The patch titled Subject: kasan: fix memory leak of kasan quarantine has been removed from the -mm tree. Its filename was kasan-fix-memory-leak-of-kasan-quarantine.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------ From: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Subject: kasan: fix memory leak of kasan quarantine
When cpu is going offline, set q->offline as true and interrupt happened. The interrupt may call the quarantine_put. But quarantine_put do not free the the object. The object will cause memory leak.
Add qlink_free() to free the object.
Link: https://lkml.kernel.org/r/1608207487-30537-2-git-send-email-Kuan-Ying.Lee@me... Fixes: 6c82d45c7f03 (kasan: fix object remaining in offline per-cpu quarantine) Signed-off-by: Kuan-Ying Lee Kuan-Ying.Lee@mediatek.com Cc: Andrey Ryabinin aryabinin@virtuozzo.com Cc: Alexander Potapenko glider@google.com Cc: Dmitry Vyukov dvyukov@google.com Cc: Matthias Brugger matthias.bgg@gmail.com Cc: stable@vger.kernel.org [5.10-] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
mm/kasan/quarantine.c | 1 + 1 file changed, 1 insertion(+)
--- a/mm/kasan/quarantine.c~kasan-fix-memory-leak-of-kasan-quarantine +++ a/mm/kasan/quarantine.c @@ -194,6 +194,7 @@ bool quarantine_put(struct kmem_cache *c
q = this_cpu_ptr(&cpu_quarantine); if (q->offline) { + qlink_free(&info->quarantine_link, cache); local_irq_restore(flags); return false; } _
Patches currently in -mm which might be from Kuan-Ying.Lee@mediatek.com are