linux-kernel - [PATCH v2 0/1] kasan: fix memory leak of kasan quarantine

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Message-ID: <1608207487-30537-1-git-send-email-Kuan-Ying.Lee@mediatek.com>
Date:   Thu, 17 Dec 2020 20:18:06 +0800
From:   Kuan-Ying Lee <Kuan-Ying.Lee@...iatek.com>
To:     Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <kasan-dev@...glegroups.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <wsd_upstream@...iatek.com>,
        <stable@...r.kernel.org>,
        Kuan-Ying Lee <Kuan-Ying.Lee@...iatek.com>
Subject: [PATCH v2 0/1] 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.

Changes since v2:
 - Add Fixes in the commit message

Kuan-Ying Lee (1):
  kasan: fix memory leak of kasan quarantine

 mm/kasan/quarantine.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.18.0