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linux/drivers/tty
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Colin Ian King 9ef8927f45 n_tty: check for negative and zero space return from tty_write_room 
The return from tty_write_room could potentially be negative if
a tty write_room driver returns an error number (not that any seem
to do). Rather than just check for a zero return, also check for
a -ve return. This avoids the unsigned nr being set to a large unsigned
value on the assignment from variable space and can lead to overflowing
the buffer buf.  Better to be safe than assume all write_room
implementations in tty drivers are going to do the right thing.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-16 15:21:33 +02:00
..
hvc
tty: add SPDX identifiers to Kconfig and Makefiles
2019-04-04 18:48:43 +02:00
ipwireless
tty: add SPDX identifiers to Kconfig and Makefiles
2019-04-04 18:48:43 +02:00
serdev
tty: add SPDX identifiers to Kconfig and Makefiles
2019-04-04 18:48:43 +02:00
serial
tty: fix up a few remaining files without SPDX identifiers
2019-04-04 18:48:43 +02:00
vt
tty: fix up a few remaining files without SPDX identifiers
2019-04-04 18:48:43 +02:00
amiserial.c
kill TIOCSERGSTRUCT
2018-10-13 00:50:53 -04:00
cyclades.c
cyclades: switch to ->[sg]et_serial()
2018-10-13 00:50:30 -04:00
ehv_bytechan.c
tty: Convert to using %pOFn instead of device_node.name
2018-09-18 16:07:25 +02:00
goldfish.c
headers: separate linux/mod_devicetable.h from linux/platform_device.h
2018-07-07 17:52:26 +02:00
isicom.c
isicom: switch to ->[sg]et_serial()
2018-10-13 00:50:31 -04:00
Kconfig
tty: add SPDX identifiers to Kconfig and Makefiles
2019-04-04 18:48:43 +02:00
Makefile
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
2018-03-26 15:57:24 +02:00
mips_ejtag_fdc.c
tty: Remove redundant license text
2017-11-08 13:08:12 +01:00
moxa.c
moxa: switch to ->[sg]et_serial()
2018-10-13 00:50:32 -04:00
moxa.h
tty: moxa: Add support for CMSPAR
2017-11-28 15:32:33 +01:00
mxser.c
mxser: switch to ->[sg]et_serial()
2018-10-13 00:50:32 -04:00
mxser.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
n_gsm.c
tty: n_gsm: Mark expected switch fall-throughs
2019-02-26 12:30:44 +01:00
n_hdlc.c
tty/n_hdlc: mark expected switch fall-through
2019-02-14 10:49:19 +01:00
n_null.c
tty: Remove redundant license text
2017-11-08 13:08:12 +01:00
n_r3964.c
tty: Don't block on IO when ldisc change is pending
2018-12-05 12:16:33 +01:00
n_tracerouter.c
tty: Remove redundant license text
2017-11-08 13:08:12 +01:00
n_tracesink.c
tty: Remove redundant license text
2017-11-08 13:08:12 +01:00
n_tracesink.h
tty: Remove redundant license text
2017-11-08 13:08:12 +01:00
n_tty.c
n_tty: check for negative and zero space return from tty_write_room
2019-04-16 15:21:33 +02:00
nozomi.c
tty/nozomi: use pci_iomap instead of ioremap_nocache
2019-02-12 10:26:45 +01:00
pty.c
Revert "tty: pty: Fix race condition between release_one_tty and pty_write"
2019-03-29 15:47:40 +01:00
rocket_int.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rocket.c
tty: rocket: Fix possible buffer overwrite on register_PCI
2018-08-02 10:11:32 +02:00
rocket.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
synclink_gt.c
synclink_gt(): fix compat_ioctl()
2018-10-13 00:50:52 -04:00
synclink.c
tty/synclink: remove ISA support
2019-02-12 08:51:33 +01:00
synclinkmp.c
synclink: reduce pointless checks in ->ioctl()
2018-10-13 00:50:43 -04:00
sysrq.c
tty/sysrq: Convert show_lock to raw_spinlock_t
2019-03-28 01:24:55 +09:00
tty_audit.c
audit: join tty records to their syscall
2019-02-07 21:33:54 -05:00
tty_baudrate.c
termios, tty/tty_baudrate.c: fix buffer overrun
2018-11-08 03:36:45 -08:00
tty_buffer.c
tty: increase the default flip buffer limit to 2*640K
2019-01-30 12:03:58 +01:00
tty_io.c
Revert "tty: pty: Fix race condition between release_one_tty and pty_write"
2019-03-29 15:47:40 +01:00
tty_ioctl.c
move compat handling of tty ioctls to tty_compat_ioctl()
2018-09-14 11:12:17 -04:00
tty_jobctrl.c
tty: fix read of tty->pgrp outside of ctrl_lock
2019-03-28 01:28:23 +09:00
tty_ldisc.c
tty: ldisc: add sysctl to prevent autoloading of ldiscs
2019-01-30 09:31:30 +01:00
tty_ldsem.c
tty/ldsem: Decrement wait_readers on timeouted down_read()
2018-12-05 12:16:33 +01:00
tty_mutex.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tty_port.c
tty: fix NULL pointer issue when tty_port ops is not set
2019-03-28 01:21:21 +09:00
vcc.c
tty: fix up a few remaining files without SPDX identifiers
2019-04-04 18:48:43 +02:00