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@mail.gmail.com

Link: http://lkml.kernel.org/r/[email protected]
Fixes: f9e13c0a5a33 ("slab, slub: skip unnecessary kasan_cache_shutdown()")
Signed-off-by: Jason A. Donenfeld <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Cc: Shakeel Butt <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 3d35d062970d2459ecee5573cf512a999061b3ab..c253c1b46c6b12b2a7f2f3879bba0cf698a47866 100644 (file)
--- 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