Re: [PATCH v2] vmap(): don't allow invalid pages
From: Yury Norov <yury.norov@gmail.com>
Date: 2022-01-26 02:29:18
Also in:
linux-mm, lkml
On Tue, Jan 25, 2022 at 6:25 PM Andrew Morton [off-list ref] wrote:
On Tue, 18 Jan 2022 17:21:09 -0800 Yury Norov [off-list ref] wrote:quoted
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.
User means user of vmap() API. The discussion is here: https://lore.kernel.org/linux-mm/20220118235244.540103-1-yury.norov@gmail.com/ (local) I'll send v3 soon with more details in the patch description. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel