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linux/drivers/tty/serial
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Peter Hurley 308bbc9ab8 serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) 
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")
Cc: <stable@vger.kernel.org>  # 3.12+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06 23:04:51 -08:00
..
8250 8250: uniphier: allow modular build with 8250 console 2016-02-06 23:04:51 -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: Deinline neo_parse_isr, save 688 bytes 2015-12-13 19:59:48 -08:00
21285.c
68328serial.c drivers: tty: 68328serial.c: Remove parentheses after return 2015-12-13 19:59:48 -08:00
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
amba-pl011.c tty: amba-pl011: use iotype instead of access_32b to track 32-bit I/O 2016-01-06 21:02:45 -08:00
amba-pl011.h tty: amba-pl011: clean up LCR register offsets 2015-12-13 19:59:48 -08:00
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
arc_uart.c
atmel_serial.c drivers/tty/serial: delete unused MODULE_DEVICE_TABLE from atmel_serial.c 2016-01-08 21:12:19 -08:00
bcm63xx_uart.c serial/bcm63xx_uart: Deinline wait_for_xmitr, save 374 bytes 2015-12-13 19:59:48 -08:00
bfin_sport_uart.c
bfin_sport_uart.h
bfin_uart.c serial:bfin-uart:Remove 'struct timeval' 2015-12-13 19:59:48 -08:00
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
digicolor-usart.c
dz.c
dz.h
earlycon-arm-semihost.c
earlycon.c Merge 4.4-rc6 into tty-next 2015-12-21 11:06:07 -08:00
efm32-uart.c
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: Remove unused SERIAL_DO_RESTART define 2015-12-13 19:59:48 -08:00
icom.h
ifx6x60.c spi: Drop owner assignment from spi_drivers 2015-10-28 10:30:17 +09:00
ifx6x60.h
imx.c serial: imx: implement handshaking using gpios with the mctrl_gpio helper 2015-12-13 20:01:47 -08:00
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
ip22zilog.h
Kconfig ARM: SoC driver updates for v4.5 2016-01-20 18:42:30 -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.c serial/m32r_sio: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
m32r_sio.h
m32r_sio_reg.h
Makefile serial: 8250: move of_serial code to 8250 directory 2015-12-13 19:59:48 -08:00
max310x.c gpio: change member .dev to .parent 2015-11-19 09:24:35 +01:00
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 serial/men_z135_uart: Deinline men_z135_reg_clr, save 176 bytes 2015-12-13 19:59:48 -08:00
meson_uart.c ARM: meson: serial: check for tx-irq enabled in irq code 2015-12-13 19:59:48 -08:00
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
omap-serial.c serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485) 2016-02-06 23:04:51 -08:00
pch_uart.c
pmac_zilog.c tty: constify of_device_id array 2015-03-26 22:49:10 +01:00
pmac_zilog.h
pnx8xxx_uart.c
pxa.c serial/pxa: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
rp2.c
sa1100.c
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 GPIO bulk updates for the v4.5 kernel cycle: 2016-01-17 12:32:01 -08:00
sccnxp.c
serial-tegra.c serial: tegra: Add helper function for handling RX buffer 2015-10-17 21:07:57 -07:00
serial_core.c serial: support 16-bit register interface for console 2015-12-13 19:59:48 -08:00
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: export mctrl_gpio_disable_ms and mctrl_gpio_init 2015-12-13 20:01:47 -08:00
serial_mctrl_gpio.h serial: fix mctrl helper functions 2015-10-17 21:21:07 -07:00
serial_txx9.c
sh-sci.c serial: sh-sci: Remove cpufreq notifier to fix crash/deadlock 2016-01-07 21:08:05 -08:00
sh-sci.h serial: sh-sci: Add BRG register definitions 2015-12-17 11:18:44 +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 serial/sprd_serial: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
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
sunsab.h
sunsu.c serial/sunsu: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
sunzilog.c
sunzilog.h
tilegx.c
timbuart.c
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 QE: Move QE from arch/powerpc to drivers/soc 2015-12-22 17:12:56 -06:00
vr41xx_siu.c
vt8500_serial.c serial/vt8500_serial: Deinline wait_for_xmitr, save 165 bytes 2015-12-13 19:59:48 -08:00
xilinx_uartps.c serial: xuartps: add __init to earlycon write method 2015-05-10 19:10:08 +02:00
zs.c
zs.h