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Demonstration of a segfault when parsing deeply-nested JSON arrays with yajl-ruby
Raw
nested.rb
#!/usr/bin/env ruby
require 'yajl'
depth = ARGV[0].to_i
root = []
a = root
depth.times { a << []; a = a[0] }
puts Yajl::Encoder.encode(root)
Raw
output-crash.log
Process: ruby [49834]
Path: /Users/USER/*/ruby
Identifier: ruby
Version: 0
Code Type: X86-64 (Native)
Parent Process: bash [17666]
User ID: 502
Date/Time: 2013-11-04 10:29:01.581 -0800
OS Version: Mac OS X 10.8.5 (12F45)
Report Version: 10
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGABRT)
Exception Codes: KERN_INVALID_ADDRESS at 0x00007fe481211c6c
VM Regions Near 0x7fe481211c6c:
MALLOC_TINY 00007fe084800000-00007fe084900000 [ 1024K] rw-/rwx SM=PRV
-->
Stack 00007fff57bc3000-00007fff5b3c3000 [ 56.0M] ---/rwx SM=NUL
Application Specific Information:
abort() called
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff85f05212 __pthread_kill + 10
1 libsystem_c.dylib 0x00007fff8b9e2b24 pthread_kill + 90
2 libsystem_c.dylib 0x00007fff8ba26f61 abort + 143
3 ruby 0x000000010407f3b4 rb_bug + 212
4 ruby 0x000000010415a9ce sigsegv + 190
5 libsystem_c.dylib 0x00007fff8b9cf90a _sigtramp + 26
6 yajl.bundle 0x00000001044f0464 yajl_gen_array_close + 20 (yajl_gen.c:320)
7 yajl.bundle 0x00000001044eee99 yajl_encode_part + 1129 (yajl_ext.c:160)
8 yajl.bundle 0x00000001044eef27 rb_yajl_encoder_encode + 71 (yajl_ext.c:663)
9 ruby 0x00000001041c6bd9 vm_call_cfunc_with_frame + 761
10 ruby 0x00000001041e017c vm_call_method + 828
11 ruby 0x00000001041cb5c3 vm_exec_core + 9443
12 ruby 0x00000001041d2771 vm_exec + 2737
13 ruby 0x00000001041d2c45 rb_iseq_eval_main + 357
14 ruby 0x0000000104085f52 ruby_exec_internal + 178
15 ruby 0x000000010408852c ruby_run_node + 60
16 ruby 0x000000010403dddf main + 79
17 libdyld.dylib 0x00007fff838ca7e1 start + 1
Thread 1:
0 libsystem_kernel.dylib 0x00007fff85f05f96 poll + 10
1 ruby 0x00000001041f0607 thread_timer + 503
2 libsystem_c.dylib 0x00007fff8b9e1772 _pthread_start + 327
3 libsystem_c.dylib 0x00007fff8b9ce1a1 thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x0000000000000006 rcx: 0x00007fe0808ebd08 rdx: 0x0000000000000000
rdi: 0x0000000000000f07 rsi: 0x0000000000000006 rbp: 0x00007fe0808ebd30 rsp: 0x00007fe0808ebd08
r8: 0x00007fff7370d278 r9: 0x00007fe0808ebb90 r10: 0x0000000020000000 r11: 0x0000000000000206
r12: 0x00007fe081209e10 r13: 0x00007fe0812112e0 r14: 0x00007fff7370e180 r15: 0x0000000000000008
rip: 0x00007fff85f05212 rfl: 0x0000000000000206 cr2: 0x00007fff73706ff0
Logical CPU: 0
Binary Images:
0x10403d000 - 0x10429bfef +ruby (0) <303D9F59-5946-3708-9E45-24B93B82E6E0> /Users/USER/*/ruby
0x104492000 - 0x104493ff7 +encdb.bundle (0) <A141D7BD-099C-3416-BBAB-7A3B6682C03D> /Users/USER/*/encdb.bundle
0x1044c6000 - 0x1044c7ff7 +transdb.bundle (0) <6413EA56-C534-3353-BEC0-7FB87CED9E68> /Users/USER/*/transdb.bundle
0x1044ec000 - 0x1044f5ff7 +yajl.bundle (0) <687670CF-EDB7-3CA0-A5DB-B318C87D63E3> /Users/USER/*/yajl.bundle
0x7fff63c3d000 - 0x7fff63c7193f dyld (210.2.3) <A40597AA-5529-3337-8C09-D8A014EB1578> /usr/lib/dyld
0x7fff82561000 - 0x7fff8256fff7 libsystem_network.dylib (77.10) <0D99F24E-56FE-380F-B81B-4A4C630EE587> /usr/lib/system/libsystem_network.dylib
0x7fff838c8000 - 0x7fff838cbff7 libdyld.dylib (210.2.3) <F59367C9-C110-382B-A695-9035A6DD387E> /usr/lib/system/libdyld.dylib
0x7fff84243000 - 0x7fff8428fff7 libauto.dylib (185.4) <AD5A4CE7-CB53-313C-9FAE-673303CC2D35> /usr/lib/libauto.dylib
