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

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Date:   Mon, 10 Jun 2019 13:45:24 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     Jason Gunthorpe <jgg@...pe.ca>
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 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?

- Eric