linux/drivers/tty/vt
Linus Torvalds 90bfdeef83 tty: make FONTX ioctl use the tty pointer they were actually passed
Some of the font tty ioctl's always used the current foreground VC for
their operations.  Don't do that then.

This fixes a data race on fg_console.

Side note: both Michael Ellerman and Jiri Slaby point out that all these
ioctls are deprecated, and should probably have been removed long ago,
and everything seems to be using the KDFONTOP ioctl instead.

In fact, Michael points out that it looks like busybox's loadfont
program seems to have switched over to using KDFONTOP exactly _because_
of this bug (ahem.. 12 years ago ;-).

Reported-by: Minh Yuan <yuanmingbuaa@gmail.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Jiri Slaby <jirislaby@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-11-02 14:49:17 -08:00
..
.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, fix kernel-doc 2020-08-18 13:51:18 +02:00
cp437.uni
defkeymap.c_shipped
defkeymap.map
keyboard.c vt: keyboard, extend func_buf_lock to readers 2020-10-28 13:41:02 +01:00
Makefile kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
selection.c vc: propagate "viewed as bool" from screenpos up 2020-08-18 13:45:20 +02:00
vc_screen.c Revert "vc_screen: extract vcs_read_buf_header" 2020-08-24 19:51:56 +02:00
vt_ioctl.c tty: make FONTX ioctl use the tty pointer they were actually passed 2020-11-02 14:49:17 -08:00
vt.c Linux 5.9-rc3 2020-08-31 07:19:25 +02:00