Bug #76510 [Opn]: file_exists() stopped working for phar:// in PHP 7.3

Edit report at https://bugs.php.net/bug.php?id=76510&edit=1 ID: 76510 Updated by: cmb@php.net Reported by: sebastian@php.net Summary: file_exists() stopped working for phar:// in PHP 7.3 Status: Open Type: Bug Package: PHAR related Operating System: Linux PHP Version: 7.3Git-2018-06-21 (Git) Block user comment: N Private report: N New Comment: Please run that again with valgrind --track-origins=yes. Previous Comments: ------------------------------------------------------------------------ [2018-08-06 15:16:17] sebastian@php.net As requested by Nikita on the mailinglist, here is the Valgrind logfile: ==21544== Memcheck, a memory error detector ==21544== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==21544== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==21544== Command: /usr/local/php-7.3/bin/php ../../../phpunit ==21544== Parent PID: 19592 ==21544== ==21544== Conditional jump or move depends on uninitialised value(s) ==21544== at 0x4072122: ??? ==21544== by 0x1BEB2267: ??? ==21544== by 0x1BEB2267: ??? ==21544== by 0x1BEB228C: ??? ==21544== by 0xEB577AF: ??? ==21544== by 0x1BEB2267: ??? ==21544== ==21544== Conditional jump or move depends on uninitialised value(s) ==21544== at 0x4072122: ??? ==21544== by 0x1BEB6637: ??? ==21544== by 0x1BEB6637: ??? ==21544== by 0x1BEB665C: ??? ==21544== by 0xEB577AF: ??? ==21544== by 0x1BEB6637: ??? ==21544== ==21544== Conditional jump or move depends on uninitialised value(s) ==21544== at 0x4072122: ??? ==21544== by 0x1BF754E7: ??? ==21544== by 0x1BF754E7: ??? ==21544== by 0x1BF754F3: ??? ==21544== by 0xEB577AF: ??? ==21544== by 0x1BF754E7: ??? ==21544== ==21544== Conditional jump or move depends on uninitialised value(s) ==21544== at 0x4072122: ??? ==21544== by 0x1BF77167: ??? ==21544== by 0x1BF77167: ??? ==21544== by 0x1BF77173: ??? ==21544== by 0xEB577AF: ??? ==21544== by 0x1BF77167: ??? ==21544== ==21544== Invalid read of size 1 ==21544== at 0x848DF7: destroy_zend_class (in /usr/local/php-7.3/bin/php) ==21544== by 0x8459F3: shutdown_executor (in /usr/local/php-7.3/bin/php) ==21544== by 0x853677: zend_deactivate (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F761A: php_request_shutdown (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D77D5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== by 0x47AB55: main (in /usr/local/php-7.3/bin/php) ==21544== Address 0x1ba482f4 is 4 bytes inside a block of size 56 free'd ==21544== at 0x4C2FDAC: free (vg_replace_malloc.c:530) ==21544== by 0x848E05: destroy_zend_class (in /usr/local/php-7.3/bin/php) ==21544== by 0x8459F3: shutdown_executor (in /usr/local/php-7.3/bin/php) ==21544== by 0x853677: zend_deactivate (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F761A: php_request_shutdown (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D77D5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== by 0x47AB55: main (in /usr/local/php-7.3/bin/php) ==21544== Block was alloc'd at ==21544== at 0x4C2EBAB: malloc (vg_replace_malloc.c:299) ==21544== by 0x82D278: __zend_malloc (in /usr/local/php-7.3/bin/php) ==21544== by 0x822E2A: lex_scan (in /usr/local/php-7.3/bin/php) ==21544== by 0x836668: zendlex (in /usr/local/php-7.3/bin/php) ==21544== by 0x81C3DD: zendparse (in /usr/local/php-7.3/bin/php) ==21544== by 0x81E7C2: zend_compile (in /usr/local/php-7.3/bin/php) ==21544== by 0x81FEE1: compile_file (in /usr/local/php-7.3/bin/php) ==21544== by 0x6E85F1: phar_compile_file (in /usr/local/php-7.3/bin/php) ==21544== by 0x81FF68: compile_filename (in /usr/local/php-7.3/bin/php) ==21544== by 0x893864: zend_include_or_eval (in /usr/local/php-7.3/bin/php) ==21544== by 0x8C8AA9: ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CD99E: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8466F5: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x74B54D: zif_spl_autoload_call (in /usr/local/php-7.3/bin/php) ==21544== by 0x8465B1: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x846A57: zend_lookup_class_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x847397: zend_fetch_class_by_name (in /usr/local/php-7.3/bin/php) ==21544== by 0x89BA8A: