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From: Jiri Kosina <jikos@kernel.org>
To: Peter Hutterer <peter.hutterer@who-t.net>
Cc: Andrey Konovalov <andreyknvl@google.com>,
	syzbot <syzbot+6921abfb75d6fc79c0eb@syzkaller.appspotmail.com>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	"open list:HID CORE LAYER" <linux-input@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	amir73il@gmail.com, Felipe Balbi <balbi@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jan Kara <jack@suse.cz>,
	kuba@kernel.org, linux-fsdevel@vger.kernel.org,
	mathew.j.martineau@linux.intel.com, matthieu.baerts@tessares.net,
	mptcp@lists.01.org, netdev <netdev@vger.kernel.org>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>
Subject: Re: INFO: task hung in corrupted (2)
Date: Thu, 11 Jun 2020 08:58:06 +0200 (CEST)	[thread overview]
Message-ID: <nycvar.YFH.7.76.2006110856290.13242@cbobk.fhfr.pm> (raw)
In-Reply-To: <20200611045118.GA306934@jelly>

On Thu, 11 Jun 2020, Peter Hutterer wrote:

> based on the line numbers it's the while loop in there which is also the one
> that could be unbounded if the hid collection isn't set up correctly or if
> we have some other corruption happening.

Given the fact this is syzkaller-induced, it's almost certainly a 
completely bogus collection. So we are surely missing sanity check that 
there exists a collection with idx -1.

> Need to page this back in to figure out what could be happening here.

Thanks,

-- 
Jiri Kosina
SUSE Labs


      reply	other threads:[~2020-06-11  6:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01 11:30 syzbot
2020-06-02 14:14 ` Andrey Konovalov
2020-06-04 11:41   ` Jiri Kosina
2020-06-11  4:51     ` Peter Hutterer
2020-06-11  6:58       ` Jiri Kosina [this message]

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