From: Andrew Morton <akpm@linux-foundation.org>
To: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/vmalloc: Add check for KMEM_CACHE
Date: Wed, 23 Nov 2022 20:25:37 -0800 [thread overview]
Message-ID: <20221123202537.3378bf960c01f9773f6a4675@linux-foundation.org> (raw)
In-Reply-To: <20221124040226.17953-1-jiasheng@iscas.ac.cn>
On Thu, 24 Nov 2022 12:02:26 +0800 Jiasheng Jiang <jiasheng@iscas.ac.cn> wrote:
> As KMEM_CACHE may return NULL pointer, it should
> be better to check the return value in order to
> avoid NULL pointer dereference in kmem_cache_zalloc.
>
> ...
>
> @@ -2426,15 +2426,17 @@ void __init vmalloc_init(void)
Linux assumes that allocation attempts from __init code will succeed.
Because if they fail so early in the boot process, the system is so
utterly messed up that we may as well just go oops.
prev parent reply other threads:[~2022-11-24 4:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 4:02 Jiasheng Jiang
2022-11-24 4:25 ` Matthew Wilcox
2022-11-24 4:25 ` Andrew Morton [this message]
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