diff options
Diffstat (limited to 'drivers/tty/pty.c')
| -rw-r--r-- | drivers/tty/pty.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index a9d256d6e909..6e1f1505f04e 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -210,6 +210,9 @@ static int pty_signal(struct tty_struct *tty, int sig) { struct pid *pgrp; + if (sig != SIGINT && sig != SIGQUIT && sig != SIGTSTP) + return -EINVAL; + if (tty->link) { pgrp = tty_get_pgrp(tty->link); if (pgrp) |