From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Alexander Potapenko <glider@google.com>,
dvyukov@google.com, kcc@google.com, adech.fo@gmail.com,
cl@linux.com, akpm@linux-foundation.org, rostedt@goodmis.org,
js1304@gmail.com, iamjoonsoo.kim@lge.com,
kuthonuzo.luruo@hpe.com
Cc: kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v2] kasan: avoid overflowing quarantine size on low memory systems
Date: Tue, 2 Aug 2016 19:09:44 +0300 [thread overview]
Message-ID: <57A0C5C8.4030304@virtuozzo.com> (raw)
In-Reply-To: <1470133620-28683-1-git-send-email-glider@google.com>
On 08/02/2016 01:27 PM, Alexander Potapenko wrote:
> If the total amount of memory assigned to quarantine is less than the
> amount of memory assigned to per-cpu quarantines, |new_quarantine_size|
> may overflow. Instead, set it to zero.
>
> Reported-by: Dmitry Vyukov <dvyukov@google.com>
> Fixes: 55834c59098d ("mm: kasan: initial memory quarantine
> implementation")
> Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
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WARNING: multiple messages have this Message-ID (diff)
From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Alexander Potapenko <glider@google.com>, <dvyukov@google.com>,
<kcc@google.com>, <adech.fo@gmail.com>, <cl@linux.com>,
<akpm@linux-foundation.org>, <rostedt@goodmis.org>,
<js1304@gmail.com>, <iamjoonsoo.kim@lge.com>,
<kuthonuzo.luruo@hpe.com>
Cc: <kasan-dev@googlegroups.com>, <linux-kernel@vger.kernel.org>,
<linux-mm@kvack.org>
Subject: Re: [PATCH v2] kasan: avoid overflowing quarantine size on low memory systems
Date: Tue, 2 Aug 2016 19:09:44 +0300 [thread overview]
Message-ID: <57A0C5C8.4030304@virtuozzo.com> (raw)
In-Reply-To: <1470133620-28683-1-git-send-email-glider@google.com>
On 08/02/2016 01:27 PM, Alexander Potapenko wrote:
> If the total amount of memory assigned to quarantine is less than the
> amount of memory assigned to per-cpu quarantines, |new_quarantine_size|
> may overflow. Instead, set it to zero.
>
> Reported-by: Dmitry Vyukov <dvyukov@google.com>
> Fixes: 55834c59098d ("mm: kasan: initial memory quarantine
> implementation")
> Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
next prev parent reply other threads:[~2016-08-02 16:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-02 10:27 [PATCH v2] kasan: avoid overflowing quarantine size on low memory systems Alexander Potapenko
2016-08-02 10:27 ` Alexander Potapenko
2016-08-02 16:09 ` Andrey Ryabinin [this message]
2016-08-02 16:09 ` Andrey Ryabinin
2016-08-10 22:50 ` Andrew Morton
2016-08-10 22:50 ` Andrew Morton
2016-08-11 13:42 ` Alexander Potapenko
2016-08-11 13:42 ` Alexander Potapenko
2016-08-11 15:06 ` Andrey Ryabinin
2016-08-11 15:06 ` Andrey Ryabinin
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