Vinay Sharma <vinay0410sha...@gmail.com> added the comment:
I have 8GB of ram and 128 GB of hard disk. Now, creating a shared memory segment of size 10^12 (1 terabyte) somehow succeeds. Creating a shared memory segment of 10^15 (1 petabyte), mmap (not ftruncate) throws an error stating cannot allocate memory. Creating a shared memory segment of 10^18 (1 exabyte), causes the system to crash. Now, I understand that this should be documented for a genuine user. But, if documented this can be used by malicious softwares using python to crash systems abruptly. Also, I understand that this is an issue with macos, but shouldn't python handle this so that atleast python's APIs are safe. Creating shared memory segments of size 1 exabyte are not reasonable, but if some makes a mistake then, we must throw an error instead of a crash. Also, can we set a max limit on creating shared memory segments to 1TB ? because no one would genuinily need to create a segment of that size on a single machine. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39584> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
