New submission from Wesley Kerfoot: Description: python 2.7.8 fails with a 'stack smashing detected' error and aborts when trying to access a C union using ctypes/libffi
Steps to reproduce: See the contents of test.c and test.py in the attached file gcc -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -O0 ./test.c -o test.o gcc -shared -o test.so test.o python2 test.py Also fails with clang instead of gcc. OS: Linux frege 3.15.8-1-ARCH #1 SMP PREEMPT Fri Aug 1 08:51:42 CEST 2014 x86_64 GNU/Linux python2 version: 2.7.8 libffi version (OS wide version): 3.1-2 gcc version: 4.9.1 clang version: 3.4.2 I have tried rebuilding python with the included version of libffi (Arch normally uses a systemwide version). Here is the PKGBUILD file Arch uses https://projects.archlinux.org/svntogit/packages.git/tree/python2/trunk/PKGBUILD?id=c319b32ada1506cf2bd48acc50649ae77a696c53 I have also reported this bug on their tracker since I am not sure if this is a bug in ctypes or libffi or both: https://bugs.archlinux.org/task/41502 ---------- components: ctypes files: crash.log messages: 225059 nosy: amaury.forgeotdarc, belopolsky, meador.inge, wjak56 priority: normal severity: normal status: open title: stack smash when using ctypes/libffi to access union type: crash versions: Python 2.7 Added file: http://bugs.python.org/file36308/crash.log _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue22171> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
