On Tue, Dec 12, 2023 at 12:42 PM Vlastimil Babka <vbabka@xxxxxxx> wrote: > > On 12/11/23 23:11, Andrey Konovalov wrote: > > On Wed, Dec 6, 2023 at 3:45 PM Marco Elver <elver@xxxxxxxxxx> wrote: > >> > >> The is_kfence_address() implementation tolerates tagged addresses, > >> i.e. if it receives a tagged non-kfence address, it will never return > >> true. > > So just to be sure, it can't happen that a genuine kfence address would then > become KASAN tagged and handed out, and thus when tested by > is_kfence_address() it would be a false negative? No, this should not happen. KFENCE objects never get tags assigned to them.
