From: "Jason A. Donenfeld" <Jason@xxxxxxxxx> Subject: kasan: depend on CONFIG_SLUB_DEBUG 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=pGw1iJnQg@xxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/20180622154623.25388-1-Jason@xxxxxxxxx Fixes: f9e13c0a5a33 ("slab, slub: skip unnecessary kasan_cache_shutdown()") Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxxx> Reviewed-by: Shakeel Butt <shakeelb@xxxxxxxxxx> Acked-by: Christoph Lameter <cl@xxxxxxxxx> Cc: Shakeel Butt <shakeelb@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- diff -puN lib/Kconfig.kasan~kasan-depend-on-config_slub_debug lib/Kconfig.kasan --- a/lib/Kconfig.kasan~kasan-depend-on-config_slub_debug +++ a/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 _
