diff options
| author | Ji-Ze Hong (Peter Hong) <[email protected]> | 2017-11-08 11:05:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2017-11-08 13:09:35 +0100 |
| commit | 07a708f0a16f040b319db647452bcb8884cd04be (patch) | |
| tree | 2c677e48e42007574c7210fc28e2f8c37d97a54d /include/linux/fpga/fpga-bridge.h | |
| parent | 21c4e7f255e38620bb4c5d1119c64114ab280e2e (diff) | |
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: 195638b6d44f ("serial: 8250_fintek: UART dynamic clocksource on Fintek F81866")
Reported-by: Lukas Redlinger <[email protected]>
Cc: Lukas Redlinger <[email protected]>
Signed-off-by: Ji-Ze Hong (Peter Hong) <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-bridge.h')
0 files changed, 0 insertions, 0 deletions