C-A5F5-2BCAC20792A6

Time Awake Since Boot: 320000 seconds
Time Since Wake:       9300 seconds

System Integrity Protection: enabled

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

Exception Type:        EXC_BAD_ACCESS (SIGABRT)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000cbcb0c
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0xcbcb0c:
--> 
    __TEXT                      10e3f2000-10e73e000    [ 3376K] r-x/r-x SM=COW  /Users/*

Application Specific Information:
abort() called

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff203fd462 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff2042b610 pthread_kill + 263
2   libsystem_c.dylib               0x00007fff2037e720 abort + 120
3   ruby                            0x000000010e4a03e9 die + 9 (error.c:750)
4   ruby                            0x000000010e4a0619 rb_bug_for_fatal_signal + 553 (error.c:790)
5   ruby                            0x000000010e5dea7b sigsegv + 91 (signal.c:960)
6   libsystem_platform.dylib        0x00007fff2046fd7d _sigtramp + 29
7   ???                             000000000000000000 0 + 0
8   ruby                            0x000000010e66596f vm_call0_cfunc_with_frame + 226 (vm_eval.c:95) [inlined]
9   ruby                            0x000000010e66596f vm_call0_cfunc + 226 (vm_eval.c:109) [inlined]
10  ruby                            0x000000010e66596f vm_call0_body + 2223 (vm_eval.c:144)
11  ruby                            0x000000010e6664b4 rb_vm_call0 + 156 (vm_eval.c:57) [inlined]
12  ruby                            0x000000010e6664b4 rb_vm_call_kw + 156 (vm_eval.c:237) [inlined]
13  ruby                            0x000000010e6664b4 rb_check_funcall_default_kw + 996 (vm_eval.c:499)
14  ruby                            0x000000010e5434d0 convert_type_with_id + 15 (object.c:3090) [inlined]
15  ruby                            0x000000010e5434d0 rb_check_convert_type_with_id + 112 (object.c:3209)
16  ruby                            0x000000010e544d7e rb_String + 14 (object.c:3891)
17  ruby                            0x000000010e67d05f vm_call_cfunc_with_frame + 335 (vm_insnhelper.c:2898)
18  ruby                            0x000000010e674f3c vm_sendish + 1324
19  ruby                            0x000000010e65b9fb vm_exec_core + 18875 (insns.def:876)
20  ruby                            0x000000010e66fa29 rb_vm_exec + 2873
21  ruby                            0x000000010e680477 rb_vm_call0 + 151 (vm_eval.c:57) [inlined]
22  ruby                            0x000000010e680477 rb_vm_call_kw + 151 (vm_eval.c:237) [inlined]
23  ruby                            0x000000010e680477 rb_call0 + 1559 (vm_eval.c:361)
24  ruby                            0x000000010e6630a6 rb_call + 35 (vm_eval.c:689) [inlined]
25  ruby                            0x000000010e6630a6 rb_funcallv + 54 (vm_eval.c:930)
26  ruby                            0x000000010e66596f vm_call0_cfunc_with_frame + 226 (vm_eval.c:95) [inlined]
27  ruby                            0x000000010e66596f vm_call0_cfunc + 226 (vm_eval.c:109) [inlined]
28  ruby                            0x000000010e66596f vm_call0_body + 2223 (vm_eval.c:144)
29  ruby                            0x000000010e6664b4 rb_vm_call0 + 156 (vm_eval.c:57) [inlined]
30  ruby                            0x000000010e6664b4 rb_vm_call_kw + 156 (vm_eval.c:237) [inlined]
31  ruby                            0x000000010e6664b4 rb_check_funcall_default_kw + 996 (vm_eval.c:499)
32  ruby                            0x000000010e4a0f04 rb_get_message + 20 (error.c:1188)
33  ruby                            0x000000010e4aa59c rb_ec_error_print + 556 (eval_error.c:377)
34  ruby                            0x000000010e4aae34 error_handle + 308
35  ruby                            0x000000010e4ab307 rb_ec_cleanup + 583 (eval.c:262)
36  ruby                            0x000000010e4ab611 ruby_run_node + 97 (eval.c:375)
37  ruby                            0x000000010e3f36fd main + 93 (main.c:50)
38  libdyld.dylib                   0x00007fff20446621 start + 1

Thread 1:
0   libsystem_kernel.dylib          0x00007fff203fd4fe poll + 10
1   ruby                            0x000000010e62ae2e timer_pthread_fn + 158 (thread_pthread.c:2189)
2   libsystem_pthread.dylib         0x00007fff2042b950 _pthread_start + 224
3   libsystem_pthread.dylib         0x00007fff2042747b thread_start + 15

