From: Andrey Ryabinin <ryabinin.a.a@gmail.com>
To: Gautam Menghani <gautammenghani201@gmail.com>,
glider@google.com, andreyknvl@gmail.com, dvyukov@google.com,
vincenzo.frascino@arm.com, akpm@linux-foundation.org
Cc: kasan-dev@googlegroups.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, skhan@linuxfoundation.org
Subject: Re: [PATCH] mm/kasan: Fix null pointer dereference warning in qlink_to_cache()
Date: Mon, 27 Jun 2022 17:30:58 +0300 [thread overview]
Message-ID: <dddd7c7e-3c60-f916-2947-4ee00a765574@gmail.com> (raw)
In-Reply-To: <20220626170355.198913-1-gautammenghani201@gmail.com>
On 6/26/22 20:03, Gautam Menghani wrote:
> The function virt_to_slab() declared in slab.h can return NULL if the
> address does not belong to a slab. This case is not handled in the
> function qlink_to_cache() in the file quarantine.c, which can cause a
> NULL pointer dereference in "virt_to_slab(qlink)->slab_cache".
qlink is always slab address, so I don't think this patch makes sense.
NAK.
prev parent reply other threads:[~2022-06-27 14:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-26 17:03 Gautam Menghani
2022-06-27 14:30 ` Andrey Ryabinin [this message]
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