[pcre-dev] [Bug 704] New: stack overflow crash

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Author: Lothar Scholz
Date:  
To: pcre-dev
New-Topics: [pcre-dev] [Bug 704] stack overflow crash
Subject: [pcre-dev] [Bug 704] New: stack overflow crash
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http://bugs.exim.org/show_bug.cgi?id=704
           Summary: stack overflow crash
           Product: PCRE
           Version: N/A
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: bug
          Priority: high
         Component: Code
        AssignedTo: ph10@???
        ReportedBy: scholz@???
                CC: pcre-dev@???



If i try to match this line (one single line)

backlog (0.31.1, 0.31.0, 0.30.0, 0.29.0, 0.28.0, 0.26.0, 0.25.0, 0.24.0,
0.23.1, 0.23.0, 0.22.1, 0.22.0, 0.21.3, 0.21.2, 0.21.1, 0.21.0, 0.20.1, 0.20.0,
0.19.0, 0.18.0, 0.17.6, 0.17.5, 0.17.4, 0.17.3, 0.17.2, 0.17.1, 0.17.0, 0.16.0,
0.15.1, 0.15.0, 0.14.4, 0.14.3, 0.14.2, 0.14.1, 0.14.0, 0.13.1, 0.13.0, 0.12.4,
0.12.3, 0.12.2, 0.12.1, 0.12.0, 0.11.0, 0.10.8, 0.10.7, 0.10.6, 0.10.5, 0.10.4,
0.10.3, 0.10.2, 0.10.1, 0.10.0, 0.9.1, 0.9.0, 0.8.1, 0.8.0, 0.7.12, 0.7.11,
0.7.10, 0.7.9, 0.7.8, 0.7.7, 0.7.6, 0.7.5, 0.7.4, 0.7.3, 0.7.2, 0.7.1, 0.7.0,
0.6.6, 0.6.5, 0.6.4, 0.6.3, 0.6.2, 0.6.1, 0.6.0, 0.5.10, 0.5.9, 0.5.8, 0.5.7,
0.5.6, 0.5.5, 0.5.4, 0.5.3, 0.5.2, 0.5.1, 0.5.0, 0.4.0, 0.3.9, 0.3.8, 0.3.7,
0.3.6, 0.3.5, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.3.0, 0.2.1, 0.2.0, 0.1.2, 0.1.1,
0.1.0, 0.0.5, 0.0.4, 0.0.3, 0.0.2, 0.0.1, 0.0.0)

against this 7.6 utf8 regexpr on WinXP:

^([a-zA-Z0-9-_.]+)\s*\(\d+(\.\d+)*\s*(,\s*\d+(\.\d+)*)*\)\s*$

the library crashs with a stack overflow error in pcre_exec.
int vec[200];
pcre_exec(r->expr, NULL, str, len, 0, PCRE_ANCHORED, vec, 200);


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