android_kernel_motorola_sm6375/drivers/tty
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Nicolas Pitre 64882aa0c5 vt: don't use kmalloc() for the unicode screen buffer
commit 9a98e7a80f95378c9ee0c644705e3b5aa54745f1 upstream.

Even if the actual screen size is bounded in vc_do_resize(), the unicode
buffer is still a little more than twice the size of the glyph buffer
and may exceed MAX_ORDER down the kmalloc() path. This can be triggered
from user space.

Since there is no point having a physically contiguous buffer here,
let's avoid the above issue as well as reducing pressure on high order
allocations by using vmalloc() instead.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Cc: <stable@vger.kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2003282214210.2671@knanqh.ubzr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-29 16:33:21 +02:00
..
hvc tty: hvc: fix buffer overflow during hvc_alloc(). 2020-04-29 16:33:17 +02:00
ipwireless
serdev serdev: ttyport: restore client ops on deregistration 2020-02-28 17:22:19 +01:00
serial tty: serial: owl: add "much needed" clk_prepare_enable() 2020-04-29 16:33:14 +02:00
vt vt: don't use kmalloc() for the unicode screen buffer 2020-04-29 16:33:21 +02:00
amiserial.c
cyclades.c
ehv_bytechan.c tty: evh_bytechan: Fix out of bounds accesses 2020-04-23 10:36:44 +02:00
goldfish.c
isicom.c tty/isicom: remove redundant assignment to variable word_count 2019-09-04 12:43:44 +02:00
Kconfig docs: serial: move it to the driver-api 2019-07-15 11:03:03 -03:00
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c tty: n_gsm: avoid recursive locking with async port hangup 2019-09-04 12:43:56 +02:00
n_hdlc.c tty: n_hdlc: fix build on SPARC 2019-10-04 15:14:20 +02:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c tty: nozomi: Use dev_get_drvdata 2019-09-04 12:43:44 +02:00
pty.c
rocket.c tty: rocket, avoid OOB access 2020-04-29 16:33:17 +02:00
rocket.h
rocket_int.h
synclink.c
synclink_gt.c tty: synclink_gt: Adjust indentation in several functions 2020-02-24 08:36:47 +01:00
synclinkmp.c tty: synclinkmp: Adjust indentation in several functions 2020-02-24 08:36:47 +01:00
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c tty: fix compat TIOCGSERIAL checking wrong function ptr 2020-03-25 08:25:52 +01:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
tty_ldsem.c tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop 2019-07-25 15:39:24 +02:00
tty_mutex.c
tty_port.c serdev: ttyport: restore client ops on deregistration 2020-02-28 17:22:19 +01:00
ttynull.c
vcc.c