ZEND_DECLARE_INHERITED_CLASS_SPEC_CONST_CONST_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CF616: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8466F5: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x74B54D: zif_spl_autoload_call (in /usr/local/php-7.3/bin/php) ==21544== by 0x8465B1: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x846A57: zend_lookup_class_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x847397: zend_fetch_class_by_name (in /usr/local/php-7.3/bin/php) ==21544== by 0x89BA8A: ZEND_DECLARE_INHERITED_CLASS_SPEC_CONST_CONST_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CF616: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D5F41: zend_execute (in /usr/local/php-7.3/bin/php) ==21544== by 0x853963: zend_execute_scripts (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F89FF: php_execute_script (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D83A5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== ==21544== Invalid read of size 4 ==21544== at 0x848DFD: destroy_zend_class (in /usr/local/php-7.3/bin/php) ==21544== by 0x8459F3: shutdown_executor (in /usr/local/php-7.3/bin/php) ==21544== by 0x853677: zend_deactivate (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F761A: php_request_shutdown (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D77D5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== by 0x47AB55: main (in /usr/local/php-7.3/bin/php) ==21544== Address 0x1ba482f0 is 0 bytes inside a block of size 56 free'd ==21544== at 0x4C2FDAC: free (vg_replace_malloc.c:530) ==21544== by 0x848E05: destroy_zend_class (in /usr/local/php-7.3/bin/php) ==21544== by 0x8459F3: shutdown_executor (in /usr/local/php-7.3/bin/php) ==21544== by 0x853677: zend_deactivate (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F761A: php_request_shutdown (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D77D5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== by 0x47AB55: main (in /usr/local/php-7.3/bin/php) ==21544== Block was alloc'd at ==21544== at 0x4C2EBAB: malloc (vg_replace_malloc.c:299) ==21544== by 0x82D278: __zend_malloc (in /usr/local/php-7.3/bin/php) ==21544== by 0x822E2A: lex_scan (in /usr/local/php-7.3/bin/php) ==21544== by 0x836668: zendlex (in /usr/local/php-7.3/bin/php) ==21544== by 0x81C3DD: zendparse (in /usr/local/php-7.3/bin/php) ==21544== by 0x81E7C2: zend_compile (in /usr/local/php-7.3/bin/php) ==21544== by 0x81FEE1: compile_file (in /usr/local/php-7.3/bin/php) ==21544== by 0x6E85F1: phar_compile_file (in /usr/local/php-7.3/bin/php) ==21544== by 0x81FF68: compile_filename (in /usr/local/php-7.3/bin/php) ==21544== by 0x893864: zend_include_or_eval (in /usr/local/php-7.3/bin/php) ==21544== by 0x8C8AA9: ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CD99E: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8466F5: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x74B54D: zif_spl_autoload_call (in /usr/local/php-7.3/bin/php) ==21544== by 0x8465B1: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x846A57: zend_lookup_class_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x847397: zend_fetch_class_by_name (in /usr/local/php-7.3/bin/php) ==21544== by 0x89BA8A: ZEND_DECLARE_INHERITED_CLASS_SPEC_CONST_CONST_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CF616: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8466F5: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x74B54D: zif_spl_autoload_call (in /usr/local/php-7.3/bin/php) ==21544== by 0x8465B1: zend_call_function (in /usr/local/php-7.3/bin/php) ==21544== by 0x846A57: zend_lookup_class_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x847397: zend_fetch_class_by_name (in /usr/local/php-7.3/bin/php) ==21544== by 0x89BA8A: ZEND_DECLARE_INHERITED_CLASS_SPEC_CONST_CONST_HANDLER (in /usr/local/php-7.3/bin/php) ==21544== by 0x8CF616: execute_ex (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D5F41: zend_execute (in /usr/local/php-7.3/bin/php) ==21544== by 0x853963: zend_execute_scripts (in /usr/local/php-7.3/bin/php) ==21544== by 0x7F89FF: php_execute_script (in /usr/local/php-7.3/bin/php) ==21544== by 0x8D83A5: do_cli (in /usr/local/php-7.3/bin/php) ==21544== ==21544== ==21544== HEAP