NFS: Fix access to suid/sgid executables
nfs_open_permission_mask() should only check MAY_EXEC for files that are opened with __FMODE_EXEC. Also fix NFSv4 access-in-open path in a similar way -- openflags must be used because fmode will not always have FMODE_EXEC set. This patch fixes https://bugzilla.kernel.org/show_bug.cgi?id=49101Signed-off-by:Weston Andros Adamson <dros@netapp.com> Signed-off-by:
Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
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