linux-kernel - Re: general protection fault in n_tty_set

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Message-ID: <8cec3c41-0d79-c882-4fde-8c8ca4841de2@I-love.SAKURA.ne.jp>
Date:   Tue, 1 May 2018 19:15:19 +0900
From:   Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:     syzbot <syzbot+ed02be0ad5f26ef4e31b@...kaller.appspotmail.com>,
        gregkh@...uxfoundation.org, jslaby@...e.com,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: general protection fault in n_tty_set_termios

This will be essentially same with below one.
ioctl(TIOCVHANGUP) versus ioctl(TCSETS) can race.

#syz dup: KASAN: user-memory-access Write in n_tty_set_termios