ID:               40624
 User updated by:  test_junk at hotmail dot it
 Reported By:      test_junk at hotmail dot it
-Status:           Feedback
+Status:           Open
 Bug Type:         PCRE related
 Operating System: linux 2.4 i386
 PHP Version:      4.4.5
 New Comment:

I downgraded the PCRE lib to the 6.6 release, the one shipped with php
4.4.4 and the problem appears to be resolved.
It's indeed a PCRE issue, I hope they will fix it in the future
releases.


Previous Comments:
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[2007-02-28 08:01:11] [EMAIL PROTECTED]

>Is this issue going to be fixed in the next release?
We got a workaround for it in PHP5, but we're not going to add it to
PHP4, so you have to upgrade your PHP first.
This issue (if it's really what it seems to be) is actually not PHP
problem, but a well-known PCRE issue.
Though, I wouldn't be 100% sure without a test-case.

------------------------------------------------------------------------

[2007-02-28 07:07:52] test_junk at hotmail dot it

Is this issue going to be fixed in the next release? Unfortunately it
breaks lots of things, including very popular apps. I will try to do my
best in finding the responsible php code but I'm not sure it will be
possibile.
Thanks for your interest in this matter.

------------------------------------------------------------------------

[2007-02-28 00:13:38] [EMAIL PROTECTED]

Yup, it does look like a stack overflow (which is a known issue in
PCRE), though we would appreciate a test case anyway.

------------------------------------------------------------------------

[2007-02-27 23:39:19] test_junk at hotmail dot it

I couldn't isolate the code yet. However the full backtrace is the
following (I ran the same app twice):

1st time:

#0  0x081851f2 in match (eptr=0x61737361 <Address 0x61737361 out of
bounds>,
    ecode=0x2c69746c <Address 0x2c69746c out of bounds>,
offset_top=1919250464, md=0x7474656d,
    ims=1868852837, eptrb=0x736f6320, flags=1629531331,
rdepth=1702192160)
    at /sources/php/php-4.4.6/ext/pcre/pcrelib/pcre_exec.c:2209
#1  0x00000000 in ?? () 


2nd time:

#0  0x0818257f in match (eptr=0x61737361 <Address 0x61737361 out of
bounds>,
    ecode=0x2c69746c <Address 0x2c69746c out of bounds>,
offset_top=1919250464, md=0x7474656d,
    ims=1868852837, eptrb=0x736f6320, flags=1629531331,
rdepth=1702192160)
    at /sources/php/php-4.4.6/ext/pcre/pcrelib/pcre_exec.c:1071
Cannot access memory at address 0xbf7ffff0

------------------------------------------------------------------------

[2007-02-26 14:00:30] [EMAIL PROTECTED]

also please post the whole backtrace, so that we can see what's
happening (it may be just a stack overflow..)

------------------------------------------------------------------------

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the rest of the comments, please view the bug report online at
    http://bugs.php.net/40624

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