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Trying to decode a string containing thousands of repetitions of [{"":[{"":[{"": crashes Python #2

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AdamWill opened this issue Feb 10, 2017 · 2 comments
Closed

Trying to decode a string containing thousands of repetitions of [{"":[{"":[{"": crashes Python #2

AdamWill opened this issue Feb 10, 2017 · 2 comments

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@AdamWill
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Like #1, this is another of the JSONTestSuite tests. The test file is this one, it just contains several thousand repetitions of [{"":, like this:

[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":

etc etc etc. Trying to parse it crashes Python, with another gigantic backtrace. It starts like this:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7a7f46a in PyObject_Malloc (nbytes=280) at /usr/src/debug/Python-2.7.13/Objects/obmalloc.c:787
787	{
#0  0x00007ffff7a7f46a in PyObject_Malloc (nbytes=280) at /usr/src/debug/Python-2.7.13/Objects/obmalloc.c:787
        bp = <optimized out>
        pool = <optimized out>
        next = <optimized out>
        size = <optimized out>
#1  0x00007ffff7b0cb1e in _PyObject_GC_Malloc (basicsize=<optimized out>) at /usr/src/debug/Python-2.7.13/Modules/gcmodule.c:1573
        op = <optimized out>
        g = <optimized out>
        basicsize = <optimized out>
#2  0x00007ffff7b0cc1d in _PyObject_GC_New (tp=tp@entry=0x7ffff7d8d900 <PyDict_Type>) at /usr/src/debug/Python-2.7.13/Modules/gcmodule.c:1595
        op = <unknown at remote 0x-644d1cf353dc7d00>
#3  0x00007ffff7a77aa4 in PyDict_New () at /usr/src/debug/Python-2.7.13/Objects/dictobject.c:286
        mp = <optimized out>
#4  0x00007ffff68e54a6 in decode_object (jsondata=0x7fffffffda90) at cjson.c:421
        key = <optimized out>
        value = <optimized out>
        c = <optimized out>
        object = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = <optimized out>
#5  decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#6  0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b1f "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#7  decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#8  0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b1b "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#9  decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#10 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b1a "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#11 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#12 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b16 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#13 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#14 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b15 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#15 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#16 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b11 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#17 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#18 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b10 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#19 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#20 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b0c "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#21 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#22 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b0b "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#23 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#24 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b07 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#25 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#26 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b06 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#27 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#28 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b02 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#29 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#30 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2b01 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#31 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#32 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2afd "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#33 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#34 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2afc "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#35 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#36 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2af8 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#37 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#38 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2af7 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#39 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#40 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68d2af3 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#41 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.

and ends like this:

