[issue26508] Infinite crash leading to DoS

STINNER Victor added the comment: "Then it is no bug that it crashes python?" The bug is your program creating inconsistent data. Without ctypes, you cannot create such inconsistent data. "Is a crash not a bug?" There are various ways to "crash" Python, but most of them are deliberate bugs.

[issue26508] Infinite crash leading to DoS

Brett Cannon added the comment: Victor's point is that this isn't a bug because you are manipulating the C API to make this occur. That means there is no safety guarantee and thus this is not a bug but simply a mis-use of the C API. -- nosy: +brett.cannon resolution: works for me -> no

[issue26508] Infinite crash leading to DoS

Changes by pablo sacristan : -- status: closed -> open ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://

[issue26508] Infinite crash leading to DoS

pablo sacristan added the comment: New content for crash.py: import ctypes, struct, sys, os inner = () outer = (inner,) c_outer = (ctypes.c_char * sys.getsizeof(outer)).from_address(id(outer)) inner_index = c_outer[:].find(struct.pack('P', id(inner))) c_outer[inner_index:inner_in

[issue26508] Infinite crash leading to DoS

pablo sacristan added the comment: Then it is no bug that it crashes python? You don't have to put it in a loop, but by looping it I am adding the part that makes it take more time but will keep on crashing infinitely, take away the while loop but not what it has inside and then also delete th

[issue26508] Infinite crash leading to DoS

STINNER Victor added the comment: > "construct and print a self-referencing tuple" I don't understand the use case here. In pure Python, you cannot build a self-referecing tuple!? Yeah, using the C API or by modifying bytes directly in the memory, you can do that. But if you start to use the

[issue26508] Infinite crash leading to DoS

New submission from pablo sacristan: import ctypes, struct, sys, os while 1: os.system('python /Users/pabstersac/Desktop/Python\ Files/crash.py') #Change to your full path to the file inner = () outer = (inner,) c_outer = (ctypes.c_char * sys.getsizeof(outer)).from_address(id(out