249205d9d6
An example that shows that _PyInstance_Lookup() does not fulfill
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its documented purpose.
2010-09-03 09:26:14 +00:00
ffd0dc1e8b
Sorry, sorry! Ignore my previous two commits. I mixed up the version
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of python with which I tried running the crashers. They don't crash
the current HEAD.
2009-09-03 19:45:27 +00:00
f866fbb303
Does not terminate: consume all memory without responding to Ctrl-C.
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I am not too sure why, but you can surely find out by gdb'ing a bit...
2009-09-03 19:42:03 +00:00
f416690490
Found the next crasher by thinking about this logic in PyPy.
2009-09-03 19:40:07 +00:00
83db7652ca
thanks to guido's bytecode verifier, this is fixed
2009-03-29 21:31:05 +00:00
d2c184605e
this has been fixed since 2.6 (I love removing these)
2009-03-29 21:22:35 +00:00
5561986da3
Ivan on IRC in #twisted reported this crasher.
2009-02-06 11:46:26 +00:00
a40d573664
#3720 : Interpreter crashes when an evil iterator removes its own next function.
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Now the slot is filled with a function that always raises.
Will not backport: extensions compiled with 2.6.x would not run on 2.6.0.
2009-01-12 23:36:55 +00:00
dcde494114
A collection of crashers, all variants of the idea
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of issue #3720 .
2008-08-29 21:21:52 +00:00
ffae306784
Sounds obvious, but I didn't even realize that you can put non-string
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keys in type dictionaries without using this locals() hack.
2008-06-12 09:50:58 +00:00
5364e2e46f
A new crasher.
2008-04-25 09:35:18 +00:00
37edeab778
Fix test67.py from issue #1303614 .
2008-01-24 17:58:05 +00:00
1d9a9eaa89
Fix two crashers.
2008-01-23 20:19:01 +00:00
bf4c7c8c0d
This got fixed for classic classes in r60057,
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and backported to 2.5.2 in 60056.
2008-01-18 23:05:40 +00:00
fa6179701c
Remove duplicate crasher.
2007-10-21 10:01:56 +00:00
1486182451
Add a crasher for the long-standing issue with closing a file
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while another thread uses it.
2007-10-21 09:14:15 +00:00
1e534b5425
Fix a crasher where Python code managed to infinitely recurse in C code without
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ever going back out to Python code in PyObject_Call(). Required introducing a
static RuntimeError instance so that normalizing an exception there is no
reliance on a recursive call that would put the exception system over the
recursion check itself.
2007-09-07 04:18:30 +00:00
337841dac7
PyDict_GetItem() returns a borrowed reference.
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This attack is against ceval.c:IMPORT_NAME, which calls an
object (__builtin__.__import__) without holding a reference to it.
2007-09-06 09:30:38 +00:00
362bb51503
PyDict_GetItem() returns a borrowed reference.
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There are probably a number of places that are open to attacks
such as the following one, in bltinmodule.c:min_max().
2007-09-05 07:51:21 +00:00
bf138333ce
Add a crasher for the thread-unsafety of file objects.
2007-08-28 18:54:44 +00:00
9790a27065
Fix for #1303614 and #1174712 :
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- __dict__ descriptor abuse for subclasses of built-in types
- subclassing from both ModuleType and another built-in types
Thanks zseil for the patch.
2007-05-02 19:23:31 +00:00
adf172339c
Modify the segfaulting example to show why r53997 is not a solution to
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it.
2007-02-28 09:25:29 +00:00
fa955697fa
Add checking for a number of metaclass error conditions.
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We add some new rules that are required for preserving internal
invariants of types.
1. If type (or a subclass of type) appears in bases, it must appear
before any non-type bases. If a non-type base (like a regular
new-style class) occurred first, it could trick type into
allocating the new class an __dict__ which must be impossible.
2. There are several checks that are made of bases when creating a
type. Those checks are now repeated when assigning to __bases__.
We also add the restriction that assignment to __bases__ may not
change the metaclass of the type.
Add new tests for these cases and for a few other oddball errors that
were no previously tested. Remove a crasher test that was fixed.
Also some internal refactoring: Extract the code to find the most
derived metaclass of a type and its bases. It is now needed in two
places. Rewrite the TypeError checks in test_descr to use doctest.
