diff options
| author | Greg Kroah-Hartman <greg@kroah.com> | 2003-07-15 02:20:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <greg@kroah.com> | 2003-07-15 02:20:24 -0700 |
| commit | 55ffe23325264ba4c1b115c28bad5dff5abf3a4e (patch) | |
| tree | 464d3cadfd37359672aa3d975ca54100b314504e | |
| parent | 9c9e072ed0331958b3d33bb5de8c22110a428f76 (diff) | |
[PATCH] USB: fix a nasty use-after-free bug in the usb-serial core.
| -rw-r--r-- | drivers/usb/serial/usb-serial.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 8cc6f6fe7bb2..78b4337c86bd 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -530,7 +530,9 @@ static void serial_close(struct tty_struct *tty, struct file * filp) /* if disconnect beat us to the punch here, there's nothing to do */ if (tty && tty->driver_data) { __serial_close(port, filp); + tty->driver_data = NULL; } + port->tty = NULL; } static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count) |