| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.16 035/272] kasan: free allocated shadow memory on MEM_CANCEL_ONLINE | Date | Mon, 28 May 2018 12:01:08 +0200 |
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4.16-stable review patch. If anyone has any objections, please let me know.
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From: David Hildenbrand <david@redhat.com>
commit ed1596f9ab958dd156a66c9ff1029d3761c1786a upstream.
We have to free memory again when we cancel onlining, otherwise a later onlining attempt will fail.
Link: http://lkml.kernel.org/r/20180522100756.18478-2-david@redhat.com Fixes: fa69b5989bb0 ("mm/kasan: add support for memory hotplug") Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: <stable@vger.kernel.org> 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>
--- mm/kasan/kasan.c | 1 + 1 file changed, 1 insertion(+)
--- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -865,6 +865,7 @@ static int __meminit kasan_mem_notifier( kmemleak_ignore(ret); return NOTIFY_OK; } + case MEM_CANCEL_ONLINE: case MEM_OFFLINE: { struct vm_struct *vm;
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