netdev - Re: WARNING: refcount bug in should

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Message-ID: <CACT4Y+YM9m+t7cDPMYpK93mMi1mcq+3-WutYu23db7KiwU8MrQ@mail.gmail.com>
Date:   Tue, 3 Apr 2018 13:27:42 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Al Viro <viro@...iv.linux.org.uk>
Cc:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        syzbot <syzbot+@...kaller.appspotmail.com>,
        syzkaller-bugs@...glegroups.com,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>, netdev <netdev@...r.kernel.org>
Subject: Re: WARNING: refcount bug in should_fail

On Tue, Apr 3, 2018 at 7:20 AM, Al Viro <viro@...iv.linux.org.uk> wrote:
> On Mon, Apr 02, 2018 at 10:59:34PM +0100, Al Viro wrote:
>
>> FWIW, I'm going through the ->kill_sb() instances, fixing that sort
>> of bugs (most of them preexisting, but I should've checked instead
>> of assuming that everything's fine).  Will push out later tonight.
>
> OK, see vfs.git#for-linus.  Caught: 4 old bugs (allocation failure
> in fill_super oopses ->kill_sb() in hypfs, jffs2 and orangefs resp.
> and double-dput in late failure exit in rpc_fill_super())
> and 5 regressions from register_shrinker() failure recovery.

Nice!