mbox series

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

Message ID 20200318223810.162440-1-ebiggers@kernel.org
Headers show
Series vt: fix some vt_ioctl races | expand

Message

Eric Biggers March 18, 2020, 10:38 p.m. UTC 
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(-)