21 Mar
2023
21 Mar
'23
9:41 p.m.
On Tue, Mar 21, 2023 at 01:57:19PM -0700, Mike Kravetz wrote:
This patch fixes an issue that a hugetlb uffd-wr-protected mapping can be writable even with uffd-wp bit set. It only happens with all these conditions met: (1) hugetlb memory (2) private mapping (3) original mapping was missing, then (4) being wr-protected (IOW, pte marker installed). Then
^^^^Nit, but is the word "then" intended to be there? Almost makes it sound as if wr-protected was a result of the previous 3 conditions being met.
Not intended.. Since this is not fixup-able, I'll reword here when I'll need to repost.
[...]
Reviewed-by: Mike Kravetz mike.kravetz@oracle.com
Thanks!
--
Peter Xu