Messages in this thread | | | From | Andy Lutomirski <> | Date | Thu, 25 Mar 2021 21:58:54 -0700 | Subject | Re: [PATCH v7 5/6] x86/signal: Detect and prevent an alternate signal stack overflow |
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I forgot to mention why I cc'd all you fine Xen folk:
On Thu, Mar 25, 2021 at 11:13 AM Andy Lutomirski <luto@kernel.org> wrote:
> > > } else if (IS_ENABLED(CONFIG_X86_32) && > > !onsigstack && > > regs->ss != __USER_DS &&
This bit here seems really dubious on Xen PV. Honestly it seems dubious everywhere, but especially on Xen PV.
--Andy
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