On 04/20, Thomas Gleixner wrote:
>
> > kernel/signal.c:3457 do_sigaction() warn: potential spectre issue
> > 'p->sighand->action'
>
> This one is correctly detected
Not sure,
k = &p->sighand->action[sig-1];
calculates the addr, although we do '*oact = *k' later. I dunno.
> > kernel/signal.c:65 sig_handler() warn: potential spectre issue
> > 't->sighand->action'
>
> It's unclear from a quick look whether it's really possible to speculate
> all over the other things there, but we probably err out on the safe side
at least not in do_sigaction(). And in fact do_sigaction() doesn't need
sig_handler() at all, it could use act->sa.sa_handler instead.
Oleg.
