New submission from Stefan Krah <stefan-use...@bytereef.org>: After 151142c0c5b1 Valgrind finds an invalid read in symtable.c, line 907:
st->st_cur = (PySTEntryObject *)PyList_GET_ITEM(st->st_stack, size - 2); ==14301== Memcheck, a memory error detector ==14301== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==14301== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==14301== Command: ./python ==14301== ==14301== Invalid read of size 8 ==14301== at 0x4A1B30: symtable_exit_block (symtable.c:907) ==14301== by 0x49FFA3: PySymtable_Build (symtable.c:276) ==14301== by 0x473B42: PyAST_CompileEx (compile.c:295) ==14301== by 0x49E37D: run_mod (pythonrun.c:1790) ==14301== by 0x49E10E: PyRun_StringFlags (pythonrun.c:1727) ==14301== by 0x45EBFB: builtin_exec (bltinmodule.c:818) ==14301== by 0x54E2FF: PyCFunction_Call (methodobject.c:81) ==14301== by 0x471B4C: call_function (ceval.c:3957) ==14301== by 0x46D482: PyEval_EvalFrameEx (ceval.c:2663) ==14301== by 0x470060: PyEval_EvalCodeEx (ceval.c:3393) ==14301== by 0x47208A: fast_function (ceval.c:4055) ==14301== by 0x471C9F: call_function (ceval.c:3978) ==14301== Address 0x691df18 is 8 bytes before a block of size 32 alloc'd ==14301== at 0x4C27972: realloc (vg_replace_malloc.c:525) ==14301== by 0x5367FB: list_resize (listobject.c:62) ==14301== by 0x537F5B: list_ass_slice (listobject.c:643) ==14301== by 0x5381BA: PyList_SetSlice (listobject.c:677) ==14301== by 0x4A1B61: symtable_exit_block (symtable.c:909) ==14301== by 0x4A2997: symtable_visit_stmt (symtable.c:1128) ==14301== by 0x49FED2: PySymtable_Build (symtable.c:256) ==14301== by 0x473B42: PyAST_CompileEx (compile.c:295) ==14301== by 0x49E37D: run_mod (pythonrun.c:1790) ==14301== by 0x49E10E: PyRun_StringFlags (pythonrun.c:1727) ==14301== by 0x45EBFB: builtin_exec (bltinmodule.c:818) ==14301== by 0x54E2FF: PyCFunction_Call (methodobject.c:81) ---------- components: Interpreter Core messages: 139636 nosy: benjamin.peterson, skrah priority: normal severity: normal status: open title: Invalid read in symtable.c type: behavior versions: Python 3.3 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12474> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
