#49445 [NEW]: Segfault on connection close

From: jake dot levitt at mailtrust dot com Operating system: CentOS 5 PHP version: 5.3.0 PHP Bug Type: IMAP related Bug description: Segfault on connection close Description: ------------ If an IMAP server closes a connection without sending a BYE command, PHP segfaults on the next IMAP command run on the mailbox resource. I noticed this while testing against an exchange server, where I was selecting a folder that doesn't exist. After 10 times it disconnected me without sending a BYE command. When this happens PHP segfaulted, which doesn't allow for the script to do any error handling. Reproduce code: --------------- <?php //Try testing against an exchange server that disconnects after a //certain number of "bad" commands $flags = '/novalidate-cert'; $host = 'secure.emailsrvr.com:143'; $username = 'noteworthy2@sts.com'; $password = 'webmail'; $base_imap_string = '{' . $host . $flags . '}'; $connect_string = $base_imap_string . 'INBOX'; $mailbox = imap_open($connect_string, $username, $password, 0, 3); $connect_string = $base_imap_string . 'Does not exist'; for ($i = 0; $i < 10; $i++) { $reopen_success = imap_reopen($mailbox, $connect_string, 0, 3); } Expected result: ---------------- imap_reopen either returns false or throws a PHP error. Actual result: -------------- The script segfaults. -- Edit bug report at http://bugs.php.net/?id=49445&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49445&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49445&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49445&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49445&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49445&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49445&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49445&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49445&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49445&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49445&r=support Expected behavior: http://bugs.php.net/fix.php?id=49445&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49445&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49445&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49445&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49445&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49445&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49445&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49445&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49445&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49445&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49445&r=mysqlcfg