New submission from Gregory P. Smith <g...@krypto.org>:
________________________________________________________________________________________________________ *** CID 1464693: Null pointer dereferences (REVERSE_INULL) /Modules/_zoneinfo.c: 1625 in parse_abbr() 1619 ptr++; 1620 } 1621 str_end = ptr; 1622 } 1623 1624 *abbr = PyUnicode_FromStringAndSize(str_start, str_end - str_start); >>> CID 1464693: Null pointer dereferences (REVERSE_INULL) >>> Null-checking "abbr" suggests that it may be null, but it has already >>> been dereferenced on all paths leading to the check. 1625 if (abbr == NULL) { 1626 return -1; 1627 } 1628 1629 return ptr - p; 1630 } ________________________________________________________________________________________________________ *** CID 1464687: Null pointer dereferences (FORWARD_NULL) /Modules/_ssl/debughelpers.c: 138 in _PySSL_keylog_callback() 132 * critical debug helper. 133 */ 134 if (lock == NULL) { 135 lock = PyThread_allocate_lock(); 136 if (lock == NULL) { 137 PyErr_SetString(PyExc_MemoryError, "Unable to allocate lock"); >>> CID 1464687: Null pointer dereferences (FORWARD_NULL) >>> Passing null pointer "&ssl_obj->exc_type" to "PyErr_Fetch", which >>> dereferences it. 138 PyErr_Fetch(&ssl_obj->exc_type, &ssl_obj->exc_value, 139 &ssl_obj->exc_tb); 140 return; 141 } 142 } 143 ________________________________________________________________________________________________________ *** CID 1464684: Integer handling issues (NEGATIVE_RETURNS) /Modules/clinic/posixmodule.c.h: 6813 in os_fpathconf() 6807 if (fd == -1 && PyErr_Occurred()) { 6808 goto exit; 6809 } 6810 if (!conv_path_confname(args[1], &name)) { 6811 goto exit; 6812 } >>> CID 1464684: Integer handling issues (NEGATIVE_RETURNS) >>> "fd" is passed to a parameter that cannot be negative. 6813 _return_value = os_fpathconf_impl(module, fd, name); 6814 if ((_return_value == -1) && PyErr_Occurred()) { 6815 goto exit; 6816 } 6817 return_value = PyLong_FromLong(_return_value); 6818 ---------- assignee: gregory.p.smith messages: 371946 nosy: gregory.p.smith priority: normal severity: normal stage: needs patch status: open title: minor NULL pointer and sign issues reported by Coverity type: crash versions: Python 3.10, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue41056> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com