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x0000000114e04e00  rcx: 0x00007fd5298da7d8  rdx: 0x0000000000000000
  rdi: 0x0000000000000307  rsi: 0x0000000000000006  rbp: 0x00007fd5298da800  rsp: 0x00007fd5298da7d8
   r8: 0x00000000000130a8   r9: 0x00007fff88a65da8  r10: 0x0000000114e04e00  r11: 0x0000000000000246
  r12: 0x0000000000000307  r13: 0x00007fff88a65f80  r14: 0x0000000000000006  r15: 0x0000000000000016
  rip: 0x00007fff203fd462  rfl: 0x0000000000000246  cr2: 0x00007fbc82d69000

Logical CPU:     0
Error Code:      0x02000148
Trap Number:     133

Thread 0 instruction stream:
  58 9e 00 00 49 83 fc 08-75 56 48 89 df e8 ba f0  X...I...uVH.....
  09 00 49 89 c4 eb 49 48-8d 1d e6 36 2b 00 e9 21  ..I...IH...6+..!
  ff ff ff 48 8d 1d ba 36-2b 00 e9 15 ff ff ff f6  ...H...6+.......
  c3 01 0f 85 94 00 00 00-80 fb 0c 0f 85 97 00 00  ................
  00 48 8d 1d 6c 37 2b 00-e9 f7 fe ff ff 49 89 c4  .H..l7+......I..
  48 83 f8 34 74 82 49 83-fc 08 0f 84 78 ff ff ff  H..4t.I.....x...
 [49]8b 04 24 a9 00 20 00-00 75 12 89 c1 c1 e9 0e  I..$.. ..u...... <==
  83 e1 1f 48 85 c9 7f 13-e9 95 fe ff ff 49 8b 4c  ...H.........I.L
  24 10 48 85 c9 0f 8e 87-fe ff ff a9 00 20 00 00  $.H.......... ..
  75 07 49 8d 44 24 10 eb-0a 49 8b 44 24 18 48 85  u.I.D$...I.D$.H.
  c0 74 46 80 38 23 0f 85-66 fe ff ff 48 8d 35 71  .tF.8#..f...H.5q
  03 20 00 48 8d 7d 88 31-d2 4c 89 e9 e8 8b 15 15  . .H.}.1.L......

Thread 0 last branch register state not available.


