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From: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
To: Eric Biggers <ebiggers3@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	syzbot 
	<bot+57840b4d2cc5c46981d5b9e07c9b7b06d5bcf064@syzkaller.appspotmail.com>,
	jslaby@suse.com, linux-kernel@vger.kernel.org,
	syzkaller-bugs@googlegroups.com
Subject: Re: kernel panic: n_tty: init_tty
Date: Tue, 7 Nov 2017 17:18:35 +0000	[thread overview]
Message-ID: <20171107171835.699cbe56@alans-desktop> (raw)
In-Reply-To: <20171106172604.GB50562@gmail.com>

> It's not just running at boot though.  It's also being hit by the fuzzer at
> runtime, via ptmx_open().

Then modify the routine to try N_NULL as a follow up (see
tty_ldisc_restore). N_NULL will never fail.

Alan

  parent reply	other threads:[~2017-11-07 17:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <94eb2c0630b4161a5e055d38a2e3@google.com>
2017-11-05 10:34 ` kernel panic: n_tty: init_tty Greg KH
2017-11-05 22:04   ` Eric Biggers
2017-11-06 12:14     ` Dmitry Vyukov
2017-11-06 12:37       ` Greg KH
2017-11-06 12:33     ` Greg KH
2017-11-06 17:26       ` Eric Biggers
2017-11-07 10:37         ` Dmitry Vyukov
2017-11-07 17:18         ` Alan Cox [this message]
2017-11-06 12:13   ` Dmitry Vyukov
2018-04-05 10:40   ` [PATCH] tty: Don't call panic() at tty_ldisc_init() Tetsuo Handa
2018-04-25 11:04     ` kernel panic: n_tty: init_tty Tetsuo Handa
2017-12-29  8:32 ` syzbot

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