#43410 [NEW]: SNMP cause "PHP has encountered an Access Violation" when wrong IP or CommStr

From: andy_wolk at mail dot ru Operating system: Windows 2003 Server Enterprise PHP version: 5.2.5 PHP Bug Type: SNMP related Bug description: SNMP cause "PHP has encountered an Access Violation" when wrong IP or CommStr Description: ------------ SNMP functions cause "PHP has encountered an Access Violation" when wrong IP or Community String. IIS 6 + PHP5.2.2dev isapi module. PHP_snmp.dll (ver 5.2.2.2) All next php versions has the same problem. After this error, IIS does not can operate with snmp module and needs to be restarted. Event viewer: Faulting application w3wp.exe, version 6.0.3790.3959, faulting module unknown, version 0.0.0.0, fault address 0x010cfdf4. No errors in php_error.log Reproduce code: --------------- <html> <head> <title></title> </head> <body> <?php echo "Start..."; flush(); $communitystring=''; // Your device must have this string no empty! $ip='10.200.202.97'; // Sometimes this error occured, when there is no Device in a network with this IP. for ($i=1;$i<14;$i++) { $port=100+$i; $oid='.1.3.6.1.2.1.26.2.1.1.5.${port}.1'; @snmpget($ip,$communitystring,$oid); $oid='.1.3.6.1.2.1.26.2.1.1.5.${port}.1'; @snmpwalk($ip,$communitystring,$oid); $oid='.1.3.6.1.2.1.2.2.1.7.${port}'; @snmpget($ip,$communitystring,$oid); $oid='.1.3.6.1.2.1.2.2.1.7.${port}'; @snmpwalk($ip,$communitystring,$oid); $oid='.1.3.6.1.4.1.43.10.22.1.1.3.1.$i'; @snmpget($ip,$communitystring,$oid); $oid='.1.3.6.1.4.1.43.10.22.1.1.3.1.$i'; @snmpwalk($ip,$communitystring,$oid); $oid='.1.3.6.1.4.1.43.10.22.1.1.5.1.$i'; @snmpget($ip,$communitystring,$oid); $oid='.1.3.6.1.4.1.43.10.22.1.1.5.1.$i'; @snmpwalk($ip,$communitystring,$oid); $oid='.1.3.6.1.2.1.26.2.1.1.3.${port}.1'; @snmpget($ip,$communitystring,$oid); $oid='.1.3.6.1.2.1.26.2.1.1.3.${port}.1'; @snmpwalk($ip,$communitystring,$oid); } echo "Finish"; ?> </body> </html> Expected result: ---------------- Start...Finish Actual result: -------------- Start...PHP has encountered an Access Violation at xxxxxxxx -- Edit bug report at http://bugs.php.net/?id=43410&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43410&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43410&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43410&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43410&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=43410&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=43410&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=43410&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=43410&r=needscript Try newer version: http://bugs.php.net/fix.php?id=43410&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=43410&r=support Expected behavior: http://bugs.php.net/fix.php?id=43410&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=43410&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=43410&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=43410&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43410&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=43410&r=dst IIS Stability: http://bugs.php.net/fix.php?id=43410&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=43410&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=43410&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=43410&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=43410&r=mysqlcfg