Binary Images:
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       0x10fd5c000 -        0x10fd5ffff +encdb.bundle (0) <0BA6F22A-E674-3777-8660-9DB07F46623C> /Users/USER/*/encdb.bundle
       0x10fd6c000 -        0x10fd6ffff +transdb.bundle (0) <09D9EC8D-E6F1-32F6-A6EF-5A4BA55D2124> /Users/USER/*/transdb.bundle
       0x10fd7c000 -        0x10fd7ffff +monitor.bundle (0) <317112D2-72B2-3312-B49F-D78FC23E2F8A> /Users/USER/*/monitor.bundle
       0x114d2d000 -        0x114dc8fff  dyld (832.7.3) <0D4EA85F-7E30-338B-9215-314A5A5539B6> /usr/lib/dyld
    0x7fff20160000 -     0x7fff20161fff  libsystem_blocks.dylib (78) <E644CAA0-65B7-36E4-8041-520F3301F3DB> /usr/lib/system/libsystem_blocks.dylib
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    0x7fff20198000 -     0x7fff201affff  libsystem_trace.dylib (1277.80.2) <87FEF600-48D9-31C9-B8FC-D5249B2AE95D> /usr/lib/system/libsystem_trace.dylib
    0x7fff201b0000 -     0x7fff2024ffff  libcorecrypto.dylib (1000.80.5) <1EB11CFB-ABD7-36DD-97C7-C112A6601416> /usr/lib/system/libcorecrypto.dylib
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    0x7fff202fe000 -     0x7fff20386fff  libsystem_c.dylib (1439.40.11) <4AF71812-4099-3E96-B271-1F259491A2B2> /usr/lib/system/libsystem_c.dylib
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    0x7fff204a2000 -     0x7fff2093dfff  com.apple.CoreFoundation (6.9 - 1774.101) <2A0E160E-9EE6-3B23-8832-6979A16EC250> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
    0x7fff2093e000 -     0x7fff20b6dfff  com.apple.LaunchServices (1122.11 - 1122.11) <9ACD5692-3B92-3E6E-8B24-56ADCC911556> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
    0x7fff20b6e000 -     0x7fff20c41fff  com.apple.gpusw.MetalTools (1.0 - 1) <B1FDD261-7707-3E20-A6C2-99D9AF46356B> /System/Library/PrivateFrameworks/MetalTools.framework/Versions/A/MetalTools
    0x7fff20c42000 -     0x7fff20ea5fff  libBLAS.dylib (1336.40.1) <92702864-A5C6-3E22-86F6-DB329532674A> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
    0x7fff20ea6000 -     0x7fff20ef3fff  com.apple.Lexicon-framework (1.0 - 86.1) <2F429EBD-1BD2-3057-B760-8A81546DBD6F> /System/Library/PrivateFrameworks/Lexicon.framework/Versions/A/Lexicon
    0x7fff20ef4000 -     0x7fff20f62fff  libSparse.dylib (106) <B889DE4E-7356-3CC8-A13E-68D15E2024DF> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libSparse.dylib
    0x7fff20f63000 -     0x7fff20fe0fff  com.apple.SystemConfiguration (1.20 - 1.20) <3518EA0E-C32D-32CC-81B9-0F3C83B6430C> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration
    0x7fff20fe1000 -     0x7fff21016fff  libCRFSuite.dylib (50) <970D1F7B-5DBD-355F-80D8-C820AA1626D2> /usr/lib/libCRFSuite.dylib
    0x7fff21017000 -     0x7fff2124efff  libmecabra.dylib (929.1.1) <102A0AD8-D119-340B-B652-B75F0AAB1C7E> /usr/lib/libmecabra.dylib
    0x7fff2124f000 -     0x7fff215b2fff  com.apple.Foundation (6.9 - 1774.101) <8D9081B3-3F6A-31A0-9B20-1AE5CD8DD747> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
    0x7fff215b3000 -     0x7fff2169ffff  com.apple.LanguageModeling (1.0 - 247.1) <1A05BCD7-232F-3950-936D-EC0F95BA3FB0> /System/Library/PrivateFrameworks/LanguageModeling.framework/Versions/A/LanguageModeling
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    0x7fff22890000 -     0x7fff22899fff  libsystem_darwin.dylib (1439.40.11) <E016D8F7-C87F-36F8-B8A0-6A61B8E4BACB> /usr/lib/system/libsystem_darwin.dylib
    0x7fff2289a000 -     0x7fff22b81fff  com.apple.CoreServices.CarbonCore (1307 - 1307) <B857EADF-D517-34E8-8053-34C0E6695250> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
    0x7fff22bc1000 -     0x7fff22bfbfff  com.apple.CSStore (1122.11 - 1122.11) <89992991-8538-380B-B2B8-4EA997CBFDBE> /System/Library/PrivateFrameworks/CoreServicesStore.framework/Versions/A/CoreServicesStore
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    0x7fff24125000 -     0x7fff24768fff  libnetwork.dylib (2288.80.2) <A3F1E999-6D61-32D7-B3F7-67832CEA53CD> /usr/lib/libnetwork.dylib
    0x7fff24769000 -     0x7fff24c06fff  com.apple.CFNetwork (1220.1 - 1220.1) <04A917FB-DBFB-3432-BA4C-5B860990A420> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
    0x7fff24c07000 -     0x7fff24c15fff  libsystem_networkextension.dylib (1295.80.3) <5213D866-7D0E-3FD9-8E1A-03C0E39CEC44> /usr/lib/system/libsystem_networkextension.dylib
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    0x7fff25fd1000 -     0x7fff26190fff  libsqlite3.dylib (321.1) <ACCC6A4C-3257-38A4-8AFB-BA73D906205B> /usr/lib/libsqlite3.dylib
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    0x7fff26524000 -     0x7fff26526fff  libDiagnosticMessagesClient.dylib (112) <20EDB261-69C7-3E4A-8C00-878814186A62> /usr/lib/libDiagnosticMessagesClient.dylib
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    0x7fff27234000 -     0x7fff2723cfff  com.apple.CoreServices.FSEvents (1290.40.2 - 1290.40.2) <6B70B98B-BCC5-3FBE-A6B5-CD0696AA055A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/FSEvents.framework/Versions/A/FSEvents
    0x7fff2723d000 -     0x7fff27261fff  com.apple.coreservices.SharedFileList (144 - 144) <C861FAD6-D3A5-302C-88AE-B2813F7201A7> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SharedFileList.framework/Versions/A/SharedFileList
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    0x7fff27265000 -     0x7fff272adfff  com.apple.CoreAutoLayout (1.0 - 21.10.1) <7A2E42E6-3AF2-3ECB-8A16-5C4AC41206EE> /System/Library/PrivateFrameworks/CoreAutoLayout.framework/Versions/A/CoreAutoLayout
    0x7fff272ae000 -     0x7fff27390fff  libxml2.2.dylib (34.9) <E0BF29C7-869B-3DD5-82AE-F36E6398091A> /usr/lib/libxml2.2.dylib
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    0x7fff2a7e1000 -     0x7fff2a848fff  com.apple.SearchKit (1.4.1 - 1.4.1) <6243D4C0-3572-30A6-889A-B8690A5EAC24> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchKit.framework/Versions/A/SearchKit
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    0x7fff2a84b000 -     0x7fff2a872fff  com.apple.applesauce (1.0 - 16.26) <4A637FE0-A740-32F0-AE70-4593F6DF1573> /System/Library/PrivateFrameworks/AppleSauce.framework/Versions/A/AppleSauce
    0x7fff2a873000 -     0x7fff2a88afff  libapple_nghttp2.dylib (1.41) <A2F6DE8D-2B38-3669-A16E-E1BD54108F24> /usr/lib/libapple_nghttp2.dylib
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    0x7fff2a89e000 -     0x7fff2a89ffff  com.apple.MetalPerformanceShaders.MetalPerformanceShaders (1.0 - 1) <F37DBCE9-20CD-33D4-806B-93B326E08422> /System/Library/Frameworks/MetalPerformanceShaders.framework/Versions/A/MetalPerformanceShaders
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    0x7fff2ac61000 -     0x7fff2acaffff  com.apple.DictionaryServices (1.2 - 341) <5D0B1BB2-995B-32EB-AE75-F5F27127ACAF> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/DictionaryServices.framework/Versions/A/DictionaryServices
    0x7fff2acb0000 -     0x7fff2acc8fff  liblzma.5.dylib (16) <168D84A7-8E54-361E-9161-B661D96C0C9A> /usr/lib/liblzma.5.dylib
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    0x7fff2da66000 -     0x7fff2da66fff  liblaunch.dylib (2038.80.3) <C7C51322-8491-3B78-9CFA-2B4753662BCF> /usr/lib/system/liblaunch.dylib
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    0x7fff2fff5000 -     0x7fff2fff5fff  com.apple.Accelerate.vecLib (3.11 - vecLib 3.11) <8CD6F55A-8E4F-3653-A367-427D0ED3DD16> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
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    0x7fff302ea000 -     0x7fff302eafff  com.apple.Accelerate (1.11 - Accelerate 1.11) <2423F0F6-A3A4-37AB-971E-FCFC7645D282> /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
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External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 345136
    thread_create: 0
    thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=575.5M resident=0K(0%) swapped_out_or_unallocated=575.5M(100%)
Writable regions: Total=102.3M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=102.3M(100%)

