[to-be-updated] kasan-fix-memory-leak-of-kasan-quarantine.patch removed from -mm tree - Linux-stable-mirror

22 Dec 2020

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

    