Nicolas Pitre a3da2984a4 vt: fix unicode console freeing with a common interface ... [ Upstream commit 57d38f26d8 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-05-14 07:57:17 +02:00
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hvc	tty: hvc: fix buffer overflow during hvc_alloc().	2020-04-29 16:31:30 +02:00
ipwireless	tty: ipwireless: Fix potential NULL pointer dereference	2020-01-27 14:50:16 +01:00
serdev	serdev: ttyport: restore client ops on deregistration	2020-02-28 16:38:49 +01:00
serial	serial: sh-sci: Make sure status register SCxSR is read in correct sequence	2020-04-29 16:31:34 +02:00
vt	vt: fix unicode console freeing with a common interface	2020-05-14 07:57:17 +02:00
amiserial.c
cyclades.c
ehv_bytechan.c	tty: evh_bytechan: Fix out of bounds accesses	2020-04-23 10:30:23 +02:00
goldfish.c
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c
n_hdlc.c
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c
pty.c
rocket_int.h
rocket.c	tty: rocket, avoid OOB access	2020-04-29 16:31:30 +02:00
rocket.h
synclink_gt.c	tty: synclink_gt: Adjust indentation in several functions	2020-02-24 08:34:47 +01:00
synclink.c
synclinkmp.c	tty: synclinkmp: Adjust indentation in several functions	2020-02-24 08:34:47 +01:00
sysrq.c	sysrq: Remove duplicated sysrq message	2020-03-05 16:42:15 +01:00
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c	serdev: ttyport: restore client ops on deregistration	2020-02-28 16:38:49 +01:00
vcc.c