Bug #81472 [NEW]: Cannot support large linux major/minor device number when read /proc/self/maps

From: lin dot a dot yang at intel dot com Operating system: linux PHP version: master-Git-2021-09-24 (Git) Package: *General Issues Bug Type: Bug Bug description:Cannot support large linux major/minor device number when read /proc/self/maps Description: ------------ Latest linux kernel already uses a large number (12 bits for major device, 20 bits for minor device). https://github.com/torvalds/linux/blob/master/include/linux/kdev_t.h#L10-L11 The current code only supports previous standard (5 chars) when read /proc/self/maps file during enable opcache.huge_code_pages, which means 8 bits for major and 8 bits for minor device. https://github.com/php/php-src/blob/3cd5f2685ba87c1a5804799ef97580a5b38983b5/ext/opcache/ZendAccelerator.c#L3013 It will fail to find the text segment if device number is out of that range. It can be easily fixed by increasing the device string size to 9 chars when do fscanf. -- Edit bug report at https://bugs.php.net/bug.php?id=81472&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81472&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81472&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81472&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81472&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81472&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81472&r=support Expected behavior: https://bugs.php.net/fix.php?id=81472&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81472&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81472&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81472&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81472&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81472&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81472&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81472&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81472&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81472&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81472&r=mysqlcfg