New submission from pidpawel: I've managed to isolate some code whish results in core dump/heap corruption. I've tested it on Python 3.4 and 2.7. On 2.7 works fine, on 3.4.3 bug exists.
Example backtraces: ⌠ aqua ~ Error! ⌡ <%pidpawel> time ./deltest.py *** Error in `python3': malloc(): memory corruption: 0x0000000001ef0940 *** Then process hangs, or: ⌠ aqua ~ Error! ⌡ <%pidpawel> time ./deltest.py *** Error in `python3': double free or corruption (!prev): 0x00000000009a7370 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x7233b)[0x7f90baca633b] /lib64/libc.so.6(+0x7780e)[0x7f90bacab80e] /lib64/libc.so.6(+0x77ffb)[0x7f90bacabffb] /usr/lib64/libpython3.4.so.1.0(PyByteArray_Resize+0xd2)[0x7f90bb256c22] /usr/lib64/libpython3.4.so.1.0(+0x6cc82)[0x7f90bb257c82] /usr/lib64/libpython3.4.so.1.0(+0x6d5d0)[0x7f90bb2585d0] /usr/lib64/libpython3.4.so.1.0(PyEval_EvalFrameEx+0xcb5)[0x7f90bb2f9be5] /usr/lib64/libpython3.4.so.1.0(PyEval_EvalCodeEx+0x85e)[0x7f90bb3015ce] /usr/lib64/libpython3.4.so.1.0(PyEval_EvalCode+0x3b)[0x7f90bb30169b] /usr/lib64/libpython3.4.so.1.0(+0x1319e4)[0x7f90bb31c9e4] /usr/lib64/libpython3.4.so.1.0(PyRun_FileExFlags+0x9d)[0x7f90bb31e99d] /usr/lib64/libpython3.4.so.1.0(PyRun_SimpleFileExFlags+0x101)[0x7f90bb31f871] /usr/lib64/libpython3.4.so.1.0(Py_Main+0xd6c)[0x7f90bb334f5c] python3(main+0x169)[0x400b09] /lib64/libc.so.6(__libc_start_main+0xf0)[0x7f90bac547b0] python3[0x400bb6] ======= Memory map: ======== 00400000-00401000 r-xp 00000000 08:02 7177593 /usr/bin/python3.4 00601000-00602000 r--p 00001000 08:02 7177593 /usr/bin/python3.4 00602000-00603000 rw-p 00002000 08:02 7177593 /usr/bin/python3.4 008c0000-009d5000 rw-p 00000000 00:00 0 [heap] 7f90b94c9000-7f90b94df000 r-xp 00000000 08:02 4729096 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1 7f90b94df000-7f90b96de000 ---p 00016000 08:02 4729096 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1 7f90b96de000-7f90b96df000 r--p 00015000 08:02 4729096 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1 7f90b96df000-7f90b96e0000 rw-p 00016000 08:02 4729096 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1 7f90b96e0000-7f90b96e2000 r-xp 00000000 08:02 4255845 /usr/lib64/python3.4/lib-dynload/_random.cpython-34.so 7f90b96e2000-7f90b98e2000 ---p 00002000 08:02 4255845 /usr/lib64/python3.4/lib-dynload/_random.cpython-34.so 7f90b98e2000-7f90b98e3000 r--p 00002000 08:02 4255845 /usr/lib64/python3.4/lib-dynload/_random.cpython-34.so 7f90b98e3000-7f90b98e4000 rw-p 00003000 08:02 4255845 /usr/lib64/python3.4/lib-dynload/_random.cpython-34.so 7f90b98e4000-7f90b98f9000 r-xp 00000000 08:02 2496055 /lib64/libz.so.1.2.8 7f90b98f9000-7f90b9af8000 ---p 00015000 08:02 2496055 /lib64/libz.so.1.2.8 7f90b9af8000-7f90b9af9000 r--p 00014000 08:02 2496055 /lib64/libz.so.1.2.8 7f90b9af9000-7f90b9afa000 rw-p 00015000 08:02 2496055 /lib64/libz.so.1.2.8 7f90b9afa000-7f90b9d0d000 r-xp 00000000 08:02 4067396 /usr/lib64/libcrypto.so.1.0.0 7f90b9d0d000-7f90b9f0c000 ---p 00213000 08:02 4067396 /usr/lib64/libcrypto.so.1.0.0 7f90b9f0c000-7f90b9f2a000 r--p 00212000 08:02 4067396 /usr/lib64/libcrypto.so.1.0.0 7f90b9f2a000-7f90b9f36000 rw-p 00230000 08:02 4067396 /usr/lib64/libcrypto.so.1.0.0 7f90b9f36000-7f90b9f3a000 rw-p 00000000 00:00 0 7f90b9f70000-7f90b9f75000 r-xp 00000000 08:02 4218152 /usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so 7f90b9f75000-7f90ba174000 ---p 00005000 08:02 4218152 /usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so 7f90ba174000-7f90ba175000 r--p 00004000 08:02 4218152 /usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so 7f90ba175000-7f90ba176000 rw-p 00005000 08:02 4218152 /usr/lib64/python3.4/lib-dynload/_hashlib.cpython-34.so 