linux-kernel - Re: [console_unlock] BUG: KASAN: use-after-scope in console

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Message-ID: <CACT4Y+ZL_xY-HJwgU+XQ-onqe+coxbNGOBno6HrPHwYuPdHRFA@mail.gmail.com>
Date:   Thu, 19 Apr 2018 11:50:20 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Fengguang Wu <fengguang.wu@...el.com>
Cc:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Pavel Tatashin <pasha.tatashin@...cle.com>,
        Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        Nikitas Angelinas <nikitas.angelinas@...il.com>,
        Matt Redfearn <matt.redfearn@...s.com>,
        LKML <linux-kernel@...r.kernel.org>, LKP <lkp@...org>,
        Steven Sistare <steven.sistare@...cle.com>,
        Daniel Jordan <daniel.m.jordan@...cle.com>,
        Bob Picco <bob.picco@...cle.com>,
        Linux Memory Management List <linux-mm@...ck.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [console_unlock] BUG: KASAN: use-after-scope in console_unlock+0x9cd/0xd10

On Thu, Apr 19, 2018 at 8:55 AM, Fengguang Wu <fengguang.wu@...el.com> wrote:
> On Thu, Apr 19, 2018 at 03:20:50PM +0900, Sergey Senozhatsky wrote:
>>
>> On (04/19/18 08:04), Dmitry Vyukov wrote:
>> [..]
>>>
>>> We could also make them mutually exclusive in config to prevent people
>>> from hitting these false positives again and again.
>>
>>
>> Let's do it. Ard and Kees agreed on making them mutually exclusive [1][2].
>> Dmitry, could send out a patch?
>>
>> [1]
>> lkml.kernel.org/r/CAKv+Gu8HN-t2om8sCfjxCWbsgSir54fZw222dsed0Xwqph2aNg@...l.gmail.com
>> [2]
>> lkml.kernel.org/r/CAGXu5j+mcfo4aB3PM1We6O62bFBJcMFX-9obJE4jFU1Dp=gNwg@...l.gmail.com
>
>
> That'd be great, thank you very much!


Just mailed "KASAN: prohibit KASAN+STRUCTLEAK combination":
https://groups.google.com/d/msg/kasan-dev/Y1TEh7ZlHTQ/wR36C8uMCgAJ