Messages in this thread | | | Date | Thu, 4 Jun 2020 16:03:35 +0100 | From | Al Viro <> | Subject | Re: [PATCH RFC] uaccess: user_access_begin_after_access_ok() |
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On Thu, Jun 04, 2020 at 06:10:23AM -0400, Michael S. Tsirkin wrote:
> stac() > for (i = 0; i < 64; ++i) { > get_user(flags, desc[i].flags) unsafe_get_user(), please. > smp_rmb() > if (!(flags & VALID)) > break; > copy_from_user(&adesc[i], desc + i, sizeof adesc[i]); ... and that would raw_copy_from_user() (or unsafe_copy_from_user(), for wrapper that would take a label to bugger off to) > } > clac()
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