The tests now clearly show what exception they expect to see.
2007-02-27 18:29:45 +00:00
f5bee30e30
Fix crasher for when an object's __del__ creates a new weakref to itself.
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Patch only fixes new-style classes; classic classes still buggy.
Closes bug #1377858 . Already backported.
2007-01-23 23:21:22 +00:00
c839c2f226
Another crasher.
2006-09-25 15:16:26 +00:00
361b46be24
Add a "crasher" taken from the sgml bug report referenced in the comment
2006-09-11 04:32:57 +00:00
cd73a78b68
The regular expression engine in '_sre' can segfault when interpreting
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bogus bytecode. It is unclear whether this is a real bug or a "won't
fix" case like bogus_code_obj.py.
2006-08-25 12:44:28 +00:00
b62efad943
Document the crashers that will not go away soon as "won't fix",
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and explain why.
2006-07-25 18:38:39 +00:00
5a9a2a3fe1
Added another crasher, which hit me today (I was not intentionally
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writing such code, of course, but it took some gdb time to figure out
what my bug was).
2006-07-25 18:11:07 +00:00
4df7c0a55b
Document why is and is not a good way to fix the gc_inspection crasher.
2006-07-25 18:09:57 +00:00
5953baca0a
A couple of examples about how to attack the fact that _PyType_Lookup()
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returns a borrowed ref. Many of the calls are open to attack.
2006-07-06 07:58:18 +00:00
6ffe499397
SF bug #1296433 (Expat bug #1515266 ): Unchecked calls to character data
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handler would cause a segfault. This merges in Expat's lib/xmlparse.c
revisions 1.154 and 1.155, which fix this and a closely related problem
(the later does not affect Python).
Moved the crasher test to the tests for xml.parsers.expat.
2006-07-01 16:28:20 +00:00
d77ef8fa51
A couple of crashers of the "won't fix" kind.
2006-06-28 10:49:51 +00:00
ea3912b0da
If a classic class defined a __coerce__() method that just returned its two
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arguments in reverse, the interpreter would infinitely recourse trying to get a
coercion that worked. So put in a recursion check after a coercion is made and
the next call to attempt to use the coerced values.
Fixes bug #992017 and closes crashers/coerce.py .
2006-06-13 21:46:41 +00:00
22565aac3b
An object with __call__ as an attribute, when called, will have that attribute checked for __call__ itself, and will continue to look until it finds an object without the attribute. This can lead to an infinite recursion.
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Closes bug #532646 , again. Will be backported.
2006-06-09 22:31:23 +00:00
35f6d36951
[ 1497053 ] Let dicts propagate the exceptions in user __eq__().
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[ 1456209 ] dictresize() vulnerability ( <- backport candidate ).
2006-06-01 13:19:12 +00:00
7e97ee6ac8
A dictresize() attack. If oldtable == mp->ma_smalltable then pure
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Python code can mangle with mp->ma_smalltable while it is being walked
over.
2006-04-18 14:00:01 +00:00
15b1f146bc
add a very old crasher from the 2.1 -> 2.2 round of dictionary fixes.
2006-04-18 13:52:32 +00:00
38a76a1017
Copy note from leakers README here too. We want to keep all test cases.
2006-04-14 06:35:46 +00:00
1a57296450
Set svn:eol-style to native.
2006-03-01 06:19:04 +00:00
b4b5a7601b
collected my segfaulting Python examples from the SF trackers
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(is the purpose of the crashers directory to scare people? :-)
2006-01-14 10:58:30 +00:00
a28ad77844
Whitespace normalization.
2006-01-13 03:05:25 +00:00
ae1df41127
add another crash reported by Thomas Wouters
2006-01-11 07:21:19 +00:00
8cc4ef561c
As I threatened on python-dev, add a directory which contains all known
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bugs which cause the interpreter to crash. I'm sure we can find a few
more. Many missing bugs deal with variations on unchecked infinite recursion
(like coerce.py).
2006-01-10 07:49:41 +00:00
Armin Rigo
Benjamin Peterson
Amaury Forgeot d'Arc
Guido van Rossum
Georg Brandl
Brett Cannon
Jeremy Hylton
Neal Norwitz
Fred Drake
Michael W. Hudson
Tim Peters