On Fri, Sep 22, 2023 at 3:33 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Mon, 28 Aug 2023 17:08:57 +0200 Florent Revest <revest@xxxxxxxxxxxx> wrote: > > > This extends the current PR_SET_MDWE prctl arg with a bit to indicate > > that the process doesn't want MDWE protection to propagate to children. > > > > To implement this no-inherit mode, the tag in current->mm->flags must be > > absent from MMF_INIT_MASK. This means that the encoding for "MDWE but > > without inherit" is different in the prctl than in the mm flags. This > > leads to a bit of bit-mangling in the prctl implementation. > > Is a manpage update planned? Ah that's a good point, I didn't think about it, thank you. > And did we update the manpage for PR_SET_MDWE? No we didn't but I sent a patch to man-pages here: https://lore.kernel.org/linux-man/20231003155010.3651349-1-revest@xxxxxxxxxxxx/
