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phar buildFromIterator breaks with missing base directory #20882
Description
Description
The following code:
<?php
class MyIterator extends RecursiveDirectoryIterator {
}
$workdir = __DIR__.'/getMTime_errors';
for ($i = 0; $i < 4; $i++) {
try {
$phar = new \Phar($workdir . "/test$i.phar");
$phar->buildFromIterator(
new RecursiveIteratorIterator(
new MyIterator($workdir . '/content', FilesystemIterator::SKIP_DOTS)
),
$fusion
);
} catch (Throwable $e) {
}
}Resulted in this output:
/home/phpfuzz/WorkSpace/flowfusion/php-src/ext/phar/phar_object.c:1387:33: runtime error: member access within null pointer of type 'zend_string' (aka 'struct _zend_string')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/phpfuzz/WorkSpace/flowfusion/php-src/ext/phar/phar_object.c:1387:33 in
To reproduce:
./php-src/sapi/cli/php -d "phar.readonly=0" ./test.php
Commit:
ebef772cfd9116aee0ca801418387cabb6719dbd
Configurations:
CC="clang-12" CXX="clang++-12" CFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" CXXFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" ./configure --enable-debug --enable-address-sanitizer --enable-undefined-sanitizer --enable-re2c-cgoto --enable-fpm --enable-litespeed --enable-phpdbg-debug --enable-zts --enable-bcmath --enable-calendar --enable-dba --enable-dl-test --enable-exif --enable-ftp --enable-gd --enable-gd-jis-conv --enable-mbstring --enable-pcntl --enable-shmop --enable-soap --enable-sockets --enable-sysvmsg --enable-zend-test --with-zlib --with-bz2 --with-curl --with-enchant --with-gettext --with-gmp --with-mhash --with-ldap --with-libedit --with-readline --with-snmp --with-sodium --with-xsl --with-zip --with-mysqli --with-pdo-mysql --with-pdo-pgsql --with-pgsql --with-sqlite3 --with-pdo-sqlite --with-webp --with-jpeg --with-freetype --enable-sigchild --with-readline --with-pcre-jit --with-iconv
Operating System:
Ubuntu 20.04 Host, Docker 0599jiangyc/flowfusion:latest
This report is automatically generated by FlowFusion
PHP Version
nightly
Operating System
No response
Activity
devnexen commentedon Jan 9, 2026
can t reproduce but is probably true.
[-]SEGV ext/phar/phar_object.c[/-][+]phar buildFromIterator breaks with missing base directory[/+]Fix phpGH-20882: phar buildFromIterator breaks with missing base dire…
Merge branch 'PHP-8.4' into PHP-8.5
Merge branch 'PHP-8.5'
Fix GH-20882: phar buildFromIterator breaks with missing base directory