kasan, slab: make freelist stored without tags
Similarly to "kasan, slub: move kasan_poison_slab hook before
page_address", move kasan_poison_slab() before alloc_slabmgmt(), which
calls page_address(), to make page_address() return value to be
non-tagged. This, combined with calling kasan_reset_tag() for off-slab
slab management object, leads to freelist being stored non-tagged.
Link: http://lkml.kernel.org/r/dfb53b44a4d00de3879a05a9f04c1f55e584f7a1.1550602886.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl at google.com>
Tested-by: Qian Cai <cai at lca.pw>
Cc: Alexander Potapenko <glider at google.com>
Cc: Andrey Ryabinin <aryabinin at virtuozzo.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Dmitry Vyukov <dvyukov at google.com>
Cc: Evgeniy Stepanov <eugenis at google.com>
Cc: Kostya Serebryany <kcc at google.com>
Cc: Vincenzo Frascino <vincenzo.frascino at arm.com>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
UnifiedSplitRaw
