PHP :: Bug #64125 :: Segfault on large strings

Bug #64125	Segfault on large strings
Submitted:	2013-02-01 14:04 UTC	Modified:	2016-03-25 11:03 UTC
From:	robs at codexsoftware dot co dot uk	Assigned:
Status:	Not a bug	Package:	PCRE related
PHP Version:	5.4.11	OS:	Debian Squeeze AMD64
Private report:	No	CVE-ID:	None

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[2013-02-01 14:04 UTC] robs at codexsoftware dot co dot uk

Description:
------------
PHP Version: PHP 5.4.11-1~dotdeb.0 (cli) (built: Jan 24 2013 15:04:58) 

match causes a segfault when processing large strings.  Increasing the stack size 
from the default of 8192 to 16384 allows me to circumvent the problem.

dpkg -l 'php*' | grep '^.i':

ii  php-pear                                5.4.7-1~dotdeb.0             PEAR - 
PHP Extension and Application Repository
ii  php5-apc                                5.4.11-1~dotdeb.0            apc 
module for php5
ii  php5-cgi                                5.4.11-1~dotdeb.0            server-
side, HTML-embedded scripting language (CGI binary)
ii  php5-cli                                5.4.11-1~dotdeb.0            command-
line interpreter for the php5 scripting language
ii  php5-common                             5.4.11-1~dotdeb.0            Common 
files for packages built from the php5 source
ii  php5-curl                               5.4.11-1~dotdeb.0            CURL 
module for php5
ii  php5-dbg                                5.4.11-1~dotdeb.0            Debug 
symbols for PHP5
ii  php5-dev                                5.4.7-1~dotdeb.0             Files for 
PHP5 module development
ii  php5-fpm                                5.4.11-1~dotdeb.0            server-
side, HTML-embedded scripting language (FPM-CGI binary)
ii  php5-gd                                 5.4.11-1~dotdeb.0            GD module 
for php5
ii  php5-mcrypt                             5.4.11-1~dotdeb.0            MCrypt 
module for php5
ii  php5-memcached                          5.4.11-1~dotdeb.0            memcached 
module for php5
ii  php5-mysql                              5.4.11-1~dotdeb.0            MySQL 
module for php5
ii  phpmyadmin                              4:3.3.7-7                    MySQL web 
administration tool

