From: Eric Biggers <ebiggers@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
syzkaller-bugs@googlegroups.com,
Eric Dumazet <edumazet@google.com>,
Nicolas Pitre <nico@fluxnic.net>
Subject: [PATCH v3 0/2] vt: fix some vt_ioctl races
Date: Sat, 21 Mar 2020 20:43:03 -0700 [thread overview]
Message-ID: <20200322034305.210082-1-ebiggers@kernel.org> (raw)
In-Reply-To: <20200320193424.GM851@sol.localdomain>
Fix VT_DISALLOCATE freeing an in-use virtual console, and fix a
use-after-free in vt_in_use().
Changed since v2:
- Implemented tty_port_operations::destruct().
- Added comments regarding vt_in_use() locking.
Changed since v1:
- Made the vc_data be freed via tty_port refcounting.
- Added patch to fix a use-after-free in vt_in_use().
Eric Biggers (2):
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
vt: vt_ioctl: fix use-after-free in vt_in_use()
drivers/tty/vt/vt.c | 23 ++++++++++++++++++++++-
drivers/tty/vt/vt_ioctl.c | 28 ++++++++++++++++------------
2 files changed, 38 insertions(+), 13 deletions(-)
--
2.25.2
next prev parent reply other threads:[~2020-03-22 3:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200318222704.GC2334@sol.localdomain>
2020-03-18 22:38 ` [PATCH v2 0/2] vt: fix some vt_ioctl races Eric Biggers
2020-03-18 22:38 ` [PATCH v2 1/2] vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console Eric Biggers
2020-03-19 7:36 ` Jiri Slaby
2020-03-20 5:10 ` Eric Biggers
2020-03-20 6:57 ` Greg Kroah-Hartman
2020-03-18 22:38 ` [PATCH v2 2/2] vt: vt_ioctl: fix use-after-free in vt_in_use() Eric Biggers
2020-03-20 13:42 ` Jiri Slaby
2020-03-20 19:34 ` Eric Biggers
2020-03-22 3:43 ` Eric Biggers [this message]
2020-03-22 3:43 ` [PATCH v3 1/2] vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console Eric Biggers
2020-03-27 10:28 ` Jiri Slaby
2020-03-22 3:43 ` [PATCH v3 2/2] vt: vt_ioctl: fix use-after-free in vt_in_use() Eric Biggers
2020-03-27 10:30 ` Jiri Slaby
2020-03-24 11:29 ` [PATCH v3 0/2] vt: fix some vt_ioctl races Greg Kroah-Hartman
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