Re: [PATCH] ide: don't call memcpy with the same source and destination

From	David Miller <davem@davemloft.net>
Newsgroups	linux.kernel
Subject	Re: [PATCH] ide: don't call memcpy with the same source and destination
Date	2017-05-08 23:40 +0200
Message-ID	<tEYxQ-SB-21@gated-at.bofh.it> (permalink)
References	<tweiu-4wE-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 14 Apr 2017 14:35:33 -0400 (EDT)

> The parisc architecture recently reimplemented the memcpy function and
> their reimplementation crashed when source and destination overlapped.
> 
> The crash happened in the function ide_complete_cmd where memcpy is called
> with the same source and destination pointer. According to the C
> specification, memcpy behavior is undefined if the source and destination
> range overlaps. This patches fixes the undefined behavior.
> 
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

Applied.

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Re: [PATCH] ide: don't call memcpy with the same source and  destination David Miller <davem@davemloft.net> - 2017-05-08 23:40 +0200

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