KASAN depends on having access to some of the accounting that SLUB_DEBUG does; without it, there are immediate crashes [1]. So, the natural thing to do is to make KASAN select SLUB_DEBUG.
[1] http://lkml.kernel.org/r/CAHmME9rtoPwxUSnktxzKso14iuVCWT7BE_-_8PAC=pgw1ij...@mail.gmail.com Fixes: f9e13c0a5a33 ("slab, slub: skip unnecessary kasan_cache_shutdown()") Cc: Shakeel Butt <shake...@google.com> Cc: David Rientjes <rient...@google.com> Cc: Christoph Lameter <c...@linux.com> Cc: Pekka Enberg <penb...@kernel.org> Cc: Joonsoo Kim <iamjoonsoo....@lge.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Andrey Ryabinin <aryabi...@virtuozzo.com> Cc: <sta...@vger.kernel.org> Cc: <linux...@kvack.org> Cc: <linux-kernel@vger.kernel.org> Signed-off-by: Jason A. Donenfeld <ja...@zx2c4.com> --- lib/Kconfig.kasan | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index 3d35d062970d..c253c1b46c6b 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -6,6 +6,7 @@ if HAVE_ARCH_KASAN config KASAN bool "KASan: runtime memory debugger" depends on SLUB || (SLAB && !DEBUG_SLAB) + select SLUB_DEBUG if SLUB select CONSTRUCTORS select STACKDEPOT help -- 2.17.1
