On Mon, Oct 22, 2012 at 2:19 AM, Florian Fainelli <ffaine...@freebox.fr> wrote: > From: Maxime Bizon <mbi...@freebox.fr> > > record_size / console_size / ftrace_size can be 0 (this is how you > disable the feature), but rounddown_pow_of_two(0) is undefined. As suggested > by Kees Cook, use !is_power_of_2() as a condition to call rounddown_pow_of_two > and avoid its undefined behavior on the value 0. This issue has been present > since commit 1894a253 (ramoops: Move to fs/pstore/ram.c). > > CC: sta...@vger.kernel.org > Signed-off-by: Maxime Bizon <mbi...@freebox.fr> > Signed-off-by: Florian Fainelli <ffaine...@freebox.fr>
Thanks for the fix! Acked-by: Kees Cook <keesc...@chromium.org> -Kees -- Kees Cook Chrome OS Security -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