                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
Activity Tracing                   256K        1 
Kernel Alloc Once                    8K        1 
MALLOC                            73.1M       26 
MALLOC guard page                   16K        4 
STACK GUARD                          4K        1 
Stack                             8712K        2 
Stack Guard                       56.0M        1 
VM_ALLOCATE                       20.3M       66 
__DATA                            2586K      147 
__DATA_CONST                      6437K      100 
__DATA_DIRTY                       289K       59 
__LINKEDIT                       490.3M       12 
__OBJC_RO                         60.5M        1 
__OBJC_RW                         2449K        2 
__TEXT                            85.2M      149 
__UNICODE                          588K        1 
mapped file                       8768K        1 
shared memory                        8K        2 
===========                     =======  ======= 
TOTAL                            814.9M      576 
Actions #1

Updated by kachick (Kenichi Kamiya) 19 days ago

  • Subject changed from NoMethodError#to_s makes segmentation fault when Module#name is overridden to NoMethodError#to_s makes segmentation fault when Module#name returns non string value
Actions #2

Updated by kachick (Kenichi Kamiya) 18 days ago

  • Status changed from Open to Closed

Applied in changeset git|0a544c0c35f7445d69402d7c53d825384c728017.


Fix segmentation fault when Module#name returns non string value [Bug #17754]

  • Add test for NoMethodError#to_s does not segfault

  • Ensure no segfault even if Module#name is overridden

Actions #3

Updated by nobu (Nobuyoshi Nakada) 18 days ago

  • Backport changed from 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN to 2.5: DONTNEED, 2.6: DONTNEED, 2.7: DONTNEED, 3.0: REQUIRED

Updated by naruse (Yui NARUSE) 13 days ago

  • Backport changed from 2.5: DONTNEED, 2.6: DONTNEED, 2.7: DONTNEED, 3.0: REQUIRED to 2.5: DONTNEED, 2.6: DONTNEED, 2.7: DONTNEED, 3.0: DONE

ruby_3_0 6abb8ee711a941b7ad31d21fdb429750f7ea4463 merged revision(s) 0a544c0c35f7445d69402d7c53d825384c728017.

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