Nicolas Pitre 57d38f26d8 vt: fix unicode console freeing with a common interface ... By directly using kfree() in different places we risk missing one if it is switched to using vfree(), especially if the corresponding vmalloc() is hidden away within a common abstraction. Oh wait, that's exactly what happened here. So let's fix this by creating a common abstraction for the free case as well. Signed-off-by: Nicolas Pitre <nico@fluxnic.net> Reported-by: syzbot+0bfda3ade1ee9288a1be@syzkaller.appspotmail.com Fixes: 9a98e7a80f ("vt: don't use kmalloc() for the unicode screen buffer") Cc: <stable@vger.kernel.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2005021043110.2671@knanqh.ubzr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-05-04 11:49:59 +02:00
..
.gitignore	tty: vt: move conmakehash to drivers/tty/vt/ from scripts/	2019-12-17 14:42:46 +01:00
conmakehash.c	tty: vt: move conmakehash to drivers/tty/vt/ from scripts/	2019-12-17 14:42:46 +01:00
consolemap.c	tty/vt: avoid high order pages allocation on GIO_UNIMAP ioctl	2019-04-16 15:21:34 +02:00
cp437.uni	tty: fix up a few remaining files without SPDX identifiers	2019-04-04 18:48:43 +02:00
defkeymap.c_shipped	tty: fix up a few remaining files without SPDX identifiers	2019-04-04 18:48:43 +02:00
defkeymap.map	tty: fix up a few remaining files without SPDX identifiers	2019-04-04 18:48:43 +02:00
keyboard.c	tty: vt: keyboard: reject invalid keycodes	2019-11-23 18:31:07 +01:00
Makefile	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
selection.c	vt: selection, use rounddown() for start/endline computation	2020-03-16 08:41:17 +01:00
vc_screen.c	vcs: prevent write access to vcsu devices	2019-11-27 07:47:17 +01:00
vt_ioctl.c	vt: vt_ioctl: fix use-after-free in vt_in_use()	2020-03-27 12:35:04 +01:00
vt.c	vt: fix unicode console freeing with a common interface	2020-05-04 11:49:59 +02:00