Bug #79756 [NEW]: finfo_file crash (FILEINFO_MIME)

From: joris at tactics dot be Operating system: Windows PHP version: 7.3.19 Package: Filesystem function related Bug Type: Bug Bug description:finfo_file crash (FILEINFO_MIME) Description: ------------ When trying to detect the mime type of a specific file, the php-cgi.exe process crashes. It only happens with one specific .xls file I have. This .xls file does open in Excel without issues. Test script: --------------- // $filename is path to a specific file that causes the crash. // I can't seem to upload this file here anywhere :( $finfo = finfo_open(FILEINFO_MIME); $mime = finfo_file($finfo, $filename); // CRASH finfo_close($finfo); echo $mime; Expected result: ---------------- application/vnd.ms-excel; charset=binary -- Edit bug report at https://bugs.php.net/bug.php?id=79756&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79756&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79756&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79756&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79756&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79756&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79756&r=support Expected behavior: https://bugs.php.net/fix.php?id=79756&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79756&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79756&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79756&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79756&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79756&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79756&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79756&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79756&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79756&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79756&r=mysqlcfg