https://bugs.exim.org/show_bug.cgi?id=2042
Bug ID: 2042
Summary: Stackoverflow processing pattern "((?:.|\\n)*)"
Product: PCRE
Version: 10.23 (PCRE2)
Hardware: x86-64
OS: Windows
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: ph10@???
Reporter: raul.bocanegra.algarra@???
CC: pcre-dev@???
Created attachment 982
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https://bugs.exim.org/attachment.cgi?id=982&action=edit
Project files and sources to reproduce the issue in Visual Studio 2015.
Hi,
We have discovered that when the pattern "((?:.|\\n)*)" is processed over a
line of over 800 characters, a stackoverflow exception is thrown.
Platform: Windows 10 with VS 2015.
I am not sure if this is due to what is explained in the match context section
regarding long strings (here:
http://www.pcre.org/current/doc/html/pcre2api.html#SEC16). I don't know how
long is a long string considered.
We of course can use a match context to limit the recursive calls, but we was
wondering if this is a bug or a limitation of the library, because a test on
https://regex101.com/ seems to work properly.
We have also tested it on pcretest and we get the same crash.
Thanks for your work!
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