Muchun Song 19cbd78fb2 mm: kfence: fix objcgs vector allocation ... commit 8f0b364973 upstream. If the kfence object is allocated to be used for objects vector, then this slot of the pool eventually being occupied permanently since the vector is never freed. The solutions could be (1) freeing vector when the kfence object is freed or (2) allocating all vectors statically. Since the memory consumption of object vectors is low, it is better to chose (2) to fix the issue and it is also can reduce overhead of vectors allocating in the future. Link: https://lkml.kernel.org/r/20220328132843.16624-1-songmuchun@bytedance.com Fixes: d3fb45f370 ("mm, kfence: insert KFENCE hooks for SLAB") Signed-off-by: Muchun Song <songmuchun@bytedance.com> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Xiongchun Duan <duanxiongchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-05-01 17:22:28 +02:00
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core.c	mm: kfence: fix objcgs vector allocation	2022-05-01 17:22:28 +02:00
kfence_test.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
kfence.h	mm: kfence: fix objcgs vector allocation	2022-05-01 17:22:28 +02:00
Makefile	kfence: add test suite	2021-02-26 09:41:02 -08:00
report.c	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-27 14:38:51 +02:00