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History

Muchun Song 3ee2d7471f mm: kfence: fix PG_slab and memcg_data clearing

It does not reset PG_slab and memcg_data when KFENCE fails to initialize
kfence pool at runtime.  It is reporting a "Bad page state" message when
kfence pool is freed to buddy.  The checking of whether it is a compound
head page seems unnecessary since we already guarantee this when
allocating kfence pool.   Remove the check to simplify the code.

Link: https://lkml.kernel.org/r/20230320030059.20189-1-songmuchun@bytedance.com
Fixes: 0ce20dd84089 ("mm: add Kernel Electric-Fence infrastructure")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: SeongJae Park <sjpark@amazon.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

2023-03-28 15:24:32 -07:00

.kunitconfig

kfence: test: use new suite_{init/exit} support, add .kunitconfig

2022-05-02 12:35:57 -06:00

core.c

mm: kfence: fix PG_slab and memcg_data clearing

2023-03-28 15:24:32 -07:00

kfence_test.c

treewide: use get_random_u32_inclusive() when possible

2022-11-18 02:18:02 +01:00

kfence.h

mm, kfence: support kmem_dump_obj() for KFENCE objects