Groups > linux.kernel > #1691971

Re: [PATCH] lib/strscpy: avoid KASAN false positive

From	Dave Jones <davej@codemonkey.org.uk>
Newsgroups	linux.kernel
Subject	Re: [PATCH] lib/strscpy: avoid KASAN false positive
Date	2017-07-19 18:10 +0200
Message-ID	<u4ZHY-2x4-15@gated-at.bofh.it> (permalink)
References	(2 earlier) <u4Hi2-71I-23@gated-at.bofh.it> <u4Hi2-71I-21@gated-at.bofh.it> <u4IQO-86Q-25@gated-at.bofh.it> <u4IQO-86Q-23@gated-at.bofh.it> <u4ZHY-2x4-17@gated-at.bofh.it>
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On Wed, Jul 19, 2017 at 11:39:32AM -0400, Chris Metcalf wrote:
 
 > > We could just remove all that word-at-a-time logic.  Do we have any
 > > evidence that this would harm anything?
 > 
 > The word-at-a-time logic was part of the initial commit since I wanted
 > to ensure that strscpy could be used to replace strlcpy or strncpy without
 > serious concerns about performance.

I'm curious what the typical length of the strings we're concerned about
in this case are if this makes a difference.

	Dave

Thread

Re: [PATCH] lib/strscpy: avoid KASAN false positive Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-18 19:30 +0200
  Re: [PATCH] lib/strscpy: avoid KASAN false positive Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-18 22:30 +0200
    Re: [PATCH] lib/strscpy: avoid KASAN false positive Andrew Morton <akpm@linux-foundation.org> - 2017-07-19 00:10 +0200
      Re: [PATCH] lib/strscpy: avoid KASAN false positive Linus Torvalds <torvalds@linux-foundation.org> - 2017-07-19 00:40 +0200
        Re: [PATCH] lib/strscpy: avoid KASAN false positive Dmitry Vyukov <dvyukov@google.com> - 2017-07-19 09:50 +0200
      Re: [PATCH] lib/strscpy: avoid KASAN false positive Dave Jones <davej@codemonkey.org.uk> - 2017-07-19 18:10 +0200
        Re: [PATCH] lib/strscpy: avoid KASAN false positive Dmitry Vyukov <dvyukov@google.com> - 2017-07-26 14:10 +0200

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