tty: limit terminal size to 4M chars

[pandora-kernel.git] / drivers / tty / vt / vt.c

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 97eb987..9dc1e2b 100644 (file)
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -882,6 +882,8 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
        if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
                return 0;
 
+       if (new_screen_size > (4 << 20))
+               return -EINVAL;
        newscreen = kmalloc(new_screen_size, GFP_USER);
        if (!newscreen)
                return -ENOMEM;