0x7fff845c2000 - 0x7fff845f0ff7 libsystem_m.dylib (3022.6) <B434BE5C-25AB-3EBD-BAA7-5304B34E3441> /usr/lib/system/libsystem_m.dylib
0x7fff84c10000 - 0x7fff84c25ff7 libdispatch.dylib (228.23) <D26996BF-FC57-39EB-8829-F63585561E09> /usr/lib/system/libdispatch.dylib
0x7fff84c85000 - 0x7fff84c86ff7 libsystem_sandbox.dylib (220.3) <B739DA63-B675-387A-AD84-412A651143C0> /usr/lib/system/libsystem_sandbox.dylib
0x7fff8567c000 - 0x7fff85681fff libcache.dylib (57) <65187C6E-3FBF-3EB8-A1AA-389445E2984D> /usr/lib/system/libcache.dylib
0x7fff85ef3000 - 0x7fff85f0eff7 libsystem_kernel.dylib (2050.48.12) <4B7993C3-F62D-3AC1-AF92-414A0D6EED5E> /usr/lib/system/libsystem_kernel.dylib
0x7fff85f0f000 - 0x7fff8602792f libobjc.A.dylib (532.2) <90D31928-F48D-3E37-874F-220A51FD9E37> /usr/lib/libobjc.A.dylib
0x7fff86d7d000 - 0x7fff86d7eff7 libSystem.B.dylib (169.3) <365477AB-D641-389D-B8F4-A1FAE9657EEE> /usr/lib/libSystem.B.dylib
0x7fff8791d000 - 0x7fff87925ff7 libsystem_dnssd.dylib (379.38.1) <BDCB8566-0189-34C0-9634-35ABD3EFE25B> /usr/lib/system/libsystem_dnssd.dylib
0x7fff87967000 - 0x7fff87969fff libquarantine.dylib (52.1) <143B726E-DF47-37A8-90AA-F059CFD1A2E4> /usr/lib/system/libquarantine.dylib
0x7fff87c06000 - 0x7fff87c07ff7 libdnsinfo.dylib (453.19) <14202FFB-C3CA-3FCC-94B0-14611BF8692D> /usr/lib/system/libdnsinfo.dylib
0x7fff87c08000 - 0x7fff87c09fff libDiagnosticMessagesClient.dylib (8) <8548E0DC-0D2F-30B6-B045-FE8A038E76D8> /usr/lib/libDiagnosticMessagesClient.dylib
0x7fff884d3000 - 0x7fff884d5ff7 libunc.dylib (25) <92805328-CD36-34FF-9436-571AB0485072> /usr/lib/system/libunc.dylib
0x7fff88c60000 - 0x7fff88c61fff libsystem_blocks.dylib (59) <D92DCBC3-541C-37BD-AADE-ACC75A0C59C8> /usr/lib/system/libsystem_blocks.dylib
0x7fff88d1a000 - 0x7fff88d82ff7 libc++.1.dylib (65.1) <20E31B90-19B9-3C2A-A9EB-474E08F9FE05> /usr/lib/libc++.1.dylib
0x7fff897bf000 - 0x7fff897e4ff7 libc++abi.dylib (26) <D86169F3-9F31-377A-9AF3-DB17142052E4> /usr/lib/libc++abi.dylib
0x7fff89827000 - 0x7fff89849ff7 libxpc.dylib (140.43) <70BC645B-6952-3264-930C-C835010CCEF9> /usr/lib/system/libxpc.dylib
0x7fff89999000 - 0x7fff899a1fff liblaunch.dylib (442.26.2) <2F71CAF8-6524-329E-AC56-C506658B4C0C> /usr/lib/system/liblaunch.dylib
0x7fff899a2000 - 0x7fff899a3ff7 libremovefile.dylib (23.2) <6763BC8E-18B8-3AD9-8FFA-B43713A7264F> /usr/lib/system/libremovefile.dylib
0x7fff8a9d8000 - 0x7fff8aa0efff libsystem_info.dylib (406.17) <4FFCA242-7F04-365F-87A6-D4EFB89503C1> /usr/lib/system/libsystem_info.dylib
0x7fff8aff6000 - 0x7fff8b045ff7 libcorecrypto.dylib (106.2) <CE0C29A3-C420-339B-ADAA-52F4683233CC> /usr/lib/system/libcorecrypto.dylib
0x7fff8b04d000 - 0x7fff8b05bfff libcommonCrypto.dylib (60027) <BAAFE0C9-BB86-3CA7-88C0-E3CBA98DA06F> /usr/lib/system/libcommonCrypto.dylib
0x7fff8b36c000 - 0x7fff8b377fff libsystem_notify.dylib (98.5) <C49275CC-835A-3207-AFBA-8C01374927B6> /usr/lib/system/libsystem_notify.dylib
0x7fff8b450000 - 0x7fff8b457fff libcopyfile.dylib (89) <876573D0-E907-3566-A108-577EAD1B6182> /usr/lib/system/libcopyfile.dylib
0x7fff8b9cc000 - 0x7fff8b9ccfff libkeymgr.dylib (25) <CC9E3394-BE16-397F-926B-E579B60EE429> /usr/lib/system/libkeymgr.dylib
0x7fff8b9cd000 - 0x7fff8ba99ff7 libsystem_c.dylib (825.40.1) <543B05AE-CFA5-3EFE-8E58-77225411BA6B> /usr/lib/system/libsystem_c.dylib
0x7fff8bec3000 - 0x7fff8bec9fff libmacho.dylib (829) <BF332AD9-E89F-387E-92A4-6E1AB74BD4D9> /usr/lib/system/libmacho.dylib
