From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, jslaby@suse.com, aszlig@nix.build,
gmazyland@gmail.com, torvalds@linux-foundation.org, w@1wt.eu,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH 0/2] tty: erase buffers when the kernel is done with it.
Date: Tue, 2 Oct 2018 10:17:06 -0700 [thread overview]
Message-ID: <20181002171708.1311-1-gregkh@linuxfoundation.org> (raw)
azlig and Milan Broz reported that when the tty layer is done with a
buffer, the data can hang around in it for a very long time. That
sometimes can "leak" to userspace under some conditions.
Because of this, just zero out the data after the tty layer is finished
with it, for buffers that we "think" should be zeroed out.
Greg Kroah-Hartman (1):
tty: wipe buffer if not echoing data
Linus Torvalds (1):
tty: wipe buffer.
drivers/tty/n_tty.c | 20 +++++++++++++++++---
drivers/tty/tty_buffer.c | 6 +++++-
2 files changed, 22 insertions(+), 4 deletions(-)
--
2.19.0
next reply other threads:[~2018-10-02 17:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-02 17:17 Greg Kroah-Hartman [this message]
2018-10-02 17:17 ` [PATCH 1/2] tty: wipe buffer Greg Kroah-Hartman
2018-10-02 17:17 ` [PATCH 2/2] tty: wipe buffer if not echoing data Greg Kroah-Hartman
2018-10-03 6:55 ` Milan Broz
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