GNU bug report logs - #18738
Reference of a uninitialized variable in grep -P

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Message #13 received at 18738-done <at> debbugs.gnu.org (full text, mbox):

From: Norihiro Tanaka <noritnk <at> kcn.ne.jp>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: 18738-done <at> debbugs.gnu.org
Subject: Re: bug#18738: Reference of a uninitialized variable in grep -P
Date: Thu, 16 Oct 2014 08:56:05 +0900

[Message part 1 (text/plain, inline)]

Paul Eggert wrote:
> Thanks for reporting that.  It's a bug in one of the optimizations I
> recently added to work around the libpcre slownesses with UTF-8.
> It's also a bug in our test cases, which should have caught the bug.
> I fixed it with the attached patch.

Thanks for fixing that.

BTW, validation_boundary isn't initialized before pre-searching for an
empty line clearly.  As it's set to 0 (NULL pointer in many machine)
implicitly, it isn't a bug.  However, if you don't avoid to initialize it
by intent, could you consider an attached patch?

[0001-grep-initialized-validation_boundary-before-pre-sear.patch (text/plain, attachment)]

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