        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a504e "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149677 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149678 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a504d "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149679 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149680 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5049 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149681 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149682 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5048 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149683 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149684 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5044 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149685 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149686 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5043 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149687 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149688 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a503f "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149689 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149690 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a503e "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149691 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149692 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a503a "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149693 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149694 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5039 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149695 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149696 0x00007ffff68e55cc in decode_object (jsondata=0x7fffffffda90) at cjson.c:477
        key = ''
        value = <optimized out>
        c = <optimized out>
        object = {}
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5035 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["...
#149697 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:529
No locals.
#149698 0x00007ffff68e5748 in decode_array (jsondata=0x7fffffffda90) at cjson.c:369
        c = <optimized out>
        object = []
        item = <optimized out>
        next_state = <optimized out>
        result = <optimized out>
        start = 0x7ffff68a5034 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"...
#149699 decode_json (jsondata=jsondata@entry=0x7fffffffda90) at cjson.c:532
No locals.
#149700 0x00007ffff68e5e02 in JSON_decode (self=<optimized out>, args=<optimized out>, kwargs=<optimized out>) at cjson.c:1141
        kwlist = {0x7ffff68e60a0 "json", 0x7ffff68e60e7 "all_unicode", 0x0}
        all_unicode = 0
        object = <optimized out>
        string = '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":'
        str = '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":'
        jsondata = {str = 0x7ffff68a5034 "[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":"..., end = 0x7ffff68e20c5 "", ptr = 0x7ffff68d2b20 "{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":[{\"\":["..., all_unicode = 0}
#149701 0x00007ffff7ada127 in call_function (oparg=<optimized out>, pp_stack=0x7fffffffdb90) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4429
        flags = <optimized out>
        tstate = 0x5555557560a0
        func = <optimized out>
        w = <optimized out>
        na = 1
        nk = 0
        n = 1
        pfunc = 0x7ffff7eb8c78
        x = <optimized out>
#149702 PyEval_EvalFrameEx (f=f@entry=Frame 0x7ffff7eb8b00, for file test.py, line 4, in <module> (), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3063
        sp = 0x7ffff7eb8c80
        opcode_targets = {0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7adbd3a <PyEval_EvalFrameEx+31658>, 0x7ffff7adbd3f <PyEval_EvalFrameEx+31663>, 0x7ffff7adbd44 <PyEval_EvalFrameEx+31668>, 0x7ffff7adbd4e <PyEval_EvalFrameEx+31678>, 0x7ffff7adbd49 <PyEval_EvalFrameEx+31673>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7adbcdf <PyEval_EvalFrameEx+31567>, 0x7ffff7adbd72 <PyEval_EvalFrameEx+31714>, 0x7ffff7adbd77 <PyEval_EvalFrameEx+31719>, 0x7ffff7adbd7c <PyEval_EvalFrameEx+31724>, 0x7ffff7adbd81 <PyEval_EvalFrameEx+31729>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7adbd86 <PyEval_EvalFrameEx+31734>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7ad4e71 <PyEval_EvalFrameEx+3297>, 0x7ffff7adbd8b <PyEval_EvalFrameEx+31739>, 0x7ffff7adbd90 <PyEval_EvalFrameEx+31744>, 0x7ffff7adbd95 <PyEval_EvalFrameEx+31749>, 0x7ffff7adbda4 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        stack_pointer = <optimized out>
        next_instr = <optimized out>
        opcode = 131
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x7ffff7eb8c78
        freevars = <optimized out>
        retval = <optimized out>
        tstate = <optimized out>
        co = <optimized out>
        instr_ub = <optimized out>
        instr_lb = <optimized out>
        instr_prev = <optimized out>
        first_instr = <optimized out>
        names = <optimized out>
        consts = <optimized out>
#149703 0x00007ffff7addabc in PyEval_EvalCodeEx (co=co@entry=0x7ffff7e6c2b0, globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3661
        f = Frame 0x7ffff7eb8b00, for file test.py, line 4, in <module> ()
        retval = 0x0
        fastlocals = 0x7ffff7eb8c78
        freevars = 0x7ffff7eb8c78
        tstate = 0x5555557560a0
        x = <optimized out>
        u = <optimized out>
#149704 0x00007ffff7addba9 in PyEval_EvalCode (co=co@entry=0x7ffff7e6c2b0, globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated)) at /usr/src/debug/Python-2.7.13/Python/ceval.c:691
No locals.
#149705 0x00007ffff7af703f in run_mod (mod=<optimized out>, filename=filename@entry=0x7fffffffe33a "test.py", globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), flags=flags@entry=0x7fffffffde20, arena=arena@entry=0x5555557c33b0) at /usr/src/debug/Python-2.7.13/Python/pythonrun.c:1384
        co = 0x7ffff7e6c2b0
        v = <optimized out>
#149706 0x00007ffff7af8272 in PyRun_FileExFlags (fp=fp@entry=0x5555557d6220, filename=filename@entry=0x7fffffffe33a "test.py", start=start@entry=257, globals=globals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), locals=locals@entry={'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated), closeit=closeit@entry=1, flags=0x7fffffffde20) at /usr/src/debug/Python-2.7.13/Python/pythonrun.c:1370
        ret = <optimized out>
        mod = <optimized out>
        arena = 0x5555557c33b0
#149707 0x00007ffff7af9485 in PyRun_SimpleFileExFlags (fp=fp@entry=0x5555557d6220, filename=0x7fffffffe33a "test.py", closeit=closeit@entry=1, flags=flags@entry=0x7fffffffde20) at /usr/src/debug/Python-2.7.13/Python/pythonrun.c:956
        m = <module at remote 0x7ffff7f46c58>
        d = {'__builtins__': <module at remote 0x7ffff7f85b08>, '__file__': 'test.py', '__package__': None, 'cjson': <module at remote 0x7ffff7e7ee50>, 'fh': <file at remote 0x7ffff7ec26f0>, '__name__': '__main__', 'data': '[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{"":[{...(truncated)
        v = <optimized out>
        ext = <optimized out>
        set_file_name = 1
        len = <optimized out>
        ret = -1
#149708 0x00007ffff7af9993 in PyRun_AnyFileExFlags (fp=fp@entry=0x5555557d6220, filename=<optimized out>, closeit=closeit@entry=1, flags=flags@entry=0x7fffffffde20) at /usr/src/debug/Python-2.7.13/Python/pythonrun.c:760
No locals.
#149709 0x00007ffff7b0b450 in Py_Main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/Python-2.7.13/Modules/main.c:640
        c = <optimized out>
        sts = <optimized out>
        command = 0x0
        filename = 0x7fffffffe33a "test.py"
        module = 0x0
        fp = 0x5555557d6220
        p = <optimized out>
        unbuffered = <optimized out>
        skipfirstline = 0
        stdin_is_interactive = 1
        help = <optimized out>
        version = <optimized out>
        saw_unbuffered_flag = <optimized out>
        cf = {cf_flags = 0}
#149710 0x00007ffff6d0d671 in __libc_start_main (main=0x555555554780 <main>, argc=2, argv=0x7fffffffdfe8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdfd8) at ../csu/libc-start.c:295
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7253775145021328599, 93824992233360, 140737488347104, 0, 0, 3602813021458386135, 3602828045559254231}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fffffffe000, 0x7ffff7ffe330}, data = {prev = 0x0, cleanup = 0x0, canceltype = -8192}}}
        not_first_call = <optimized out>
#149711 0x00005555555547ba in _start ()
No symbol table info available.
@AdamWill
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Note: this may be considered a security issue, but I didn't think delaying disclosure made any sense, since the JSONTestSuite tests are public and have been for months, and were discussed in the press more than once.

@AdamWill AdamWill mentioned this issue Feb 10, 2017
Merged
AdamWill added a commit to AdamWill/python-cjson that referenced this issue Feb 10, 2017
@AdamWill
Implement recursion depth limit (AGProjects#1, AGProjects#2)
cb6aa85 
This implements a maximum recursion depth when parsing arrays
and objects, to prevent the potential to crash the parser by
asking it to parse something with a huge amount of recursion.

The issue was discovered using Nicolas Seriot's JSONTestSuite:
https://github.com/nst/JSONTestSuite

The fix is directly inspired by the similar protection in
ultrajson / ujson:
https://github.com/esnme/ultrajson

Signed-off-by: Adam Williamson <[email protected]>
@AdamWill
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This is really the same as #1 - it's about not protecting against excessive recursion.

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