| Message ID | alpine.DEB.2.20.1610131209180.5961@pc (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 06fb39c..5d6a549 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -874,6 +874,9 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc, if (!newscreen) return -ENOMEM; + if (vc == sel_cons) + clear_selection(); + old_rows = vc->vc_rows; old_row_size = vc->vc_size_row;
When resizing a vt its selection may exceed the new size, resulting in an invalid memory access [1]. Clear the selection before resizing. [1] http://lkml.kernel.org/r/CACT4Y+acDTwy4umEvf5ROBGiRJNrxHN4Cn5szCXE5Jw-d1B=Xw@mail.gmail.com Reported-and-tested-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Scot Doyle <lkml14@scotdoyle.com> --- drivers/tty/vt/vt.c | 3 +++ 1 file changed, 3 insertions(+)