Edit report at https://bugs.php.net/bug.php?id=71876&edit=1
ID: 71876
Comment by: the_djmaze at hotmail dot com
Reported by: the_djmaze at hotmail dot com
Summary: Memory corruption htmlspecialchars(): charset `*'
not supported
Status: Open
Type: Bug
Package: Strings related
Operating System: Fedora 22
PHP Version: 7.0.4
Block user comment: N
Private report: N
New Comment:
Also seems to happen on a CentOS server with cPanel EasyApache PHP 5.6.19
[Sun May 29 17:17:00 2016] [error] PHP Warning: html_entity_decode(): charset
`@\xef\xbf\xbdf\x03' not supported, assuming utf-8 in
/wp-content/plugins/dmsguestbook/admin.php on line 3529
[Sun May 29 17:31:58 2016] [error] PHP Warning: htmlspecialchars(): charset `\x11\x01' not
supported, assuming utf-8 in /plugins/system/sef/sef.php on line 49
[Sun May 29 17:32:13 2016] [error] PHP Warning: htmlspecialchars(): charset `Filter object to
use.\n\t *\n\t * @var JFilterInput\n\t * @since 11.1\n\t */' not supported, assuming utf-8
in /libraries/cms/application/site.php on line 161
So something in the memory management is broken, i haven't figured out what yet.
Previous Comments:
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[2016-03-22 23:34:10] the_djmaze at hotmail dot com
Looking in ./ext/standard/html.c html_entity_decode() uses get_default_charset()
And also suffers from this problem.
Then looking at
static char *get_default_charset(void) {
if (PG(internal_encoding) && PG(internal_encoding)[0]) {
return PG(internal_encoding);
} else if (SG(default_charset) && SG(default_charset)[0] ) {
return SG(default_charset);
}
return NULL;
}
In php.ini internal_encoding is not set nor is default_charset.
Using ini_get() the first is empty and the latter says "UTF-8"
Digging deeper mbstring.c and iconv.c also you the char pointers.
mbstring.c only uses it once:
return _php_mb_ini_mbstring_internal_encoding_set(get_internal_encoding(),
strlen(get_internal_encoding())+1);
iconv.c uses it in a lot of places but i don't have this module installed.
Maybe later i will to test if this is also affected.
------------------------------------------------------------------------
[2016-03-22 14:39:46] the_djmaze at hotmail dot com
Few hours later, and the problem is back.
Restart of Apache solved the issue again.
------------------------------------------------------------------------
[2016-03-22 09:18:17] the_djmaze at hotmail dot com
After a restart of Apache the problem is gone and not reproducible.
I understand this makes it very hard to find.
------------------------------------------------------------------------
[2016-03-22 09:12:04] the_djmaze at hotmail dot com
Added a screenshot (with a call of phpinfo() after the code)
https://dragonflycms.org/images/php-bug-htmlspecialchars.png
Fedora 22 with remi repo
$ dnf list installed | grep php
php.x86_64 7.0.4-1.fc22.remi
php-bcmath.x86_64 7.0.4-1.fc22.remi
php-cli.x86_64 7.0.4-1.fc22.remi
php-common.x86_64 7.0.4-1.fc22.remi
php-devel.x86_64 7.0.4-1.fc22.remi
php-gd.x86_64 7.0.4-1.fc22.remi
php-gmp.x86_64 7.0.4-1.fc22.remi
php-imap.x86_64 7.0.4-1.fc22.remi
php-interbase.x86_64 7.0.4-1.fc22.remi
php-json.x86_64 7.0.4-1.fc22.remi
php-mbstring.x86_64 7.0.4-1.fc22.remi
php-mcrypt.x86_64 7.0.4-1.fc22.remi
php-mysqlnd.x86_64 7.0.4-1.fc22.remi
php-pdo.x86_64 7.0.4-1.fc22.remi
php-pear.noarch 1:1.10.1-1.fc22.remi
php-pecl-apcu.x86_64 5.1.3-1.fc22.remi.7.0
php-pecl-apcu-bc.x86_64 1.0.3-1.fc22.remi.7.0
php-pecl-gmagick.x86_64 2.0.2-0.3.RC2.fc22.remi.7.0
php-pecl-igbinary.x86_64 1.2.2-0.1.20151217git2b7c703.fc22.remi.7.0
php-pecl-mailparse.x86_64 3.0.1-1.fc22.remi.7.0
php-pecl-memcache.x86_64 3.0.9-0.2.20151130gitfdbd46b.fc22.remi.7.0
php-pecl-memcached.x86_64 3.0.0-0.1.20160217git6ace07d.fc22.remi.7.0
php-pecl-msgpack.x86_64 2.0.1-1.fc22.remi.7.0
php-pecl-uuid.x86_64 1.0.4-6.fc22.remi.7.0
php-pecl-yaml.x86_64 2.0.0-0.6.RC7.fc22.remi.7.0
php-pgsql.x86_64 7.0.4-1.fc22.remi
php-process.x86_64 7.0.4-1.fc22.remi
php-soap.x86_64 7.0.4-1.fc22.remi
php-tidy.x86_64 7.0.4-1.fc22.remi
php-xml.x86_64 7.0.4-1.fc22.remi
Zend Extension 320151012
Zend Extension Build API320151012,NTS
Zend Signal Handling disabled
Zend Memory Manager enabled
Zend Multibyte Support provided by mbstring
zend.assertions 1
zend.detect_unicode On
zend.enable_gc On
zend.multibyte Off
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[2016-03-21 23:37:40] requinix@php.net
I'm not sure why this is "memory corruption"?
https://3v4l.org/n4Qim
Which Linux? What's your configure command? Any Zend extensions installed? (Try without them.)
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