From: Andrew Morton <akpm@linux-foundation.org>
To: Yury Norov <yury.norov@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Nicholas Piggin <npiggin@gmail.com>,
Ding Tianhong <dingtianhong@huawei.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Matthew Wilcox <willy@infradead.org>,
Alexey Klimov <aklimov@redhat.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2] vmap(): don't allow invalid pages
Date: Tue, 25 Jan 2022 18:25:50 -0800 [thread overview]
Message-ID: <20220125182550.7c693c76fe6520047c2e4f26@linux-foundation.org> (raw)
In-Reply-To: <20220119012109.551931-1-yury.norov@gmail.com>
On Tue, 18 Jan 2022 17:21:09 -0800 Yury Norov <yury.norov@gmail.com> wrote:
> vmap() takes struct page *pages as one of arguments, and user may provide
> an invalid pointer which would lead to data abort at address translation
> later.
Does "user" mean userspace code?
If so, please tell us much more about the means by which userspace can
trigger this problem.
next prev parent reply other threads:[~2022-01-26 2:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-19 1:21 Yury Norov
2022-01-26 2:25 ` Andrew Morton [this message]
2022-01-26 2:29 ` Yury Norov
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