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From: Ingo Molnar <mingo@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Yinghai Lu <yinghai@kernel.org>, Baoquan He <bhe@redhat.com>,
	Borislav Petkov <bp@suse.de>, Ingo Molnar <mingo@redhat.com>,
	"x86@kernel.org" <x86@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	"H.J. Lu" <hjl.tools@gmail.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Andy Lutomirski <luto@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] x86/boot: Rename overlapping memcpy() to memmove()
Date: Thu, 28 Apr 2016 11:04:27 +0200	[thread overview]
Message-ID: <20160428090427.GB5773@gmail.com> (raw)
In-Reply-To: <20160426214606.GA5758@www.outflux.net>


* Kees Cook <keescook@chromium.org> wrote:

> +void *memcpy(void *dest, const void *src, size_t n)

btw., if there's any doubt about other overlapping uses, we could add this to 
memcpy():

  WARN_ON_ONCE(dest > src && dest-src < n);

or so? Does printk() work so early on?

Thanks,

	Ingo

  parent reply	other threads:[~2016-04-28  9:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-26 21:46 Kees Cook
2016-04-28  9:02 ` Ingo Molnar
2016-04-28  9:04 ` Ingo Molnar [this message]
2016-04-28  9:18   ` Kees Cook
2016-04-28  9:37     ` Ingo Molnar
2016-04-28 16:01       ` Kees Cook
2016-04-28 16:31       ` Kees Cook
2016-04-28 16:47         ` One Thousand Gnomes
2016-04-28 16:49           ` Kees Cook
2016-04-28 17:45             ` Ingo Molnar
2016-04-28 10:29 ` [tip:x86/boot] " tip-bot for Kees Cook

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