Bug #81167 [NEW]: Segfault when loading a large file

From: kochnorman at rocketmail dot com Operating system: Debian 10 PHP version: 7.3Git-2021-06-18 (Git) Package: Compile Failure Bug Type: Bug Bug description:Segfault when loading a large file Description: ------------ Sorry first, I use PHP 7.3.19-1~deb10u1, but I could not choose this version. I encountered problems with a very larges script I have. The minimal (not-)working example I could create can be created and tested with perl -e 'sub rstr { my $len = shift; return join("", map { (a..z,A..Z,0..9)[rand 67] } 0..$len) }; print "<?php\n"; my $subname = "a"; foreach (1 .. 1000) { print qq#function test_$subname () { return "#.rstr(100).qq#"; }\n#; $subname++; }' > test.php; php -l test.php The file compiles, but then crashes with [1] 32247 segmentation fault php -l test.php I believe a 1000-line-file should not cause this error. Trying to reduce the length of the file, I even get another message: perl -e 'sub rstr { my $len = shift; return join("", map { (a..z,A..Z,0..9)[rand 67] } 0..$len) }; print "<?php\n"; my $subname = "a"; foreach (1 .. 1000) { print qq#function test_$subname () { return "#.rstr(100).qq#"; }\n#; $subname++; }' > test.php; php -l test.php No syntax errors detected in test.php zend_mm_heap corrupted I have no idea why this happens. I can work around this problem by splitting a large file into several smaller ones and then including the smaller files. Test script: --------------- Segfault: perl -e 'sub rstr { my $len = shift; return join("", map { (a..z,A..Z,0..9)[rand 67] } 0..$len) }; print "<?php\n"; my $subname = "a"; foreach (1 .. 1000) { print qq#function test_$subname () { return "#.rstr(100).qq#"; }\n#; $subname++; }' > test.php; php -l test.php zend_mm_heap corrupted: perl -e 'sub rstr { my $len = shift; return join("", map { (a..z,A..Z,0..9)[rand 67] } 0..$len) }; print "<?php\n"; my $subname = "a"; foreach (1 .. 1000) { print qq#function test_$subname () { return "#.rstr(100).qq#"; }\n#; $subname++; }' > test.php; php -l test.php -- Edit bug report at https://bugs.php.net/bug.php?id=81167&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=81167&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=81167&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=81167&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=81167&r=needscript Try newer version: https://bugs.php.net/fix.php?id=81167&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=81167&r=support Expected behavior: https://bugs.php.net/fix.php?id=81167&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=81167&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=81167&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=81167&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=81167&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=81167&r=dst IIS Stability: https://bugs.php.net/fix.php?id=81167&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=81167&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=81167&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=81167&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=81167&r=mysqlcfg