linux-kernel - Re: [lkp] [fs] 45ec18d5c7: BUG: KASAN: user-memory-access on address 00007f90291c7ec0

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Message-ID: <20160809011758.GE8581@yexl-desktop>
Date:	Tue, 9 Aug 2016 09:17:58 +0800
From:	Ye Xiaolong <xiaolong.ye@...el.com>
To:	Valdis.Kletnieks@...edu
Cc:	Nicholas Krause <xerofoify@...il.com>,
	0day robot <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: Re: [lkp] [fs] 45ec18d5c7: BUG: KASAN: user-memory-access on address
 00007f90291c7ec0

On 08/08, Valdis.Kletnieks@...edu wrote:
>On Sun, 07 Aug 2016 22:02:42 +0800, kernel test robot said:
>
>> FYI, we noticed the following commit:
>>
>> https://github.com/0day-ci/linux
>> Nicholas-Krause/fs-Fix-kmemleak-leak-warning-in-getname_flags-about-working-on-unitialized-memory/20160804-055054
>> commit 45ec18d5c713bccb9807782f0dca29b92ba99784 ("fs:Fix kmemleak leak warning in getname_flags about working on unitialized memory")
>
>The real question here is why the 0day system was even bothering to try
>compiling and booting a patch from somebody who has a long record of failing
>to do so with patches before submission.  Actually looking at the patch
>in question shows that little or no thought or testing was done (hint:
>look at it, and wonder in amazement why there's a dump_stack() call where
>it is....)
>
>In other words - how did this patch get into a tree that 0day listens to?

0Day has a service to automatically capture every patchset sent to LKML, and convert
email patchset to git branches by applying them on top of different
trees heuristically.