Actual result:
--------------
#0  match (eptr=0x3a6344c "rum Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 
times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 times>, "<br />\n<br 
/>\nCharger", ' ' <repeats 50 times>, "Charger 1.8A"..., ecode=0x25ba736 "\177", 
mstart=Cannot access memory at address 0x7fff90141f08
) at /usr/src/php5.4/source/php5-5.4.11/ext/pcre/pcrelib/pcre_exec.c:482
#1  0x000000000048e2ee in match (eptr=0x3a6344c "rum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1.8A"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#2  0x0000000000483569 in match (eptr=0x3a6344b "trum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1.8"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#3  0x000000000048e2ee in match (eptr=0x3a6344b "trum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1.8"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#4  0x0000000000483569 in match (eptr=0x3a6344a "ktrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1."..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#5  0x000000000048e2ee in match (eptr=0x3a6344a "ktrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1."..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#6  0x0000000000483569 in match (eptr=0x3a63449 "ektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#7  0x000000000048e2ee in match (eptr=0x3a63449 "ektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger 1"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#8  0x0000000000483569 in match (eptr=0x3a63448 "pektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger "..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#9  0x000000000048e2ee in match (eptr=0x3a63448 "pektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger "..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#10 0x0000000000483569 in match (eptr=0x3a63447 "Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#11 0x000000000048e2ee in match (eptr=0x3a63447 "Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charger"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#12 0x0000000000483569 in match (eptr=0x3a63446 " Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charge"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#13 0x000000000048e2ee in match (eptr=0x3a63446 " Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charge"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#14 0x0000000000483569 in match (eptr=0x3a63445 "  Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charg"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#15 0x000000000048e2ee in match (eptr=0x3a63445 "  Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Charg"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#16 0x0000000000483569 in match (eptr=0x3a63444 "   Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Char"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#17 0x000000000048e2ee in match (eptr=0x3a63444 "   Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Char"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#18 0x0000000000483569 in match (eptr=0x3a63443 "    Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Cha"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#19 0x000000000048e2ee in match (eptr=0x3a63443 "    Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Cha"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#20 0x0000000000483569 in match (eptr=0x3a63442 "     Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Ch"..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#21 0x000000000048e2ee in match (eptr=0x3a63442 "     Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "Ch"..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#22 0x0000000000483569 in match (eptr=0x3a63441 "      Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "C"..., ecode=0x25ba746 
"q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#23 0x000000000048e2ee in match (eptr=0x3a63441 "      Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>, "C"..., ecode=0x25ba74b 
"s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#24 0x0000000000483569 in match (eptr=0x3a63440 "       Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>..., ecode=0x25ba746 "q", 
mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#25 0x000000000048e2ee in match (eptr=0x3a63440 "       Spektrum Dx3E  <br />\n<br 
/>\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' <repeats 11 
times>, "<br />\n<br />\nCharger", ' ' <repeats 50 times>..., ecode=0x25ba74b "s", 
mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#26 0x0000000000483569 in match (eptr=0x3a6343f "        Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 49 times>..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#27 0x000000000048e2ee in match (eptr=0x3a6343f "        Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 49 times>..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#28 0x0000000000483569 in match (eptr=0x3a6343e "         Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 48 times>..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#29 0x000000000048e2ee in match (eptr=0x3a6343e "         Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 48 times>..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#30 0x0000000000483569 in match (eptr=0x3a6343d "          Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 47 times>..., 
ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#31 0x000000000048e2ee in match (eptr=0x3a6343d "          Spektrum Dx3E  <br 
/>\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo pack", ' ' 
<repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 47 times>..., 
ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, eptrb=0x0, 
    rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#32 0x0000000000483569 in match (eptr=0x3a6343c ' ' <repeats 11 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 46 
times>..., ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#33 0x000000000048e2ee in match (eptr=0x3a6343c ' ' <repeats 11 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 46 
times>..., ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#34 0x0000000000483569 in match (eptr=0x3a6343b ' ' <repeats 12 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 45 
times>..., ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#35 0x000000000048e2ee in match (eptr=0x3a6343b ' ' <repeats 12 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 45 
times>..., ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#36 0x0000000000483569 in match (eptr=0x3a6343a ' ' <repeats 13 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 44 
times>..., ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955
#37 0x000000000048e2ee in match (eptr=0x3a6343a ' ' <repeats 13 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 44 
times>..., ecode=0x25ba74b "s", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4732265) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:2017
#38 0x0000000000483569 in match (eptr=0x3a63439 ' ' <repeats 14 times>, "Spektrum 
Dx3E  <br />\n<br />\nBattery", ' ' <repeats 50 times>, "7.4v 2200mah 2S Lipo 
pack", ' ' <repeats 11 times>, "<br />\n<br />\nCharger", ' ' <repeats 43 
times>..., ecode=0x25ba746 "q", mstart=0x0, offset_top=4, md=0x7fff9093ce60, 
    eptrb=0x0, rdepth=4776686) at /usr/src/php5.4/source/php5-
5.4.11/ext/pcre/pcrelib/pcre_exec.c:955

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[2013-02-01 14:10 UTC] pajoye@php.net

-Status: Open +Status: Not a bug

[2013-02-01 14:10 UTC] pajoye@php.net

Yes, that's a well known "problem" in pcre. Not much we can do fix it and your 
workaround is actually the right solution.

[2016-03-25 09:55 UTC] martin at sutunam dot com

This "well-know" error is still a bug. It is also undocumented and should be wrapped by a check to throw a php error (and not a segfault in the system).

[2016-03-25 11:03 UTC] yohgaki@php.net

PHP does not detect if system's stack limit is reached or not.
One may request the detection if there is no request for it.

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