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From: Stephan Mueller <smueller@chronox.de>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: syzbot <syzbot+9c251bdd09f83b92ba95@syzkaller.appspotmail.com>,
	David Miller <davem@davemloft.net>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
	<linux-crypto@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>
Subject: Re: KMSAN: uninit-value in af_alg_free_areq_sgls
Date: Fri, 06 Jul 2018 18:27:07 +0200	[thread overview]
Message-ID: <2936767.s7CfvshsC6@tauon.chronox.de> (raw)
In-Reply-To: <CACT4Y+Yv8M93-N3J1U6r1X=Oy2SaKQpJU1S6iJeFC8bJMnjuKg@mail.gmail.com>

Am Freitag, 6. Juli 2018, 10:19:07 CEST schrieb Dmitry Vyukov:

Hi Dmitry,

> On Fri, Jul 6, 2018 at 10:09 AM, syzbot
> 
> <syzbot+9c251bdd09f83b92ba95@syzkaller.appspotmail.com> wrote:
> > Hello,
> > 
> > syzbot tried to test the proposed patch but build/boot failed:
> > 
> > lost connection to test machine
> 
> Looking into this.

syzkaller reported the following which implies that the patch seems to fix the 
issue.


syzbot has tested the proposed patch and the reproducer did not trigger  
crash:

Reported-and-tested-by:  
syzbot+9c251bdd09f83b92ba95@syzkaller.appspotmail.com

Tested on:

commit:         a00de5aa4da3 kmsan: delete some dead code
git tree:       https://github.com/google/kmsan.git/master
kernel config:  https://syzkaller.appspot.com/x/.config?x=b11f4cfb262ee607
compiler:       clang version 7.0.0 (trunk 334104)
patch:          https://syzkaller.appspot.com/x/patch.diff?x=13194968400000

Note: testing is done by a robot and is best-effort only.


Ciao
Stephan



  parent reply	other threads:[~2018-07-06 16:27 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-08  7:07 KMSAN: uninit-value in af_alg_free_areq_sgls syzbot
2018-04-08 17:57 ` [PATCH] AF_ALG: register completely initialized request in list Stephan Müller
2018-04-09  7:51   ` Dmitry Vyukov
2018-04-09  7:54     ` Stephan Mueller
2018-07-04 23:37       ` Eric Biggers
2018-07-05  7:49         ` Stephan Müller
2018-07-05  8:43           ` Dmitry Vyukov
2018-07-05 15:58 ` [PATCH v2] AF_ALG: Initialize sg_num_bytes in error code path Stephan Müller
2018-07-05 17:02   ` KMSAN: uninit-value in af_alg_free_areq_sgls syzbot
2018-07-05 18:45     ` Stephan Müller
2018-07-06  7:38       ` Dmitry Vyukov
2018-07-06  7:41         ` Stephan Mueller
2018-07-06  7:44           ` Dmitry Vyukov
2018-07-06  7:50 ` [PATCH v3] AF_ALG: Initialize sg_num_bytes in error code path Stephan Müller
2018-07-06  7:58   ` Dmitry Vyukov
2018-07-06  8:09   ` KMSAN: uninit-value in af_alg_free_areq_sgls syzbot
2018-07-06  8:19     ` Dmitry Vyukov
2018-07-06 15:30       ` Dmitry Vyukov
2018-07-06 15:55         ` syzbot
2018-07-06 16:27       ` Stephan Mueller [this message]
2018-07-06 21:57   ` [PATCH v3] AF_ALG: Initialize sg_num_bytes in error code path Eric Biggers
2018-07-07 18:41 ` [PATCH v4] " Stephan Müller
2018-07-07 19:01   ` KMSAN: uninit-value in af_alg_free_areq_sgls syzbot
2018-07-13 10:34   ` [PATCH v4] AF_ALG: Initialize sg_num_bytes in error code path Herbert Xu
2018-07-20 12:14 [PATCH 4.14 56/92] crypto: af_alg - " Greg Kroah-Hartman
2018-07-20 12:54 ` KMSAN: uninit-value in af_alg_free_areq_sgls syzbot
2018-07-20 12:14 [PATCH 4.17 066/101] crypto: af_alg - Initialize sg_num_bytes in error code path Greg Kroah-Hartman
2018-07-20 13:08 ` KMSAN: uninit-value in af_alg_free_areq_sgls syzbot

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