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[2005-08-31 19:33 UTC] php at themrbubbles dot com
Description: ------------ Using convert.quoted-printable-encode as an appended stream filter uses memory up to memory_limit and dies with an exhausted memory error. Occurs in both 5.1.0RC1 and 5.0.3, untested with 5.0.4 5.1.0RC1 configure './configure' '--with-curl' '--with-curl-dir=/usr/local/lib' '--with-gd' '--with-gd-dir=/usr/local/lib' '--with-gettext' '--with-jpeg-dir=/usr/local/lib' '--with-kerberos' '--without-xml' '--disable-xml' '--disable-libxml' '--disable-simplexml' '--with-mcrypt=/usr' '--with-mysql=/usr' '--without-pear' '--disable-pear' '--with-png-dir=/usr/local/lib' '--with-zlib' '--with-zlib-dir=/usr/local/lib' '--with-calendar=shared' '--enable-exif' '--enable-trans-sid' '--disable-wddx' '--enable-inline-optimization' '--enable-memory-limit' '--enable-mbstring' '--with-imap=' '--with-mhash' '--with-imap-ssl' '--with-openssl=/usr' '--disable-dom' '--with-ldap' '--enable-bcmath' '--enable-calendar' '--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-track-vars' '--enable-freetype' '--enable-cgi' Reproduce code: --------------- <?php // From http://us3.php.net/manual/en/filters.convert.php $fp = fopen('php://output', 'w'); stream_filter_append($fp, 'convert.quoted-printable-encode'); fwrite($fp, "This is a test.\n"); /* Outputs: =This is a test.=0A */ ?> Expected result: ---------------- =This is a test.=0A Actual result: -------------- Allowed memory size of 104857600 bytes exhausted (tried to allocate 67108864 bytes) run with php -n -d memory_limit=100M PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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I get a segfault with 5_1, HEAD seems to work. Program received signal SIGSEGV, Segmentation fault. 0x402d8fcc in memcpy () from /lib/tls/libc.so.6 (gdb) bt #0 0x402d8fcc in memcpy () from /lib/tls/libc.so.6 #1 0x081996fa in php_conv_qprint_encode_convert (inst=0x83a58a4, in_pp=0xbfffc8d4, in_left_p=0xbfffc8a8, out_pp=0xbfffc8b4, out_left_p=0xbfffc8b8) at /home/johannes/src/php/cv/PHP_5_1/ext/standard/filters.c:880 #2 0x08199e74 in strfilter_convert_append_bucket (inst=0x83aa034, stream=0x83a9ec4, filter=<value optimized out>, buckets_out=0xbfffc938, ps=0x83aa174 "This is a test.\n", buf_len=16, consumed=0xbfffc8f8, persistent=0) at /home/johannes/src/php/cv/PHP_5_1/ext/standard/filters.c:1598 #3 0x0819a223 in strfilter_convert_filter (stream=0x83a9ec4, thisfilter=0x83aa104, buckets_in=0xbfffc940, buckets_out=0xbfffc938, bytes_consumed=0xbfffc934, flags=0) at /home/johannes/src/php/cv/PHP_5_1/ext/standard/filters.c:1704 #4 0x081b5e4f in _php_stream_write_filtered (stream=0x83a9ec4, buf=<value optimized out>, count=<value optimized out>, flags=0) at /home/johannes/src/php/cv/PHP_5_1/main/streams/streams.c:951 #5 0x0815ac9b in zif_fwrite (ht=2, return_value=0x83a9d94, return_value_ptr=0x0, this_ptr=0x0, return_value_used=0) at /home/johannes/src/php/cv/PHP_5_1/ext/standard/file.c:1257 #6 0x081fd03b in zend_do_fcall_common_helper_SPEC (execute_data=0xbfffca90) at zend_vm_execute.h:184 #7 0x08247841 in execute (op_array=0x83a5804) at zend_vm_execute.h:87 #8 0x081daccf in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/johannes/src/php/cv/PHP_5_1/Zend/zend.c:1078 #9 0x081a61ae in php_execute_script (primary_file=0xbfffef40) at /home/johannes/src/php/cv/PHP_5_1/main/main.c:1675 #10 0x0824a025 in main (argc=1, argv=0xbffff014) at /home/johannes/src/php/cv/PHP_5_1/sapi/cli/php_cli.c:1039