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linux/drivers/tty/serial
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Peter Hurley 5859b90777 serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) 
commit 308bbc9ab8 upstream.

The omap-serial driver emulates RS485 delays using software timers,
but neglects to clamp the input values from the unprivileged
ioctl(TIOCSRS485). Because the software implementation busy-waits,
malicious userspace could stall the cpu for ~49 days.

Clamp the input values to < 100ms.

Fixes: 4a0ac0f55b ("OMAP: add RS485 support")
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-25 12:01:14 -08:00
..
8250
serial: 8250_pci: Add Intel Broadwell ports
2016-02-25 12:01:14 -08:00
cpm_uart
tty: serial: cpm_uart: Fix module autoload for OF platform driver
2015-10-04 19:09:21 +01:00
jsm
serial: jsm: some off by one bugs
2015-03-26 23:00:36 +01:00
21285.c
…
68328serial.c
tty: Remove tty_port::close_wait
2015-10-17 21:11:29 -07:00
altera_jtaguart.c
drivers/tty/serial: altera: fix typos in #endif comments
2015-05-06 22:26:58 +02:00
altera_uart.c
serial: altera_uart: Use of_property_read_u32 instead of open-coding it
2015-10-04 17:47:49 +01:00
amba-pl010.c
serial: Test/disable MSIs if switching from N_PPS
2014-11-06 14:57:27 -08:00
amba-pl011.c
serial: amba-pl011: fix incorrect integer size in pl011_fifo_to_tty()
2015-10-17 21:29:21 -07:00
apbuart.c
tty: serial: apbuart: Fix module autoload for OF platform driver
2015-10-04 19:09:21 +01:00
apbuart.h
…
ar933x_uart.c
serial: ar933x_uart: Fix off-by-one for checking valid alias id
2015-03-07 03:20:25 +01:00
arc_uart.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
atmel_serial.c
serial: at91, fix rs485 properties
2015-10-17 21:14:06 -07:00
bcm63xx_uart.c
bcm63xx_uart: Use the device name when registering an interrupt
2015-11-20 16:19:54 -08:00
bfin_sport_uart.c
tty: pr_warning->pr_warn and logging neatening
2014-11-25 17:06:38 -08:00
bfin_sport_uart.h
…
bfin_uart.c
serial: bfin: ctsrts: enfore Kconfig naming convention
2015-05-06 22:26:59 +02:00
clps711x.c
serial: mctrl-gpio: rename init function
2015-10-04 18:46:43 +01:00
crisv10.c
tty: Remove tty_port::close_wait
2015-10-17 21:11:29 -07:00
crisv10.h
cris: Remove obsolete ASYNC_SPLIT_TERMIOS behavior
2014-11-05 20:18:30 -08:00
digicolor-usart.c
tty/serial: digicolor: remove sysrq reference
2015-02-02 10:11:25 -08:00
dz.c
…
dz.h
…
earlycon-arm-semihost.c
…
earlycon.c
serial: earlycon: Add missing spinlock initialization
2015-12-12 23:05:28 -08:00
efm32-uart.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
etraxfs-uart.c
serial: etraxfs-uart: Fix crash
2015-11-20 16:19:54 -08:00
fsl_lpuart.c
serial: fsl_lpuart: add earlycon support
2015-10-17 21:18:30 -07:00
icom.c
tty: icom.c: move assignment out of if () block
2015-05-10 19:04:17 +02:00
icom.h
…
ifx6x60.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
ifx6x60.h
…
imx.c
Merge 4.3-rc5 into tty-next
2015-10-12 10:54:35 -07:00
ioc3_serial.c
tty: ioc3_serial.c: move assignment out of if () block
2015-05-10 19:04:17 +02:00
ioc4_serial.c
tty: ioc4_serial.c: move assignment out of if () block
2015-05-10 19:04:17 +02:00
ip22zilog.c
serial: use container_of to resolve uart_ip22zilog_port from uart_port
2014-11-05 19:20:52 -08:00
ip22zilog.h
…
Kconfig
serial: fsl_lpuart: Fix earlycon support
2015-11-20 16:19:54 -08:00
kgdb_nmi.c
serial: kgdb_nmi: Use bool function return values of true/false not 1/0
2015-05-06 22:26:57 +02:00
kgdboc.c
…
lantiq.c
drivers/tty: make serial/lantic.c driver explicitly non-modular
2015-07-23 18:27:41 -07:00
lpc32xx_hs.c
tty: serial: lpc32xx_hs: fix handling platform_get_irq result
2015-10-04 19:09:21 +01:00
m32r_sio_reg.h
…
m32r_sio.c
serial: use container_of to resolve uart_sio_port from uart_port
2014-11-05 19:20:52 -08:00
m32r_sio.h
…
Makefile
serial: stm32-usart: Add STM32 USART Driver
2015-06-10 17:34:26 -07:00
max310x.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
max3100.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
mcf.c
drivers/tty/serial/mcf.c: fix typo on SERIAL_MCF_CONSOLE
2015-05-06 22:26:59 +02:00
men_z135_uart.c
