The patch titled
Subject: kasan: depend on CONFIG_SLUB_DEBUG
has been added to the -mm tree. Its filename is
kasan-depend-on-config_slub_debug.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kasan-depend-on-config_slub_debug.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kasan-depend-on-config_slub_debug.patch
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------------------------------------------------------
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>
Cc: Shakeel Butt <shakeelb@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
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>
---
lib/Kconfig.kasan | 1 +
1 file changed, 1 insertion(+)
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
_
Patches currently in -mm which might be from Jason@xxxxxxxxx are
kasan-depend-on-config_slub_debug.patch
