RE: [RFCv2 06/10] x86/uaccess: Remove tags from the address before checking
From: David Laight
Date: Thu May 12 2022 - 09:03:06 EST
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
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