SUMMARY: ==21544== in use at exit: 9,484 bytes in 70 blocks ==21544== total heap usage: 57,160 allocs, 57,090 frees, 10,884,126 bytes allocated ==21544== ==21544== LEAK SUMMARY: ==21544== definitely lost: 2,648 bytes in 21 blocks ==21544== indirectly lost: 5,142 bytes in 26 blocks ==21544== possibly lost: 640 bytes in 1 blocks ==21544== still reachable: 1,054 bytes in 22 blocks ==21544== suppressed: 0 bytes in 0 blocks ==21544== Rerun with --leak-check=full to see details of leaked memory ==21544== ==21544== For counts of detected and suppressed errors, rerun with: -v ==21544== Use --track-origins=yes to see where uninitialised values come from ==21544== ERROR SUMMARY: 10 errors from 6 contexts (suppressed: 0 from 0) Not sure how useful this is, though, as I cannot compile PHP with --enable-debug as that overrides "-O2" with "-O0". ------------------------------------------------------------------------ [2018-08-05 14:11:33] cmb@php.net > What I find weird is that you were able to reproduce the issue > initially but now you no longer can while I am still seeing it. Initially, I've built PHP “incrementally”, i.e. I started with a minimal build, and did config.nice … && make to add the required extensions. That let the test fail. If I build with exactly the same configure options in one go, the test succeeds. gcc (Debian 6.3.0-18) 6.3.0 20170516 ------------------------------------------------------------------------ [2018-08-04 06:37:06] sebastian@php.net I can confirm that compiling PHP with -fno-optimize-strlen solves the problem for me. ------------------------------------------------------------------------ [2018-08-03 22:45:10] bugs dot php dot net at majkl578 dot cz Bisect log (bad: php-7.3.0beta1, good: php-7.2.9RC1) if anyone needs to replay: # bad: [9160e881a6af72691ad034978e5078a8042ee9b6] Update versions for PHP 7.3.0beta1 # good: [09aa799e6448ed2a12b9371f8cdf31683b0c46aa] Update versions for PHP 7.2.9RC1 git bisect start 'php-7.3.0beta1' 'php-7.2.9RC1' # good: [095a30e11b14dde32aabc002d627301bcbe7a927] Update NEWS [ci skip] git bisect good 095a30e11b14dde32aabc002d627301bcbe7a927 # good: [095a30e11b14dde32aabc002d627301bcbe7a927] Update NEWS [ci skip] git bisect good 095a30e11b14dde32aabc002d627301bcbe7a927 # bad: [6e94f943c1943984b55de159404d480f82357f7c] Avoid abs() type mismatch warnings git bisect bad 6e94f943c1943984b55de159404d480f82357f7c # bad: [bfe19cb355a82c14e03504f4499f267a51155a85] Merge branch 'PHP-7.2' git bisect bad bfe19cb355a82c14e03504f4499f267a51155a85 # bad: [a06ba4b9d6621bd4bb7c387cf1439c7a356c8d72] Merge branch 'PHP-7.2' git bisect bad a06ba4b9d6621bd4bb7c387cf1439c7a356c8d72 # good: [e6bfbb6c9d7524f62366c664ceb5056be7c55195] Merge branch 'PHP-7.2' git bisect good e6bfbb6c9d7524f62366c664ceb5056be7c55195 # bad: [28fdc1f1c35392d1bbe16d4f8c76a2d661d70b0b] Merge branch 'PHP-7.2' git bisect bad 28fdc1f1c35392d1bbe16d4f8c76a2d661d70b0b # bad: [17b39f1216bf213838c7975d266808d4bc7ffb4c] Merge branch 'PHP-7.2' git bisect bad 17b39f1216bf213838c7975d266808d4bc7ffb4c # good: [902188e5e3889886d609696a7b5ed8ac12e071e2] Merge branch 'PHP-7.2' git bisect good 902188e5e3889886d609696a7b5ed8ac12e071e2 # good: [b1cf87a4e6ef58987107709f89470168fd928452] Merge branch 'PHP-7.2' git bisect good b1cf87a4e6ef58987107709f89470168fd928452 # good: [e20fbd43bad65d10af1e0d648f7bfa0c40baa893] Separate mbfl filters into three categories git bisect good e20fbd43bad65d10af1e0d648f7bfa0c40baa893 # good: [fea7957d0836d8389c4b5063138277d7a21156b3] Optimize mb_chr() git bisect good fea7957d0836d8389c4b5063138277d7a21156b3 # bad: [513b0093c2b480bb752fb354012f42c446769486] Refactor php_url struct to save memory dup in common cases git bisect bad 513b0093c2b480bb752fb354012f42c446769486 # good: [6546c516dd61f7f9efecbd9144c02218614d4c51] Optimized ucfirst(Avoid duping string if possible) git bisect good 6546c516dd61f7f9efecbd9144c02218614d4c51 # first bad commit: [513b0093c2b480bb752fb354012f42c446769486] Refactor php_url struct to save memory dup in common cases ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=76510 -- Edit this bug report at https://bugs.php.net/bug.php?id=76510&edit=1