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Subject: Re: WARNING: refcount bug in put_pid_ns
References: <001a113f8bf6c849030568bb75d3@google.com>
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Message-ID: <44a322fa-6341-4b88-7f54-705c039f1538@I-love.SAKURA.ne.jp>
Date: Sat, 21 Apr 2018 19:41:21 +0900
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To: syzbot <syzbot+66a731f39da94bb14930@syzkaller.appspotmail.com>, syzkaller-bugs@googlegroups.com
Cc: gregkh@linuxfoundation.org, kstewart@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, pombredanne@nexb.com, tglx@linutronix.de

On 2018/04/01 5:47, syzbot wrote:
> Hello,
> 
> syzbot hit the following crash on upstream commit
> 9dd2326890d89a5179967c947dab2bab34d7ddee (Fri Mar 30 17:29:47 2018 +0000)
> Merge tag 'ceph-for-4.16-rc8' of git://github.com/ceph/ceph-client
> syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=66a731f39da94bb14930

OK. The patch was sent to linux.git as commit 8e04944f0ea8b838.

#syz fix: mm,vmscan: Allow preallocating memory for register_shrinker().