Bug #61186 [NEW]: valgrind complain of invalid reading

From: laruence Operating system: PHP version: 5.3.10 Package: Scripting Engine problem Bug Type: Bug Bug description:valgrind complain of invalid reading Description: ------------ while use valgrind exam PHP 5.3, it complain of invalid reading. Test script: --------------- <?php echo 2; ?> #run $USE_ZEND_ALLOC=0 valgrind php53 above.php Expected result: ---------------- no complaint Actual result: -------------- ==11759== Memcheck, a memory error detector ==11759== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al. ==11759== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info ==11759== Command: php above.php ==11759== ==11759== Invalid read of size 1 ==11759== at 0x8F4D95: lex_scan (zend_language_scanner.c:1028) ==11759== by 0x932C91: zendlex (zend_compile.c:4975) ==11759== by 0x8EA7E3: zendparse (zend_language_parser.c:2948) ==11759== by 0x8F240B: compile_file (zend_language_scanner.l:364) ==11759== by 0x6CA931: phar_compile_file (phar.c:3393) ==11759== by 0x94DD0E: zend_execute_scripts (zend.c:1228) ==11759== by 0x8B5E33: php_execute_script (main.c:2308) ==11759== by 0xA430C4: main (php_cli.c:1184) ==11759== Address 0x87ec132 is 0 bytes after a block of size 18 alloc'd ==11759== at 0x490514E: malloc (vg_replace_malloc.c:195) ==11759== by 0x91DC2D: _emalloc (zend_alloc.c:2348) ==11759== by 0x8F1E36: open_file_for_scanning (zend_language_scanner.l:288) ==11759== by 0x8F2343: compile_file (zend_language_scanner.l:352) ==11759== by 0x6CA931: phar_compile_file (phar.c:3393) ==11759== by 0x94DD0E: zend_execute_scripts (zend.c:1228) ==11759== by 0x8B5E33: php_execute_script (main.c:2308) ==11759== by 0xA430C4: main (php_cli.c:1184) ==11759== 2==11759== ==11759== HEAP SUMMARY: ==11759== in use at exit: 46,688 bytes in 1,586 blocks ==11759== total heap usage: 29,304 allocs, 27,718 frees, 4,549,300 bytes allocated ==11759== ==11759== LEAK SUMMARY: ==11759== definitely lost: 0 bytes in 0 blocks ==11759== indirectly lost: 0 bytes in 0 blocks ==11759== possibly lost: 0 bytes in 0 blocks ==11759== still reachable: 46,688 bytes in 1,586 blocks ==11759== suppressed: 0 bytes in 0 blocks ==11759== Rerun with --leak-check=full to see details of leaked memory ==11759== ==11759== For counts of detected and suppressed errors, rerun with: -v ==11759== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 4 from 4) -- Edit bug report at https://bugs.php.net/bug.php?id=61186&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=61186&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=61186&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=61186&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=61186&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61186&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=61186&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=61186&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=61186&r=needscript Try newer version: https://bugs.php.net/fix.php?id=61186&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=61186&r=support Expected behavior: https://bugs.php.net/fix.php?id=61186&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=61186&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=61186&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=61186&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=61186&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=61186&r=dst IIS Stability: https://bugs.php.net/fix.php?id=61186&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=61186&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=61186&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=61186&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=61186&r=mysqlcfg