linux-kernel - Re: possible deadlock in siw_create

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Date:   Mon, 9 Mar 2020 09:57:47 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     syzbot <syzbot+3fbea977bd382a4e6140@...kaller.appspotmail.com>
Cc:     bmt@...ich.ibm.com, dledford@...hat.com,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: possible deadlock in siw_create_listen

On Sun, Mar 08, 2020 at 04:13:15PM -0700, syzbot wrote:
> syzbot has found a reproducer for the following crash on:
> 
> HEAD commit:    425c075d Merge branch 'tun-debug'
> git tree:       net-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1531a0b1e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=598678fc6e800071
> dashboard link: https://syzkaller.appspot.com/bug?extid=3fbea977bd382a4e6140
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e3df31e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=163d0439e00000
> 
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+3fbea977bd382a4e6140@...kaller.appspotmail.com

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next

Jason