linux-kernel - Re: possible deadlock in mon_bin_vma

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Message-ID: <000000000000214afd05981ff1a8@google.com>
Date:   Sun, 24 Nov 2019 15:24:00 -0800
From:   syzbot <syzbot+56f9673bb4cdcbeb0e92@...kaller.appspotmail.com>
To:     andreyknvl@...gle.com, arnd@...db.de, gregkh@...uxfoundation.org,
        jrdr.linux@...il.com, keescook@...omium.org,
        kstewart@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, stern@...land.harvard.edu,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de,
        viro@...iv.linux.org.uk, zaitcev@...hat.com
Subject: Re: possible deadlock in mon_bin_vma_fault

Hello,

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

Reported-and-tested-by:  
syzbot+56f9673bb4cdcbeb0e92@...kaller.appspotmail.com

Tested on:

commit:         4d856f72 Linux 5.3
git tree:        
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git v5.3
kernel config:  https://syzkaller.appspot.com/x/.config?x=86071634b2594991
dashboard link: https://syzkaller.appspot.com/bug?extid=56f9673bb4cdcbeb0e92
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11ff3eeee00000

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