From: Kirill A. Shutemov > Sent: 11 May 2022 03:28 > > The tags must not be included into check whether it's okay to access the > userspace address. > > Strip tags in access_ok(). Why? Just change the test to check the buffer doesn't cross 1u << 63. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)