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http://bugs.exim.org/show_bug.cgi?id=1338 Summary: Crashes on not-very-long strings that work on other versions Product: PCRE Version: 8.12 Platform: x86-64 URL: http://drupal.org/node/1917530 OS/Version: Windows Status: NEW Severity: bug Priority: high Component: Code AssignedTo: [email protected] ReportedBy: [email protected] CC: [email protected] Platform is Windows PHP5.3.13, PCRE 8.12, from WampServer2.2. Previously worked fine with PHP 5.2.11 (PCRE 7.8 I think) and on Unbuntu with PHP 5.3.2 (PCRE 7.8). Search string (ending in newline): description = "Helps readers share, bookmark, and email your articles and pages using any service, such as Facebook, Twitter, Google+, StumbleUpon, and over 100 more using the <a href='http://share.lockerz.com/' target='_blank'>Lockerz Share / AddToAny</a> widget." PHP code: if (preg_match_all(' @^\s* # Start at the beginning of a line, ignoring leading whitespace ((?: [^=;\[\]]| # Key names cannot contain equal signs, semi-colons or square brackets, \[[^\[\]]*\] # unless they are balanced and not nested )+?) \s*=\s* # Key/value pairs are separated by equal signs (ignoring white-space) (?: ("(?:[^"]|(?<=\\\\)")*")| # Double-quoted string, which may contain slash-escaped quotes/slashes (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes ([^\r\n]*?) # Non-quoted string )\s*$ # Stop at the next end of a line, ignoring trailing whitespace @msx', $data, $matches, PREG_SET_ORDER)) { Result: Crash. Apache resets the connection. The crash is very sensitive to the length of the search string. Make it a little short and it works file. The positive look-ahead assertion, i.e. (?<=\\)" seems to be the culprit. -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