tty: serial: men_z135_uart.c: use mcb memory region size instead of hardcoded one
2015-10-17 21:05:43 -07:00
meson_uart.c
ARM: meson: serial: convert iounmap to devm_iounmap
2015-05-06 22:27:02 +02:00
mpc52xx_uart.c
serial: mpc52xx: add delay after resetting transmitter to fix broken chars
2015-10-04 17:27:56 +01:00
mpsc.c
tty: disable unbind for old 74xx based serial/mpsc console port
2015-10-17 21:18:30 -07:00
msm_serial.c
tty: serial: msm: Remove 115.2 Kbps maximum baud rate limitation
2015-10-04 19:15:17 +01:00
msm_serial.h
tty: serial: msm: Add RX DMA support
2015-10-04 19:15:17 +01:00
mux.c
parisc: serial/mux: Convert to uart_console_device instead of open-coded
2015-10-22 15:44:28 +02:00
mxs-auart.c
serial: mctrl-gpio: rename init function
2015-10-04 18:46:43 +01:00
netx-serial.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
nwpserial.c
serial: Fix build failure caused by missing header file
2014-09-08 16:17:45 -07:00
of_serial.c
serial: Enable Freescale 16550 workaround on arm
2015-10-17 21:05:46 -07:00
omap-serial.c
serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
2016-02-25 12:01:14 -08:00
pch_uart.c
pch_uart: don't hardcode PCI slot to get DMA device
2014-08-01 16:04:21 -07:00
pmac_zilog.c
tty: constify of_device_id array
2015-03-26 22:49:10 +01:00
pmac_zilog.h
…
pnx8xxx_uart.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
pxa.c
tty: constify of_device_id array
2015-03-26 22:49:10 +01:00
rp2.c
…
sa1100.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
samsung.c
serial: samsung: Fix UART status handling in DMA mode
2015-10-04 17:44:52 +01:00
samsung.h
serial: samsung: fix DMA mode enter condition for small FIFO sizes
2015-08-04 22:07:23 -07:00
sb1250-duart.c
…
sc16is7xx.c
Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
2015-11-05 13:15:12 -08:00
sccnxp.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
serial_core.c
tty: Remove tty_port::close_wait
2015-10-17 21:11:29 -07:00
serial_ks8695.c
tty/serial: kill off set_irq_flags usage
2015-06-09 12:26:32 -07:00
serial_mctrl_gpio.c
serial: mctrl_gpio: implement interrupt handling
2015-10-04 18:47:51 +01:00
serial_mctrl_gpio.h
serial: fix mctrl helper functions
2015-10-17 21:21:07 -07:00
serial_txx9.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
serial-tegra.c
serial: tegra: Add helper function for handling RX buffer
2015-10-17 21:07:57 -07:00
sh-sci.c
serial: sh-sci: Fix length of scatterlist
2015-12-12 21:42:31 -08:00
sh-sci.h
serial: sh-sci: Correct SCIF_ERROR_CLEAR for plain SCIF
2015-10-04 17:33:48 +01:00
sirfsoc_uart.c
serial: sirf: let uart's receive start in right place
2015-07-23 15:32:04 -07:00
sirfsoc_uart.h
serial: sirf: let uart's receive start in right place
2015-07-23 15:32:04 -07:00
sn_console.c
drivers/tty: make serial/sn_console.c driver explicitly non-modular
2015-07-23 18:27:41 -07:00
sprd_serial.c
tty: serial: sprd: Fix module autoload for OF platform driver
2015-10-04 19:09:21 +01:00
st-asc.c
tty/serial: st-asc: drop the use of IRQF_NO_SUSPEND
2015-10-04 19:11:05 +01:00
stm32-usart.c
tty/serial: st-asc: drop the use of IRQF_NO_SUSPEND
2015-10-04 19:11:05 +01:00
suncore.c
drivers/tty: make serial/suncore.c driver explicitly non-modular
2015-07-23 18:27:41 -07:00
sunhv.c
tty/serial: Skip 'NULL' char after console break when sysrq enabled
2015-12-24 12:13:37 -05:00
sunsab.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
sunsab.h
…
sunsu.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
sunzilog.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
sunzilog.h
…
tilegx.c
…
timbuart.c
Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-12-14 16:10:09 -08:00
timbuart.h
…
uartlite.c
serial: xilinx: Use platform_get_irq to get irq description structure
2015-04-28 14:26:21 +02:00
ucc_uart.c
serial/uuc_uart: Support higher bitrates than 115200 Bit/s
2015-07-23 18:05:00 -07:00
vr41xx_siu.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
vt8500_serial.c
tty: serial: drop owner assignment from platform_drivers
2014-10-20 16:21:45 +02:00
xilinx_uartps.c
serial: xuartps: add __init to earlycon write method
2015-05-10 19:10:08 +02:00
zs.c
…
zs.h
…