On Mon, Apr 09, 2012 at 11:38:16AM -0700, Chase Douglas wrote: > We guess ten simultaneous touches if the device does not tell us. The > Linux drivers for the Apple multitouch trackpads do not tell the number > of simultaneous touches, but they can do more than ten. When this > occurs, the array index into the touch records will be invalid. We must > not process the touch or else we will segfault. > > Signed-off-by: Chase Douglas <[email protected]> > --- > src/eventcomm.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/src/eventcomm.c b/src/eventcomm.c > index 3ceb98c..9d1233c 100644 > --- a/src/eventcomm.c > +++ b/src/eventcomm.c > @@ -564,6 +564,9 @@ EventProcessTouchEvent(InputInfoPtr pInfo, struct > SynapticsHwState *hw, > { > int slot_index = last_mt_vals_slot(priv); > > + if (slot_index < 0) > + return; > + > if (hw->slot_state[slot_index] == SLOTSTATE_EMPTY || > hw->slot_state[slot_index] == SLOTSTATE_OPEN_EMPTY) > hw->slot_state[slot_index] = SLOTSTATE_UPDATE; > -- > 1.7.9.1
4c87455..3f9794a master -> master thanks. should we scheduling a work proc to resize this? Cheers, Peter _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
