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07a708f0a1
linux/drivers/tty
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Ji-Ze Hong (Peter Hong) 07a708f0a1 serial: 8250_fintek: Fix crash with baud rate B0 
The 8250_fintek.c is support the Fintek F81866/F81216 with dynamic clock.
But It'll generate "division by zero" exception and crash in
fintek_8250_set_termios() with baud rate 0 on baudrate_table[i] % baud.

It can be tested with following C code:

	...
	struct termios options;

	tcgetattr(fd, &options);
	...
	options.c_cflag = CS8 | CREAD; /* baud rate 0 */
	tcsetattr(fd, TCSANOW, &options);
	tcflush(fd, TCIOFLUSH);

Fixes: 195638b6d4 ("serial: 8250_fintek: UART dynamic clocksource on Fintek F81866")
Reported-by: Lukas Redlinger <rel+kernel@agilox.net>
Cc: Lukas Redlinger <rel+kernel@agilox.net>
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08 13:09:35 +01:00
..
hvc tty: hvc: Remove redundant license text 2017-11-08 13:08:12 +01:00
ipwireless tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
serdev tty: serdev: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial serial: 8250_fintek: Fix crash with baud rate B0 2017-11-08 13:09:35 +01:00
vt tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
amiserial.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
bfin_jtag_comm.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
cyclades.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
ehv_bytechan.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
goldfish.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
isicom.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2017-09-10 09:57:23 -07:00
Makefile sparc64: vcc: Enable VCC module in linux 2017-08-15 21:33:50 -07:00
metag_da.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
mips_ejtag_fdc.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
moxa.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
moxa.h
mxser.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
mxser.h
n_gsm.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_hdlc.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_null.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_r3964.c tty: Remove redundant license text 2017-11-08 13:08:12 +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 tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
nozomi.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
pty.c TTY/Serial updates for 4.14-rc1 2017-09-05 10:30:48 -07:00
rocket_int.h tty: rocket: Remove private close_wait 2016-01-28 14:13:44 -08:00
rocket.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
rocket.h
synclink_gt.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
synclink.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
synclinkmp.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
sysrq.c tty/sysrq: Convert timers to use timer_setup() 2017-10-20 14:06:46 +02:00
tty_audit.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
tty_baudrate.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_buffer.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_io.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_ioctl.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_jobctrl.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_ldisc.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
tty_ldsem.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
tty_mutex.c Merge 4.5-rc4 into tty-next 2016-02-14 14:36:04 -08:00
tty_port.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
vcc.c tty: vcc: Convert timers to use timer_setup() 2017-11-04 12:01:54 +01:00