Re: [PATCH] tty: fix memory leak in vc_deallocate

Greg KH
2021-03-28T08:46:36Z

On Sun, Mar 28, 2021 at 12:44:43AM +0300, Pavel Skripkin wrote:
> syzbot reported memory leak in tty/vt.
> The problem was in VT_DISALLOCATE ioctl cmd.
> After allocating unimap with PIO_UNIMAP it wasn't
> freed via VT_DISALLOCATE, but vc_cons[currcons].d was
> zeroed.
>
> Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
> Reported-by: syzbot+bcc922b19ccc64240b42@syzkaller.appspotmail.com
> ---
> drivers/tty/vt/vt.c | 1 +
> 1 file changed, 1 insertion(+)

Is this patch tested by syzbot to fix the problem?

thanks,

greg k-h