> I think this should fix the problems? > > diff --git a/include/linux/secretmem.h b/include/linux/secretmem.h > index 21c3771e6a56..988528b5da43 100644 > --- a/include/linux/secretmem.h > +++ b/include/linux/secretmem.h > @@ -23,7 +23,7 @@ static inline bool page_is_secretmem(struct page *page) > mapping = (struct address_space *) > ((unsigned long)page->mapping & ~PAGE_MAPPING_FLAGS); > > - if (mapping != page->mapping) > + if (!mapping || mapping != page->mapping) > return false; > > return mapping->a_ops == &secretmem_aops; I have validated that my system was stable after several days on v5.13.19. I'm now booted into a v5.14.8 kernel with this patch, and I'll try to report back if I see a crash; or in roughly a week if the system seems to have stabilized. Thanks, Stephen
