From: Leon Romanovsky <leon@kernel.org>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: syzbot <syzbot+71aff6ea121ffefc280f@syzkaller.appspotmail.com>,
dledford@redhat.com, Jason Gunthorpe <jgg@ziepe.ca>,
swise@opengridcomputing.com, markb@mellanox.com,
linux-rdma@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
guro@fb.com, Kees Cook <keescook@chromium.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
Marcos Souza <marcos.souza.org@gmail.com>,
Michal Hocko <mhocko@kernel.org>, Rik van Riel <riel@surriel.com>,
syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
Will Drewry <wad@chromium.org>
Subject: Re: WARNING: ODEBUG bug in free_task
Date: Thu, 11 Oct 2018 21:05:41 +0300 [thread overview]
Message-ID: <20181011180541.GF3742@mtr-leonro.mtl.com> (raw)
In-Reply-To: <CACT4Y+adu4sL96Dp7_m4=Q7bP0eL1w8zVce-2-+FZMAut+E9SA@mail.gmail.com>
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On Wed, Oct 10, 2018 at 02:59:38PM +0200, Dmitry Vyukov wrote:
> On Tue, Oct 9, 2018 at 7:14 PM, syzbot
> <syzbot+71aff6ea121ffefc280f@syzkaller.appspotmail.com> wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit: ae16eea39a86 Add linux-next specific files for 20181008
> > git tree: linux-next
> > console output: https://syzkaller.appspot.com/x/log.txt?x=16a493b9400000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=42525ce985d1a955
> > dashboard link: https://syzkaller.appspot.com/bug?extid=71aff6ea121ffefc280f
> > compiler: gcc (GCC) 8.0.1 20180413 (experimental)
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14567ae6400000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14baa25e400000
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+71aff6ea121ffefc280f@syzkaller.appspotmail.com
>
> This looks the same as:
>
> #syz dup: WARNING in __put_task_struct (2)
>
> The reproducer is all RDMA and also some task refcounting bug.
>
> +RDMA maintainers
Thanks, amazing reproducer, I'm looking on it now.
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prev parent reply other threads:[~2018-10-11 18:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 17:14 WARNING: ODEBUG bug in free_task syzbot
2018-10-10 12:59 ` Dmitry Vyukov
2018-10-11 18:05 ` Leon Romanovsky [this message]
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