Bug #80216 [NEW]: imap_mail_compose() segfaults on multipart w/o part type

From: cmb Operating system: * PHP version: 7.3Git-2020-10-10 (Git) Package: IMAP related Bug Type: Bug Bug description:imap_mail_compose() segfaults on multipart w/o part type Description: ------------ If imap_mail_compose() is used to create a multipart MIME message without specifying explicit types for the individual parts, that leads to a segfault. Since the type for the first body defaults to TYPETEXT, I would expect the individual parts to default to TYPETEXT as well. Test script: --------------- <?php $envelope = [ 'from' => 'me@example.com', 'to' => 'you@example.com', 'subject' => 'hello', ]; $body = [[ 'type' => TYPEMULTIPART, ], [ 'contents.data' => 'yada yada', ]]; echo imap_mail_compose($envelope, $body); ?> Expected result: ---------------- From: me@example.com Subject: hello To: you@example.com MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="321-1709-1602347443=:9960" --321-1709-1602347443=:9960 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII yada yada --321-1709-1602347443=:9960-- Actual result: -------------- segfault -- Edit bug report at https://bugs.php.net/bug.php?id=80216&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=80216&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=80216&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=80216&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=80216&r=needscript Try newer version: https://bugs.php.net/fix.php?id=80216&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=80216&r=support Expected behavior: https://bugs.php.net/fix.php?id=80216&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=80216&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=80216&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=80216&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=80216&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=80216&r=dst IIS Stability: https://bugs.php.net/fix.php?id=80216&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=80216&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=80216&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=80216&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=80216&r=mysqlcfg