0x7fff8c71f000 - 0x7fff8c725ff7 libunwind.dylib (35.1) <21703D36-2DAB-3D8B-8442-EAAB23C060D3> /usr/lib/system/libunwind.dylib
0x7fff8d1cd000 - 0x7fff8d1d2fff libcompiler_rt.dylib (30) <08F8731D-5961-39F1-AD00-4590321D24A9> /usr/lib/system/libcompiler_rt.dylib
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: 230145
thread_create: 2
thread_set_state: 3801
VM Region Summary:
ReadOnly portion of Libraries: Total=59.8M resident=59.1M(99%) swapped_out_or_unallocated=672K(1%)
Writable regions: Total=76.9M written=4796K(6%) resident=8220K(10%) swapped_out=0K(0%) unallocated=68.9M(90%)
REGION TYPE VIRTUAL
=========== =======
MALLOC 68.5M
MALLOC guard page 32K
STACK GUARD 4K
Stack 64.0M
VM_ALLOCATE 4K
__DATA 824K
__LINKEDIT 52.8M
__TEXT 7128K
shared memory 12K
=========== =======
TOTAL 193.1M
Raw
output.txt
$ ./test.rb 130
/Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl.rb:72: [BUG] Segmentation fault
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]
-- Crash Report log information --------------------------------------------
See Crash Report log file under the one of following:
* ~/Library/Logs/CrashReporter
* /Library/Logs/CrashReporter
* ~/Library/Logs/DiagnosticReports
* /Library/Logs/DiagnosticReports
the more detail of.
-- Control frame information -----------------------------------------------
c:0004 p:---- s:0020 e:000019 CFUNC :encode
c:0003 p:0048 s:0015 e:000014 METHOD /Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl.rb:72
c:0002 p:0058 s:0007 E:000600 EVAL ./test.rb:10 [FINISH]
c:0001 p:0000 s:0002 E:001158 TOP [FINISH]
./test.rb:10:in `<main>'
/Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl.rb:72:in `encode'
/Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl.rb:72:in `encode'
-- C level backtrace information -------------------------------------------
-- Other runtime information -----------------------------------------------
* Loaded script: ./test.rb
* Loaded features:
0 enumerator.so
1 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/enc/encdb.bundle
2 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/enc/trans/transdb.bundle
3 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/x86_64-darwin12.4.0/rbconfig.rb
4 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/compatibility.rb
5 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/defaults.rb
6 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/deprecate.rb
7 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/errors.rb
8 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/version.rb
9 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/requirement.rb
10 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/platform.rb
11 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/specification.rb
12 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/exceptions.rb
13 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/core_ext/kernel_gem.rb
14 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb
15 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems.rb
16 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/path_support.rb
17 /Users/ben/.rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/rubygems/dependency.rb
18 /Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl/yajl.bundle
19 /Users/ben/.gem/ruby/2.0.0/gems/yajl-ruby-1.1.0/lib/yajl.rb
[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html
Abort trap: 6
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