Messages in this thread | | | From | Eric Biggers <> | Subject | [PATCH v3 0/2] vt: fix some vt_ioctl races | Date | Sat, 21 Mar 2020 20:43:03 -0700 |
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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
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