On 04/10/2018 20:06, Greg Kroah-Hartman wrote: > azlig and Milan Broz reported that when the tty layer is done with a > buffer, the data can hang around in it for a very long time. That > sometimes can "leak" to userspace under some conditions. > > Because of this, just zero out the data after the tty layer is finished > with it, for buffers that we "think" should be zeroed out. > > v2 - addressed some review comments on the 2/2 patch. Hello Greg, together with our intern we re-tested both patches and it fixes the reported problem, so, if it helps anything, you can add Tested-by: Milan Broz <gmazyland@xxxxxxxxx> Tested-by: Daniel Zatovic <daniel.zatovic@xxxxxxxxx> Do you plan to add this to linux-next? Thanks! Milan > > Greg Kroah-Hartman (1): > tty: wipe buffer if not echoing data > > Linus Torvalds (1): > tty: wipe buffer. > > drivers/tty/n_tty.c | 20 +++++++++++++++++--- > drivers/tty/tty_buffer.c | 6 +++++- > 2 files changed, 22 insertions(+), 4 deletions(-) >
