Edit report at https://bugs.php.net/bug.php?id=61744&edit=1
ID: 61744
Comment by: bugzilla33 at gmail dot com
Reported by: bugzilla33 at gmail dot com
Summary: preg_match crashes
Status: Open
Type: Bug
Package: *Regular Expressions
Operating System: Win 7 64-bit
PHP Version: 5.4.1RC2
Block user comment: N
Private report: N
New Comment:
When use #^(A{1}B)+$# instead of #^(A{1,2}B)+$#
testcase returns 1 - no crash
Previous Comments:
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[2012-04-16 16:34:13] bugzilla33 at gmail dot com
...and I tested Windows 7 only (32-bit and 64-bit)
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[2012-04-16 16:31:13] bugzilla33 at gmail dot com
...but using apache module phpinfo also says:
pcre.backtrack_limit 1000000
pcre.recursion_limit 100000
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[2012-04-16 16:29:34] bugzilla33 at gmail dot com
str_repeat('AB',200) do not crash
str_repeat('AB',300) crashes - browser freeze about 4sec and info - browser can
not display site
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[2012-04-16 16:18:15] [email protected]
Windows-only, I assume? Apache uses PCRE as well, so perhaps Apache on Windows
is
resetting the PCRE limits? I assume it doesn't crash if you reduce the 300
there
to something smaller?
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[2012-04-16 16:13:05] bugzilla33 at gmail dot com
I checked recursion-limit:
pcre.backtrack_limit 1000000
pcre.recursion_limit 100000
On fastCGI or direct php.exe testcase.php does not crash.
When use Apache 2.2.21 with php module with the same php.ini
testcase.php crash apache.
Now I am at home. The same crash like at work - two other machines.
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