[PATCH v2 0/2] vt: fix some vt_ioctl races

Eric Biggers
2020-03-18T22:40:12Z

Fix VT_DISALLOCATE freeing an in-use virtual console, and fix a
use-after-free in vt_in_use().

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 | 14 +++++++++++++-
drivers/tty/vt/vt_ioctl.c | 24 ++++++++++++------------
2 files changed, 25 insertions(+), 13 deletions(-)

--
2.25.1