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http://bugs.exim.org/show_bug.cgi?id=1615 --- Comment #8 from Zoltan Herczeg <[email protected]> 2015-04-17 13:43:42 --- > which as I understand it does do the UTF-8 check, and wouldn't suffer from jit > assumptions of valid UTF-8, would it? Yes it should. It is difficult to figure out this bug without knowing the input. I can only do wild guesses. I know that \b does a backward character scan. It searches for a valid utf start byte. That can underflow for invalid UTF sequences. Or maybe there is a bug, which incorrectly processes this search. Or there is a bug in the UTF validation. Could you share the first few bytes of the input (as hex bytes) and the start offset? -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
