vt: clear selection before resizing
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> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
03842c1739
commit
009e39ae44
|
@ -876,6 +876,9 @@ 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;
|
||||
|
||||
|
|
Loading…
Reference in New Issue