On 10/25/2017 12:46 PM, Boris Ostrovsky wrote: > On 10/25/2017 11:08 AM, Juergen Gross wrote: >> In case gntdev_mmap() succeeds only partially in mapping grant pages >> it will leave some vital information uninitialized needed later for >> cleanup. This will lead to an out of bounds array access when unmapping >> the already mapped pages. >> >> So just initialize the data needed for unmapping the pages a little bit >> earlier. >> >> Cc: <stable@xxxxxxxxxxxxxxx> >> Reported-by: Arthur Borsboom <arthurborsboom@xxxxxxxxx> >> Signed-off-by: Juergen Gross <jgross@xxxxxxxx> > Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> > Applied to for-linus-4.14c. -boris