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IDProjectCategoryView StatusDate SubmittedLast Update
0000183XdebugUncategorizedpublic2006-05-10 10:372006-05-27 21:12
ReporterTindu Assigned To 
PrioritynormalSeveritycrashReproducibilityalways
Status closedResolutionopen 
Summary0000183: property_get on $this->undefinedvariable
Description

property_get -n $this->somethingnonexistent crashes the debugger. In source code:

retval = fetch_zval_from_symbol_table(st, keyword, keyword_end - keyword, type, current_classname, cc_length TSRMLS_CC);
current_classname = fetch_classname_from_zval(retval, &cc_length TSRMLS_CC);
if (retval) {
st = fetch_ht_from_zval(retval TSRMLS_CC);
}
keyword = NULL;

As retval may be nill then fetch_class_name crashes.
If this issue is fixed then for some weird reason
res = zend_eval_string(eval_string, ret_zval, "xdebug eval" TSRMLS_CC); crashes in _xdebug_do_eval.

Additional Information

This issue was reported first in general list and was kind of fixed (string "$this-" crashed the property_get)

TagsNo tags attached.
Operating SystemWIN XP
PHP Version5.1.2

Activities

derick

2006-05-10 10:42

administrator   ~0000406

The code in CVS is:
if (keyword) {
retval = fetch_zval_from_symbol_table(st, keyword, keyword_end - keyword, type, current_classname, cc_length T if (retval) {
if (current_classname) {
efree(current_classname);
}
current_classname = fetch_classname_from_zval(retval, &cc_length TSRMLS_CC);
st = fetch_ht_from_zval(retval TSRMLS_CC);
}
keyword = NULL;
}

as you can see I only fetch the classname when retval is not NULL.

So please try latest CVS, or the windows binary from http://pecl4win.php.net/ext.php/php_xdebug.dll

derick

2006-05-27 21:12

administrator   ~0000415

This should be fixed in CVS by now.

Issue History

Date Modified Username Field Change
2006-05-10 10:37 Tindu New Issue
2006-05-10 10:42 derick Note Added: 0000406
2006-05-27 21:12 derick Status new => closed
2006-05-27 21:12 derick Note Added: 0000415
2016-07-31 12:36 derick Category Usage problems => Usage problems (Crashes)
2016-07-31 12:38 derick Category Usage problems (Crashes) => Usage problems (Wrong Results)
2020-03-12 16:35 derick Category Usage problems (Wrong Results) => Variable Display
2020-03-12 16:38 derick Category Variable Display => Uncategorized