Edit report at https://bugs.php.net/bug.php?id=64094&edit=1
ID: 64094 User updated by: george at polarismail dot com Reported by: george at polarismail dot com Summary: preg_match crashes php Status: Not a bug Type: Bug Package: PCRE related Operating System: FreeBSD 8.0 PHP Version: 5.4.11 Block user comment: N Private report: N New Comment: I forgot to mention in my original comment - and this is what you are referring to - that I tried increasing the backtrack limit and recursion limit to really high numbers without any effect. It still crashes. If I lower them to a really small number - like 10 or 100 - then it doesn't crash anymore but it doesn't provide any output either. Previous Comments: ------------------------------------------------------------------------ [2013-02-01 00:17:13] fel...@php.net Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. It isn't a PHP bug, but a PCRE known issue. Check out PCRE manpage to figure out the issue, or use the search on our bugtracker to find similar issues. ------------------------------------------------------------------------ [2013-01-29 11:09:07] george at polarismail dot com Description: ------------ We had this preg_match code running on PHP 5.3.6 and it was crashing so we updated to 5.4.11 and it's still crashing. We are using PCRE 8.3.2 Test script: --------------- $uidlist="40065,40066,40067,40068,40069,40070,40071,40072,40073,40074,40075,40076,40077,40078,40079,40080,40082,40081,40083,40084,40085,40086,40087,40088,40090,40089,40092,40093,40094,40095,40097,40153,40154,40155,40156,40157,40158,40159,40161,40160,40162,40163,40164,40165,40166,40167,40168,40170,40171,40172,40173,40174,40176,40178,40180,40181,40182,40183,40184,40185,40186,40187,40188,40189,40190,40191,40192,40193,40194,40195,40196,40198,40199,40200,40201,40202,40203,40204,40205,40206,40207,40209,40210,40211,40212,40213,40214,40215,40217,40218,40222,40223,40225,40226,40227,40228,40229,40230,40231,40232,40233,40234,40235,40237,40236,40238,40239,40240,40241,40242,40244,40245,40246,40247,40248,40249,40250,40251,40254,40252,40253,40255,40256,40257,40259,40260,40261,40262,40264,40265,40270,40271,40272,40273,40275,40263,40276,40277,40278,40279,40280,40281,40282,40283,40284,40285,40286,40287,40288,40289,40290,40291,40292,40293,40294,40295,40296,40297,40298,40299,40300,40301,40303,40304,40305,40306,40307,40308,40309,40310,40311,40312,40313,40314,40315,40316,40317,40318,40319,40320,40321,40324,40322,40323,40325,40326,40327,40329,40330,40331,40332,40333,40335,40334,40336,40337,40338,40339,40340,40341,40342,40345,40346,40347,40349,40350,40351,40352,40353,40355,40357,40358,40359,40360,40361,40362,40363,40364,40365,40366,40367,40369,40371,40372,40373,40379,40374,40375,40376,40377,40378,40380,40381,40382,40383,40384,40387,40388,40389,40390,40391,40392,40395,40396,40397,40398,40399,40400,40401,40402,40403,40404,40405,40406,40407,40408,40409,40410,40415,40413,40416,40414,40417,40418,40419,40420,40421,40423,40433,40425,40426,40427,40428,40429,40430,40431,40441,40434,40435,40436,40437,40438,40443,40439,40440,40447,40442,40444,40445,40446,40448,40450,40449,40451,40452,40453,40454,40456,40455,40458,40459,40460,40461,40462,40463,40464,40465,40466,40467,40468,40469,40470,40471,40472,40473,40474,40475,40476,40477,40478,40479,40480,40481,40482,40483,40484,40485,40486,40487,40488,40489,40490,40491,40492,40493,40494,40495,40496,40497,40498,40499,40500,40501,40502,40503,40504,40505,40506,40507,40508,40509,40510,40511,40512,40513,40514,40515,40516,40518,40519,40520,40521,40522,40523,40524,40525,40526,40527,40528,40529,40530,40531,40532,40533,40534,40535,40536,40537,40538,40539,40540,40541,40542,40543,40544,40545,40546,40547,40548,40549,40550,40551,40552,40553,40554,40555,40556,40557,40558,40563,40559,40560,40561,40562,40564,40565,40566,40567,40568,40569,40570,40571,40572,40573,40574,40575,40576,40577,40578,40579,40580,40581,40588,40594,40616,40626,40630,40644,40645,40646,40647,40648,40649,40650,40669,40679,40680,40681,40682,40684,40685,40691,40686,40687,40688,40690,40689,40692,40695,40696,40697,40698,40700,40702,40701,40705,40706,40707,40708,40710,40711,40716,40718,40732,40733,40734,40735,40736,40737,40738,40739,40740,40741,40742,40743,40744,40745,40746,40747,40748,40749,40750,40751,40752,40753,40754,40755,40756,40758,40762,40759,40760,40761,40763,40764,40765,40775,40776,40777,40778,40779,40780,40781,40782,40783,40784,40785,40786,40792,40794,40795,40796,40798,40799,40800