linux-kernel - Re: WARNING: bad unlock balance in ucma_event

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Message-ID: <20190611175749.GA29375@ziepe.ca>
Date:   Tue, 11 Jun 2019 14:57:49 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     syzbot <syzbot+e5579222b6a3edd96522@...kaller.appspotmail.com>,
        dasaratharaman.chandramouli@...el.com, dledford@...hat.com,
        leon@...nel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, parav@...lanox.com,
        roland@...estorage.com, sean.hefty@...el.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: WARNING: bad unlock balance in ucma_event_handler

On Mon, Jun 10, 2019 at 01:45:24PM -0700, Eric Biggers wrote:
> On Mon, Jun 10, 2019 at 04:47:32PM -0300, Jason Gunthorpe wrote:
> > 
> > There are many unfixed syzkaller bugs in rdma_cm, so I'm not surprised
> > it is still happening..
> > 
> > Nobody has stepped forward to work on this code, and it is not a
> > simple mess to understand, let alone try to fix.
> > 
> 
> But people still use it, right?  Do they not care that it's spewing syzbot
> reports?  Are they depending on the kernel to provide any security properties?

Yes, it should be fixed.

Jason