Karthikeyan Singaravelan <tir.kar...@gmail.com> added the comment: Thanks William for the information. I can reproduce this on 3.5.6. I was able to bisect this down to #31852 that deals with similar cases and fixed with commit 690c36f2f1085145d364a89bfed5944dd2470308.
$ cpython git:(master) git checkout 690c36f2f1085145d364a89bfed5944dd2470308 HEAD is now at 690c36f2f1 [3.6] bpo-31852: Fix segfault caused by using the async soft keyword (GH-4122) $ cpython git:(690c36f2f1) git clean -xdf && ./configure --with-pydebug && make -s -j4 $ cpython git:(690c36f2f1) ./python.exe ../backups/vuln.py File "../backups/vuln.py", line 2 SyntaxError: Non-UTF-8 code starting with '\xef' in file ../backups/vuln.py on line 2, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details $ cpython git:(690c36f2f1) ./python.exe ../backups/vuln2.py File "../backups/vuln2.py", line 3 SyntaxError: Non-UTF-8 code starting with '\xdd' in file ../backups/vuln2.py on line 3, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details # Reproduce the crash ➜ cpython git:(690c36f2f1) git checkout 690c36f2f1085145d364a89bfed5944dd2470308~1 Previous HEAD position was 690c36f2f1 [3.6] bpo-31852: Fix segfault caused by using the async soft keyword (GH-4122) HEAD is now at 2702380870 bpo-31304: Update starmap_async documentation. (GH-4168) (GH-4177) ➜ cpython git:(2702380870) make ➜ cpython git:(2702380870) ./python.exe ../backups/vuln2.py Assertion failed: (!PyErr_Occurred()), function PyObject_Call, file Objects/abstract.c, line 2247. ^[[A[2] 71701 abort ./python.exe ../backups/vuln2.py ➜ cpython git:(2702380870) ./python.exe ../backups/vuln.py Assertion failed: (!PyErr_Occurred()), function PyObject_Call, file Objects/abstract.c, line 2247. [2] 71712 abort ./python.exe ../backups/vuln.py It doesn't affect master, 3.7.0 and v3.6.4+ . Since 3.5 is in security mode and was not backported to 3.5 in the linked ticket. I propose to close this ticket and reopen a separate one with Larry added to it if the fix needs an explicit backport to 3.5.6 on priority. Thanks ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue26000> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