,40802,40803,40804,40805,40806,40807,40808,40809,40810,40811,40812,40813,40814,40829,40821,40815,40816,40817,40818,40819,40820,40822,40823,40824,40825,40826,40827,40828,40830,40831,40833,40832,40834,40836,40835,40837,40838,40840,40841,40846,40842,40843,40844,40845,40847,40849,40853,40854,40855,40856,40857,40858,40859,40860,40861,40862,40863,40864,40865,40866,40868,40869,40870,40871,40872,40873,40874,40877,40884,40886,40889,40920,40908,40909,40910,40911,40912,40913,40914,40915,40916,40917,40919,40921,40922,40923,40924,40925,40927,40928,40929,40930,40931,40932,40933,40934,40935,40936,40937,40938,40939,40940,40941,40942,40943,40944,40945,40946,40947,40948,40949,40950,40951,40952,40953,40954,40955,40956,40957,40964,40965,40967,40969,40970,40972,40973,40975,40976,40982,40977,40978,40979,40980,40981,40983,40984,40985,40986,40987,40988,40989,40990,40991,40992,40993,40994,40995,40996,40997,40998,40999,41000,41001,41002,41004,41005,41006,41007,41008,41010,41011,41012,41013,41018,41019,41020,41021,41022,41023,41024,41025,41026,41027,41028,41029,41031,41032,41030,41033,41034,41035,41052,41036,41042,41043,41044,41045,41046,41047,41048,41049,41050,41051,41056,41060,41057,41058,41059,41061,41062,41063,41073,41074,41075,41077,41076,41078,41081,41087,41088,41089,41090,41091,41093,41094,41095,41097,41099,41100,41101,41103,41105,41106,41107,41108,41110,41109,41111,41112,41113,41114,41115,41116,41117,41118,41119,41121,41122,41123,41124,41125,41126,41127,41128,41129,41130,41131,41133,41134,41135,41136,41139,41140,41141,41142,41143,41144,41147,41145,41146,41148,41149,41150,41151,41152,41160,41161,41163,41162,41164,41165,41166,41167,41168,41169,41170,41171,41172,41173,41174,41180,41181,41187,41188,41192,41195,41198,41199,41200,41201,41202,41204,41205,41206,41207,41208,41209,41216,41217,41218,41219,41220,41221,41222,41223,41224,41226,41227,41232,41228,41229,41230,41231,41233,41234,41235,4123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if (preg_match("/^(\d+\s*,*\s*|(\d+|\*):(\d+|\*))+$/", $uidlist)) { print "WIN"; } Expected result: ---------------- it's supposed to print WIN Actual result: -------------- seg fault/core dump ....5000 more lines of "in match ()..." #5551 0x0000000800bd8a90 in match () from /usr/local/lib/libpcre.so.3 #5552 0x0000000800bd6ef5 in match () from /usr/local/lib/libpcre.so.3 #5553 0x0000000800be270d in match () from /usr/local/lib/libpcre.so.3 #5554 0x0000000800bd6ef5 in match () from /usr/local/lib/libpcre.so.3 #5555 0x0000000800bd6ef5 in match () from /usr/local/lib/libpcre.so.3 #5556 0x0000000800bd2e74 in match () from /usr/local/lib/libpcre.so.3 #5557 0x0000000800be3f63 in pcre_exec () from /usr/local/lib/libpcre.so.3 #5558 0x0000000000469cfd in php_pcre_match_impl (pce=0x801acc0a0, subject=0x801875ee0 "40065,40066,40067,40068,40069,40070,40071,40072,40073,40074,40075,40076,40077,4 0078,40079,40080,40082,40081,40083,40084,40085,40086,40087,40088,40090,40089,400 92,40093,40094,40095,40097,40153,40154,40"..., subject_len=6035, return_value=0x801855738, subpats=0x0, global=0, use_flags=0, flags=0, start_offset=0) at /usr/ports/lang/php5/work/php-5.4.11/ext/pcre/php_pcre.c:652 #5559 0x00000000004698b8 in php_do_pcre_match (ht=2, return_value=0x801855738, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1, global=0) at /usr/ports/lang/php5/work/php- 5.4.11/ext/pcre/php_pcre.c:546 #5560 0x000000000046a81b in zif_preg_match (ht=2, return_value=0x801855738, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /usr/ports/lang/php5/work/php-5.4.11/ext/pcre/php_pcre.c:798 #5561 0x00000000006a29d0 in zend_do_fcall_common_helper_SPEC (execute_data=0x80181f0d8) at zend_vm_execute.h:642 #5562 0x00000000006aaa3b in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0x80181f0d8) at zend_vm_execute.h:2235 #5563 0x00000000006a0fb1 in execute (op_array=0x801854050) at zend_vm_execute.h:410 #5564 0x0000000000662499 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/ports/lang/php5/work/php-5.4.11/Zend/zend.c:1315 #5565 0x00000000005cb946 in php_execute_script (primary_file=0x7fffffffe870) at /usr/ports/lang/php5/work/php-5.4.11/main/main.c:2492 #5566 0x00000000007ba544 in do_cli (argc=2, argv=0x7fffffffeb30) at /usr/ports/lang/php5/work/php-5.4.11/sapi/cli/php_cli.c:988 #5567 0x00000000007bb529 in main (argc=2, argv=0x7fffffffeb30) at /usr/ports/lang/php5/work/php-5.4.11/sapi/cli/php_cli.c:1364 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64094&edit=1
