shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 02:50:49 +09:00
Code Issues Packages Projects Releases Wiki Activity

serial: ifx6x60: fix use-after-free on module unload

Browse Source 
commit 1e948479b3 upstream.

Make sure to deregister the SPI driver before releasing the tty driver
to avoid use-after-free in the SPI remove callback where the tty
devices are deregistered.

Fixes: 72d4724ea5 ("serial: ifx6x60: Add modem power off function in the platform reboot process")
Cc: Jun Chen <jun.d.chen@intel.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2017-04-26 12:24:21 +02:00
committed by Greg Kroah-Hartman
parent 04ac452dad
commit 3802abc6e0
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/tty/serial/ifx6x60.c
View File

@@ -1381,9 +1381,9 @@ static struct spi_driver ifx_spi_driver = {
static void __exit ifx_spi_exit(void)
{
/* unregister */
spi_unregister_driver(&ifx_spi_driver);
tty_unregister_driver(tty_drv);
put_tty_driver(tty_drv);
spi_unregister_driver(&ifx_spi_driver);
unregister_reboot_notifier(&ifx_modem_reboot_notifier_block);
}