Joonsoo Kim 0ab686d8c8 kasan/quarantine: fix bugs on qlist_move_cache() ... There are two bugs on qlist_move_cache(). One is that qlist's tail isn't set properly. curr->next can be NULL since it is singly linked list and NULL value on tail is invalid if there is one item on qlist. Another one is that if cache is matched, qlist_put() is called and it will set curr->next to NULL. It would cause to stop the loop prematurely. These problems come from complicated implementation so I'd like to re-implement it completely. Implementation in this patch is really simple. Iterate all qlist_nodes and put them to appropriate list. Unfortunately, I got this bug sometime ago and lose oops message. But, the bug looks trivial and no need to attach oops. Fixes: 55834c5909 ("mm: kasan: initial memory quarantine implementation") Link: http://lkml.kernel.org/r/1467766348-22419-1-git-send-email-iamjoonsoo.kim@lge.com Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Acked-by: Alexander Potapenko <glider@google.com> Cc: Kuthonuzo Luruo <poll.stdin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-07-15 14:54:27 +09:00
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Makefile	mm: kasan: initial memory quarantine implementation	2016-05-20 17:58:30 -07:00
kasan.c	mm: mempool: kasan: don't poot mempool objects in quarantine	2016-06-24 17:23:52 -07:00
kasan.h	mm: kasan: remove unused 'reserved' field from struct kasan_alloc_meta	2016-05-26 15:35:44 -07:00
kasan_init.c	x86/kasan, mm: Introduce generic kasan_populate_zero_shadow()	2015-08-22 14:54:55 +02:00
quarantine.c	kasan/quarantine: fix bugs on qlist_move_cache()	2016-07-15 14:54:27 +09:00
report.c	mm: kasan: initial memory quarantine implementation	2016-05-20 17:58:30 -07:00