7f90ba176000-7f90ba17e000 r-xp 00000000 08:02 4255848 /usr/lib64/python3.4/lib-dynload/math.cpython-34.so 7f90ba17e000-7f90ba37d000 ---p 00008000 08:02 4255848 /usr/lib64/python3.4/lib-dynload/math.cpython-34.so 7f90ba37d000-7f90ba37e000 r--p 00007000 08:02 4255848 /usr/lib64/python3.4/lib-dynload/math.cpython-34.so 7f90ba37e000-7f90ba380000 rw-p 00008000 08:02 4255848 /usr/lib64/python3.4/lib-dynload/math.cpython-34.so 7f90ba380000-7f90ba531000 rw-p 00000000 00:00 0 7f90ba531000-7f90ba62c000 r-xp 00000000 08:02 2497839 /lib64/libm-2.21.so 7f90ba62c000-7f90ba82b000 ---p 000fb000 08:02 2497839 /lib64/libm-2.21.so 7f90ba82b000-7f90ba82c000 r--p 000fa000 08:02 2497839 /lib64/libm-2.21.so 7f90ba82c000-7f90ba82d000 rw-p 000fb000 08:02 2497839 /lib64/libm-2.21.so 7f90ba82d000-7f90ba82f000 r-xp 00000000 08:02 2497844 /lib64/libutil-2.21.so 7f90ba82f000-7f90baa2e000 ---p 00002000 08:02 2497844 /lib64/libutil-2.21.so 7f90baa2e000-7f90baa2f000 r--p 00001000 08:02 2497844 /lib64/libutil-2.21.so 7f90baa2f000-7f90baa30000 rw-p 00002000 08:02 2497844 /lib64/libutil-2.21.so 7f90baa30000-7f90baa32000 r-xp 00000000 08:02 2497833 /lib64/libdl-2.21.so 7f90baa32000-7f90bac32000 ---p 00002000 08:02 2497833 /lib64/libdl-2.21.so 7f90bac32000-7f90bac33000 r--p 00002000 08:02 2497833 /lib64/libdl-2.21.so 7f90bac33000-7f90bac34000 rw-p 00003000 08:02 2497833 /lib64/libdl-2.21.so 7f90bac34000-7f90badc6000 r-xp 00000000 08:02 2497854 /lib64/libc-2.21.so 7f90badc6000-7f90bafc5000 ---p 00192000 08:02 2497854 /lib64/libc-2.21.so 7f90bafc5000-7f90bafc9000 r--p 00191000 08:02 2497854 /lib64/libc-2.21.so 7f90bafc9000-7f90bafcb000 rw-p 00195000 08:02 2497854 /lib64/libc-2.21.so 7f90bafcb000-7f90bafcf000 rw-p 00000000 00:00 0 7f90bafcf000-7f90bafe6000 r-xp 00000000 08:02 2497856 /lib64/libpthread-2.21.so 7f90bafe6000-7f90bb1e5000 ---p 00017000 08:02 2497856 /lib64/libpthread-2.21.so 7f90bb1e5000-7f90bb1e6000 r--p 00016000 08:02 2497856 /lib64/libpthread-2.21.so 7f90bb1e6000-7f90bb1e7000 rw-p 00017000 08:02 2497856 /lib64/libpthread-2.21.so 7f90bb1e7000-7f90bb1eb000 rw-p 00000000 00:00 0 7f90bb1eb000-7f90bb3fc000 r-xp 00000000 08:02 4072268 /usr/lib64/libpython3.4.so.1.0 7f90bb3fc000-7f90bb5fc000 ---p 00211000 08:02 4072268 /usr/lib64/libpython3.4.so.1.0 7f90bb5fc000-7f90bb5fe000 r--p 00211000 08:02 4072268 /usr/lib64/libpython3.4.so.1.0 7f90bb5fe000-7f90bb65a000 rw-p 00213000 08:02 4072268 /usr/lib64/libpython3.4.so.1.0 7f90bb65a000-7f90bb675000 rw-p 00000000 00:00 0 7f90bb675000-7f90bb697000 r-xp 00000000 08:02 2497855 /lib64/ld-2.21.so 7f90bb6b6000-7f90bb85a000 r--p 00000000 08:02 4590880 /usr/lib64/locale/locale-archive 7f90bb85a000-7f90bb85f000 rw-p 00000000 00:00 0 7f90bb88d000-7f90bb88e000 rw-p 00000000 00:00 0 7f90bb88e000-7f90bb895000 r--s 00000000 08:02 4343229 /usr/lib64/gconv/gconv-modules.cache 7f90bb895000-7f90bb896000 rw-p 00000000 00:00 0 7f90bb896000-7f90bb897000 r--p 00021000 08:02 2497855 /lib64/ld-2.21.so 7f90bb897000-7f90bb898000 rw-p 00022000 08:02 2497855 /lib64/ld-2.21.so 7f90bb898000-7f90bb899000 rw-p 00000000 00:00 0 7fff3a184000-7fff3a1a5000 rw-p 00000000 00:00 0 [stack] 7fff3a1c4000-7fff3a1c6000 r--p 00000000 00:00 0 [vvar] 7fff3a1c6000-7fff3a1c8000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] zsh: abort ./deltest.py ./deltest.py 0,06s user 0,01s system 97% cpu 0,075 total ---------- components: Interpreter Core files: deltest.py messages: 247774 nosy: pidpawel priority: normal severity: normal status: open title: Bytearray double free or corruption type: crash versions: Python 3.4 Added file: http://bugs.python.org/file40087/deltest.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24768> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
