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From: "J. Bruce Fields" <bfields@fieldses.org>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
	syzbot <syzbot+1f371ca19b341a276761@syzkaller.appspotmail.com>,
	jlayton@kernel.org, linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: general protection fault in send_sigurg_to_task
Date: Wed, 15 Aug 2018 16:35:03 -0400	[thread overview]
Message-ID: <20180815203503.GB30591@fieldses.org> (raw)
In-Reply-To: <CACT4Y+YujnbvrgRU6xc+=8rHLctrjQbRP+wq-08UmbH_oOfAKA@mail.gmail.com>

On Tue, Aug 14, 2018 at 01:50:20PM -0700, Dmitry Vyukov wrote:
> On Tue, Aug 14, 2018 at 12:11 PM, J. Bruce Fields <bfields@fieldses.org> wrote:
> > On Mon, Aug 13, 2018 at 06:33:02AM -0700, syzbot wrote:
> >> syzbot has found a reproducer for the following crash on:
> >>
> >> HEAD commit:    5ed5da74de9e Add linux-next specific files for 20180813
> >> git tree:       linux-next
> >
> > I fetched linux-next but don't have 5ed5da74de9e.
> 
> Hi Bruce,
> 
> +Stephen for the disappeared linux-next commit.
> 
> On the dashboard link you can see that it also happened on a more
> recent commit 4e8b38549b50459a22573d756dd1f4e1963c2a8d that I do see
> now in linux-next.
> 
> > I'm also not sure why I'm on the cc for this.
> 
> You've been pointed to by "./scripts/get_maintainer.pl -f fs/fcntl.c"
> as maintainer of the file, which is the file where the crash happened.

We should probably fix that.  There's a tiny bit of lock-related code in
that file but it's not at all interesting compared, say, to the code
that this bug is hitting....

(Which I have no clue about.  send_sigurg_to_task() is getting a bad
task?  Help.)

--b.

diff --git a/MAINTAINERS b/MAINTAINERS
index 9d5eeff51b5f..a5dca2be8513 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5541,9 +5541,6 @@ M:	Jeff Layton <jlayton@kernel.org>
 M:	"J. Bruce Fields" <bfields@fieldses.org>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
-F:	include/linux/fcntl.h
-F:	include/uapi/linux/fcntl.h
-F:	fs/fcntl.c
 F:	fs/locks.c
 
 FILESYSTEMS (VFS and infrastructure)

  parent reply	other threads:[~2018-08-15 23:28 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-13 12:54 general protection fault in send_sigurg_to_task syzbot
2018-08-13 13:33 ` syzbot
2018-08-14 19:11   ` J. Bruce Fields
2018-08-14 20:50     ` Dmitry Vyukov
2018-08-15  0:11       ` Stephen Rothwell
2018-08-15 18:53         ` J. Bruce Fields
2018-08-15 20:35       ` J. Bruce Fields [this message]
2018-08-16  4:01       ` Eric W. Biederman
2018-08-17 17:26         ` Dmitry Vyukov
2018-08-17 18:22           ` Eric W. Biederman
2018-08-17 18:38             ` J. Bruce Fields
2018-08-17 18:42             ` Dmitry Vyukov

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